Blog
Feedback
Refer a Friend
Pick Engine to Find Parts
Close
Cummins Cylinder Heads Gasket kitCummins Cylinder Heads Gasket kitCummins Cylinder Heads Gasket kit

Cylinder Head Catalog for Cummins Marine & Industrial Applications

Introduction: Dependable Power Starts at the Top

In every Cummins diesel engine—whether it’s driving a workboat, powering a remote generator, or running vital industrial equipment—the cylinder head plays a critical role. Responsible for sealing the combustion chamber, housing fuel injectors, regulating air and exhaust flow, and transferring heat, the cylinder head must perform under extreme pressure and heat. For marine and industrial applications, where reliability is essential and downtime is costly, a high-quality cylinder head is not optional—it’s a necessity.

At Diesel Pro Power, we specialize in aftermarket Cummins cylinder heads engineered with top-grade materials for exceptional durability, precision, and compatibility. We stock components for all major Cummins engine families, from compact 4-cylinder models to the most powerful 12- and 16-cylinder configurations. Whether you're overhauling an auxiliary generator on a cargo ship or replacing the top-end of a tugboat's propulsion engine, Diesel Pro delivers fast, secure access to the parts you need—without the wait or inflated costs.

What Makes a Great Cylinder Head for Cummins Engines?

The cylinder head is the structural platform for critical engine components. In a high-compression Cummins diesel, this means it must be:

  • Precisely machined to ensure a tight seal and efficient combustion

  • Resistant to extreme thermal cycling and combustion pressures

  • Designed for compatibility with injector sleeves, valve guides, and gaskets

  • Strong enough to support turbocharging and aftercooling configurations

A failure in the cylinder head—whether due to cracks, warping, or erosion—can result in:

  • Coolant or oil leaks

  • Loss of engine compression

  • Valve timing issues

  • Engine misfiring or overheating

That’s why we only offer top-grade aftermarket Cummins cylinder heads that meet or exceed OEM standards in form, function, and durability.

Why Buy Cummins Cylinder Heads from Diesel Pro Power?

Fast Shipping, Global Reach

We ship most orders within 24 hours. Customers in the United States, Latin America, the Caribbean, the Middle East, and across Europe depend on our streamlined logistics. For international orders, duties and taxes can be prepaid for quicker, hassle-free delivery.

Large, Accurate Inventory

From older mechanical models to the latest electronically controlled engines, our inventory covers virtually every Cummins cylinder head still in service today. Each part listing is clearly labeled and easy to search by engine model, making it simple to get the exact part you need.

Top-Grade Aftermarket Quality

Our heads are manufactured using top-grade materials selected for durability, heat tolerance, and corrosion resistance. We offer both bare and fully assembled cylinder heads—complete with valves, valve seats, valve springs, and injector sleeves—to suit different repair or rebuild scenarios.

Direct Pricing with No Middleman

Because Diesel Pro Power is a warehouse-direct provider, you pay less. There are no hidden markups from dealers or resellers, and you get warehouse-level pricing with fast fulfillment.

Secure Ordering and Expert Support

Our website is built on a secure platform that protects your data during every transaction. If you’re not sure which cylinder head is compatible with your engine, our team is here to help. Contact us via phone, email, or live chat, and one of our bilingual diesel experts will assist you in English or Spanish.

Cummins Cylinder Heads by Engine Model

 

B Series: 4B, 4BT, 4BTA, 6B, 6BT, 6BTA, ISB, QSB

The Cummins B Series is known for its compact size, fuel efficiency, and reliability in both marine and industrial settings. These engines are popular in auxiliary marine power, agriculture, and light-duty construction.

Key Features:

  • Available in 4- and 6-cylinder configurations

  • Mechanical and electronically controlled variants

  • Support for turbocharged and aftercooled designs

  • Ideal for rebuilds, repowers, and top-end service

Common Applications:

  • Fishing boats

  • Marine generators

  • Farm equipment

  • Light industrial pumps and compressors

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.


Cylinder Head and Related Components Catalog for the Following Engine Models:

4B Cylinder Head and Related Components Catalog

Available Components for Cummins 4B Cylinder Head:

  • Cylinder Head Assembly 7mm Injector Tubes for Cummins4B

  • Cylinder Head Assembly 9mm Injector Tubes for Cummins4B

  • Intake Valve Kit for Cummins 4B

  • Exhaust Valve Kit for Cummins 4B

  • Cylinder Head Bolt 70mm for Cummins 4B

  • Cylinder Head Bolt 120mm for Cummins 4B

  • Upper Gasket Set for Cummins 4B

  • Upper Gasket Kit for Cummins 4B

  • Head Gasket for Cummins 4B

  • Valve Spring for Cummins 4B

  • Exhaust Valve Spring for Cummins 4B

  • Intake Valve Insert for Cummins 4B

  • Exhaust Valve Insert for Cummins 4B

  • Intake Valve Guide for Cummins 4B

  • Exhaust Valve Guide for Cummins 4B

  • Valve Guide Seal for Cummins 4B

  • Fuel Manifold for Cummins 4B

  • New push rod for Cummins 4B

  • New heavy hexagon nut for use in Cummins 4B

  • Temperature switch for Cummins engines

  • 4BT Cylinder Head and Related Components Catalog

    Available Components for Cummins 4BT Cylinder Head:

    • Cylinder Head Assembly 7mm Injector Tubes for Cummins 4BT

    • Cylinder Head Assembly 9mm Injector Tubes for Cummins 4BT

    • Intake Valve Kit for Cummins 4BT

    • Exhaust Valve Kit for Cummins 4BT

    • Cylinder Head Bolt 70mm for Cummins 4BT

    • Cylinder Head Bolt 120mm for Cummins 4BT

    • Upper Gasket Set for Cummins 4BT

    • Upper Gasket Kit for Cummins 4BT

    • Head Gasket for Cummins 4BT

    • New gasket for the valve cover of Cummins 4BT

    • Valve Spring for Cummins 4BT

    • Intake Valve Insert for Cummins 4BT

    • Exhaust Valve Insert for Cummins 4BT

    • Intake Valve Guide for Cummins 4BT

    • Exhaust Valve Guide for Cummins 4BT

    • Valve Guide Seal for Cummins 4BT

    • Push Rod Cover Gasket for Cummins 4BT

    • Fuel Manifold for Cummins 4BT

    • Push Rod for Cummins 4BT

    • Heavy Hexagon Nut for Cummins 4BT

  • 4BTA Cylinder Head and Related Components Catalog

    Available Components for Cummins 4BTA Cylinder Head:

    • Cylinder Head Assembly 7mm Injector Tubes for Cummins 4BTA

    • Cylinder Head Assembly 9mm Injector Tubes for Cummins 4BTA

    • Intake Valve Kit for Cummins 4BTA

    • Exhaust Valve Kit for Cummins 4BTA

    • Cylinder Head Bolt 70mm for Cummins 4BTA

    • Cylinder Head Bolt 120mm for Cummins 4BTA

    • Upper Gasket Set for Cummins 4BTA

    • Upper Gasket Kit for Cummins 4BTA

    • Head Gasket for Cummins 4BTA

    • New gasket for the valve cover of Cummins 4BTA

    • Valve Spring for Cummins 4BTA

    • Intake Valve Insert for Cummins 4BTA

    • Exhaust Valve Insert for Cummins 4BTA

    • Intake Valve Guide for Cummins 4BTA

    • Exhaust Valve Guide for Cummins 4BTA

    • Valve Guide Seal for Cummins 4BTA

    • Push Rod Cover Gasket for Cummins 4BTA

    • Fuel Manifold for Cummins 4BTA

    • Push Rod for Cummins 4BTA

    • Heavy Hexagon Nut for Cummins 4BTA



  • 6B Cylinder Head and Related Components Catalog

    Available Components for Cummins 6B Cylinder Head:

    • Cylinder Head Assembly 7mm Injector Tubes for Cummins 6B

    • Cylinder Head Assembly 9mm Injector Tubes for Cummins 6B

    • Intake Valve Kit for Cummins 6B

    • Exhaust Valve Kit for Cummins 6B

    • Cylinder Head Bolt 70mm for Cummins 6B

    • Cylinder Head Bolt 120mm for Cummins 6B

    • Upper Gasket Set for Cummins 6B

    • Upper Gasket Kit for Cummins 6B

    • Valve Spring for Cummins 6B

    • Exhaust Valve Spring for Cummins 6B

    • Intake Valve Insert for Cummins 6B

    • Exhaust Valve Insert for Cummins 6B

    • Intake Valve Guide for Cummins 6B

    • Exhaust Valve Guide for Cummins 6B

    • Valve Guide Seal for Cummins 6B

    • Fuel Manifold for Cummins 6B

    • New push rod for Cummins 6B

    • New heavy hexagon nut for use in Cummins 6B

    • Temperature switch for Cummins 6B engine

     

  • 6BT Cylinder Head and Related Components Catalog

    Available Components for Cummins 6BT Cylinder Head:

    • Cylinder Head Assembly 7mm Injector Tubes for Cummins 6BT 

    • Cylinder Head Assembly 9mm Injector Tubes for Cummins 6BT 

    • Intake Valve Kit for Cummins 6BT 

    • Exhaust Valve Kit for Cummins 6BT 

    • Cylinder Head Bolt 70mm for Cummins 6BT 

    • Cylinder Head Bolt 120mm for Cummins 6BT 

    • Upper Gasket Set for Cummins 6BT 

    • Upper Gasket Kit for Cummins 6BT 

    • New gasket for the valve cover of Cummins 6BT 

    • Valve Spring for Cummins 6BT 

    • Intake Valve Insert for Cummins 6BT 

    • Exhaust Valve Insert for Cummins 6BT 

    • Intake Valve Guide for Cummins 6BT 

    • Exhaust Valve Guide for Cummins 6BT 

    • Valve Guide Seal for Cummins 6BT 

    • Push Rod Cover Gasket for Cummins 6BT 

    • Fuel Manifold for Cummins 6BT 

    • Push Rod for Cummins 6BT 

    • Heavy Hexagon Nut for Cummins 6BT 

    • Temperature switch for Cummins 6BT engines

     

  • 6BTA Cylinder Head and Related Components Catalog


    Available Components for Cummins 6BTA Cylinder Head:

    • Cylinder Head Assembly 7mm Injector Tubes for Cummins 6BTA 

    • Cylinder Head Assembly 9mm Injector Tubes for Cummins 6BTA 

    • Intake Valve Kit for Cummins 6BTA 

    • Exhaust Valve Kit for Cummins 6BTA 

    • Cylinder Head Bolt 70mm for Cummins 6BTA 

    • Cylinder Head Bolt 120mm for Cummins 6BTA 

    • Upper Gasket Set for Cummins 6BTA 

    • Upper Gasket Kit for Cummins 6BTA 

    • New gasket for the valve cover of Cummins 6BTA 

    • Valve Spring for Cummins 6BTA 

    • Intake Valve Insert for Cummins 6BTA 

    • Exhaust Valve Insert for Cummins 6BTA 

    • Intake Valve Guide for Cummins 6BTA 

    • Exhaust Valve Guide for Cummins 6BTA 

    • Valve Guide Seal for Cummins 6BTA 

    • Push Rod Cover Gasket for Cummins 6BTA 

    • Push Rod for Cummins 6BTA 

    • Heavy Hexagon Nut for Cummins 6BTA 

    • Temperature switch for Cummins 6BTA engine

     

  • ISB Cylinder Head and Related Components Catalog

    • ISB 4.5L Cylinder Head & Related Components

      Available Components for Cummins ISB 4.5L Cylinder Head:

      • Intake Valve for Cummins ISB 4.5L

      • Exhaust Valve Kit for Cummins ISB 4.5L

      • Exhaust Valve for Cummins ISB 4.5L

      • Insert, Exhaust Valve for Cummins ISB 4.5L

      • Cylinder Head Bolt 70mm for Cummins ISB 4.5L

      • Insert, Intake Valve for Cummins ISB 4.5L

      • Cylinder Head Bolt for Cummins ISB 4.5L

      • Upper Gasket Set for Cummins ISB 4.5L

      • Valve Cover Gasket for Cummins ISB 4.5L

      • Intake Valve Seal for Cummins ISB 4.5L

      • Intake and Exhaust Valve Seal for Cummins ISB 4.5L

      • Valve Spring for Cummins 4BT 3.9, 6BT 5.9, ISB, and QSB Engines

      • Temperature Switch for Cummins ISB 4.5L

      • Fuel Manifold for Cummins ISB 4.5L  Engine

    • ISB 5.9L Cylinder Head & Related Components

      • Cylinder Head for Cummins ISB 5.9L

      • Intake Valve for Cummins ISB 5.9L

      • Exhaust Valve Kit for Cummins ISB 5.9L

      • Exhaust Valve for Cummins ISB 5.9L

      • Insert, Exhaust Valve for Cummins ISB 5.9L

      • Cylinder Head Bolt 70mm for Cummins ISB 5.9L

      • Insert, Intake Valve for Cummins ISB 5.9L

      • Cylinder Head Bolt for Cummins ISB 5.9L

      • Upper Gasket Set for Cummins ISB 5.9L

      • Valve Cover Gasket for Cummins ISB 5.9L

      • Intake Valve Seal for Cummins ISB 5.9L

      • Intake and Exhaust Valve Seal for Cummins ISB 5.9L

      • Valve Spring for Cummins 4BT 3.9, 6BT 5.9, ISB, and QSB Engines

      • Temperature Switch for Cummins ISB 5.9L

      • Fuel Manifold for Cummins ISB 5.9L Engine

    • ISB 6.7 Cylinder Head & Related Components

      • Cylinder Head for Cummins 6.7L

      • Intake Valve for Cummins ISB 6.7L

      • Exhaust Valve Kit for Cummins ISB 6.7L

      • Exhaust Valve for Cummins ISB 6.7L

      • Insert, Exhaust Valve for Cummins ISB 6.7L

      • Cylinder Head Bolt 70mm for Cummins ISB 6.7L

      • Insert, Intake Valve for Cummins ISB 6.7L

      • Cylinder Head Bolt for Cummins ISB 6.7L

      • Upper Gasket Set for Cummins ISB 6.7L

      • Valve Cover Gasket for Cummins ISB 6.7L

      • Intake Valve Seal for Cummins ISB 6.7L

      • Intake and Exhaust Valve Seal for Cummins ISB 6.7L

      • Valve Spring for Cummins 4BT 3.9, 6BT 5.9, ISB, ISB 6.7L, and QSB Engines

      • Temperature Switch for Cummins ISB 6.7L

      • Fuel Manifold for Cummins ISB 6.7L Engine

       

  • QSB Cylinder Head and Related Components Catalog

    • QSB 4.5L Cylinder Head & Related Components

      • Cylinder Head for Cummins QSB 4.5L

      • Intake Valve for Cummins QSB 4.5L

      • Intake Valve Kit for Cummins QSB 4.5L

      • Exhaust Valve Kit for Cummins QSB 4.5L

      • Exhaust Valve for Cummins QSB 4.5L

      • Insert, Exhaust Valve for Cummins QSB 4.5L

      • Cylinder Head Bolt 70mm for Cummins QSB 4.5L

      • Insert, Intake Valve for Cummins QSB 4.5L

      • Cylinder Head Bolt for Cummins QSB 4.5L

      • Upper Gasket Set for Cummins QSB 4.5L

      • Valve Cover Gasket for Cummins QSB 4.5L

      • Intake Valve Seal for Cummins QSB 4.5L

      • Intake and Exhaust Valve Seal for Cummins QSB 4.5L

      • Valve Spring for Cummins QSB 4.5L

      • Temperature Switch for Cummins engines

       

    • QSB 5.9L Cylinder Head & Related Components

      • Cylinder Head for Cummins QSB 5.9L

      • Intake Valve for Cummins QSB 5.9L

      • Exhaust Valve Kit for Cummins QSB 5.9L

      • Exhaust Valve for Cummins QSB 5.9L

      • Insert, Exhaust Valve for Cummins QSB 5.9L

      • Cylinder Head Bolt 70mm for Cummins QSB 5.9L

      • Insert, Intake Valve for Cummins QSB 5.9L

      • Cylinder Head Bolt for Cummins QSB 5.9L

      • Upper Gasket Set for Cummins QSB 5.9L

      • Valve Cover Gasket for Cummins QSB 5.9L

      • Intake Valve Seal for Cummins QSB 5.9L

      • Intake and Exhaust Valve Seal for Cummins QSB 5.9L

      • Valve Spring for Cummins QSB 5.9L

      • Temperature Switch for Cummins engines

       

    • QSB 6.7L Cylinder Head & Related Components

      • Cylinder Head for Cummins QSB 6.7L

      • Intake Valve for Cummins QSB 6.7L

      • Exhaust Valve Kit for Cummins QSB 6.7L

      • Exhaust Valve for Cummins QSB 6.7L

      • Insert, Exhaust Valve for Cummins QSB 6.7L

      • Cylinder Head Bolt 70mm for Cummins QSB 6.7L

      • Insert, Intake Valve for Cummins QSB 6.7L

      • Cylinder Head Bolt for Cummins QSB 6.7L

      • Upper Gasket Set for Cummins QSB 6.7L

      • Valve Cover Gasket for Cummins QSB 6.7L

      • Intake Valve Seal for Cummins QSB 6.7L

      • Intake and Exhaust Valve Seal for Cummins QSB 6.7L

      • Valve Spring for Cummins QSB 6.7L

      • Temperature Switch for Cummins engines

       

    • QSB 7L Cylinder Head & Related Components

      • Cylinder Head for Cummins QSB 7.0L

      • Intake Valve for Cummins QSB 7.0L

      • Exhaust Valve Kit for Cummins QSB 7.0L

      • Exhaust Valve for Cummins QSB 7.0L

      • Insert, Exhaust Valve for Cummins QSB 7.0L

      • Cylinder Head Bolt 70mm for Cummins QSB 7.0L

      • Insert, Intake Valve for Cummins QSB 7.0L

      • Cylinder Head Bolt for Cummins QSB 7.0L

      • Upper Gasket Set for Cummins QSB 7.0L

      • Valve Cover Gasket for Cummins QSB 7.0L

      • Intake Valve Seal for Cummins QSB 7.0L

      • Intake and Exhaust Valve Seal for Cummins QSB 7.0L

      • Valve Spring for Cummins QSB 7.0L

      • Temperature Switch for Cummins engines

Cylinder Head Catalog For C Series: 6C, 6CT, 6CTA, ISC, QSC

Cummins C Series engines serve as mid-range workhorses in marine propulsion and heavy-duty industrial systems. The 6CTA is especially popular in high-speed commercial vessels.

Key Features:

  • Mechanical and electronic control options

  • High torque and reliable fuel delivery

  • Complete head assemblies and individual top-end components available

  • Ideal for long-duty cycle use in tough environments

Common Applications:

  • Passenger ferries

  • Crabbing and lobster boats

  • Agricultural irrigation systems

  • Industrial firefighting pumps

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • 6C Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins 6C

    • Intake Valve for Cummins 6C

    • Exhaust Valve for Cummins 6C

    • Valve Spring for Cummins 6C

    • Cylinder Head Bolt for Cummins 6C

    • Upper Gasket Set Standard for Cummins 6C

    • Insert, Intake Valve for Cummins 6C

    • Insert, Exhaust Valve for Cummins 6C

    • Valve Cover Gasket for Cummins 6C

    • Intake Connection Gasket for Cummins 6C

    • Head Gasket Standard for Cummins 6C

    • Temperature Switch for Cummins engines

    • Push Rod for Cummins 6C

    • Valve Guide for Cummins 6C

    • Steam Valve Seal for Cummins 6C

    • Gear Cover Gasket for Cummins 6C

    • Gear Housing Gasket for Cummins 6C

    • Heavy Hexagon Nut for Cummins 6C

     

  • 6CT Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins 6CT

    • Intake Valve for Cummins 6CT

    • Exhaust Valve for Cummins 6CT

    • Valve Spring for Cummins 6CT

    • Cylinder Head Bolt for Cummins 6CT

    • Upper Gasket Set Standard for Cummins 6CT

    • Insert, Intake Valve for Cummins 6CT

    • Insert, Exhaust Valve for Cummins 6CT

    • Valve Cover Gasket for Cummins 6CT

    • Intake Connection Gasket for Cummins 6CT

    • Head Gasket Standard for Cummins 6CT

    • Temperature Switch for Cummins engines

    • Push Rod for Cummins 6CT

    • Valve Guide for Cummins 6CT

    • Steam Valve Seal for Cummins 6CT

    • Gear Cover Gasket for Cummins 6CT

    • Gear Housing Gasket for Cummins 6CT

    • Heavy Hexagon Nut for Cummins 6CT

     

  • 6CTA Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins 6CTA

    • Intake Valve for Cummins 6CTA

    • Exhaust Valve for Cummins 6CTA

    • Valve Spring for Cummins 6CTA

    • Cylinder Head Bolt for Cummins 6CTA

    • Upper Gasket Set Standard for Cummins 6CTA

    • Insert, Intake Valve for Cummins 6CTA

    • Insert, Exhaust Valve for Cummins 6CTA

    • Valve Cover Gasket for Cummins 6CTA

    • Intake Connection Gasket for Cummins 6CTA

    • Head Gasket Standard for Cummins 6CTA

    • Temperature Switch for Cummins engines

    • Push Rod for Cummins 6CTA

    • Valve Guide for Cummins 6CTA

    • Steam Valve Seal for Cummins 6CTA

    • Gear Housing Gasket for Cummins 6CTA

    • Heavy Hexagon Nut for Cummins 6CTA

     

  • ISC Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins ISC

    • Intake Valve Kit for Cummins ISC

    • Exhaust Valve for Cummins ISC

    • Valve Spring for Cummins ISC

    • Cylinder Head Bolt for Cummins ISC

    • Upper Gasket Set Standard for Cummins ISC

    • Upper Gasket Set for Cummins ISC

    • Insert, Intake Valve for Cummins ISC

    • Insert, Exhaust Valve for Cummins ISC

    • Intake Connection Gasket for Cummins ISC

    • Valve Spring Retainer for Cummins ISC

    • Temperature Switch for Cummins engines

    • Valve Guide for Cummins ISC

    • Valve Guide Seal for Cummins ISC

  • QSC Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins QSC

    • Intake Valve Kit for Cummins QSC

    • Exhaust Valve for Cummins QSC

    • Valve Spring for Cummins QSC

    • Cylinder Head Bolt for Cummins QSC

    • Upper Gasket Set Standard for Cummins QSC

    • Lower Gasket Set for Cummins QSC

    • Insert, Intake Valve for Cummins QSC

    • Insert, Exhaust Valve for Cummins QSC

    • Intake Connection Gasket for Cummins QSC

    • Valve Spring Retainer for Cummins QSC

    • Temperature Switch for Cummins engines

    • Valve Guide for Cummins QSC

    • Valve Guide Seal for Cummins QSC

Cylinder Head Catalog For L Series: L10, ISL, QSL

Cummins L Series engines provide the next step up in power and displacement, delivering exceptional performance in both mobile and stationary operations.

Key Features:

  • Built for high-load, continuous operation

  • Designed for durability with low maintenance intervals

  • Options for industrial and marine compliance

  • Electronically managed variants available

Common Applications:

  • Marine hydraulic systems

  • Dredging vessels

  • Municipal water systems

  • Industrial power units

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • L10 Cylinder Head and Related Components Catalog

    • Intake Valve for Cummins L10

    • Exhaust Valve for Cummins L10

    • Injector Tube for Cummins L10

    • Valve Spring for Cummins L10

    • Injector Tube O-Ring Seal for Cummins L10

    • Cylinder Head Bolt for Cummins L10

    • Upper Gasket Set for Cummins L10

    • Valve Guide for Cummins L10

    • Insert, Intake and Exhaust Valve for Cummins L10

    • Temperature Switch for Cummins engines

    • Valve Seal for Cummins L10

    • Rocker Cover Gasket for Cummins L10

    • Rocker Cover Housing Gasket for Cummins L10

    • Heavy Hexagon Nut for Cummins L10

     

  • ISL Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins ISL

    • Intake Valve for Cummins ISL

    • Exhaust Valve for Cummins ISL

    • Valve Spring for Cummins ISL

    • Cylinder Head Bolt for Cummins ISL

    • Upper Gasket Set for Cummins ISL

    • Upper Gasket Set Standard for Cummins ISL

    • Insert, Intake Valve for Cummins ISL

    • Insert, Exhaust Valve for Cummins ISL

    • Temperature Switch for Cummins engines

    • Valve Cover Gasket for Cummins ISL

     

  • QSL Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins QSL

    • Intake Valve for Cummins QSL

    • Exhaust Valve for Cummins QSL

    • Valve Spring for Cummins QSL

    • Cylinder Head Bolt for Cummins QSL

    • Upper Gasket Set for Cummins QSL

    • Insert, Intake Valve for Cummins QSL

    • Insert, Exhaust Valve for Cummins QSL

    • Temperature Switch for Cummins engines

    • Valve Cover Gasket for Cummins QSL

Cylinder Head Catalog For M Series: M11, ISM, QSM

Cummins M Series engines are high-output powerplants used in marine propulsion and heavy-duty industrial systems requiring sustained horsepower.

Key Features:

  • Robust castings with precision-machined surfaces

  • Designed for top-end and full-engine rebuilds

  • Suitable for turbocharged and aftercooled configurations

  • Available for both mechanical and electronic versions

Common Applications:

  • Tugboats and offshore vessels

  • Ferries and cargo support boats

  • High-horsepower pumps and power units

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • M11 Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins M11

    • Intake Valve for Cummins M11

    • Exhaust Valve for Cummins M11

    • Injector Tube for Cummins M11

    • Valve Spring for Cummins M11

    • Injector Tube O-Ring Seal for Cummins M11

    • Cylinder Head Bolt for Cummins M11

    • Upper Gasket Set for Cummins M11

    • Valve Guide for Cummins M11

    • Insert, Intake and exhaust Valve for Cummins M11

    • Temperature Switch for Cummins engines

    • Valve Guide Seal for Cummins M11

    • Valve Seal for Cummins M11

    • Rocker Cover Gasket for Cummins M11

    • Rocker Cover Housing Gasket for Cummins M11

     

  • ISM Cylinder Head and Related Components Catalog


    • Cylinder Head for Cummins ISM

    • Intake Valve for Cummins ISM

    • Exhaust Valve for Cummins ISM

    • Valve Spring for Cummins ISM

    • Cylinder Head Bolt for Cummins ISM

    • Upper Gasket Set for Cummins ISM

    • Valve Guide for Cummins ISM

    • Insert Intake and Exhaust Valve for Cummins ISM

    • Temperature Switch for Cummins engines

    • Valve Guide Seal for Cummins ISM

    • Rocker Cover Gasket for Cummins ISM

    • Rocker Cover Housing Gasket for Cummins ISM

     

  • QSM11 Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins QSM

    • Intake Valve for Cummins QSM

    • Exhaust Valve for Cummins QSM

    • Valve Spring for Cummins QSM

    • Cylinder Head Bolt for Cummins QSM

    • Upper Gasket Set for Cummins QSM

    • Valve Guide for Cummins QSM

    • Insert Intake and Exhaust Valve for Cummins QSM

    • Temperature Switch for Cummins engines

    • Valve Guide Seal for Cummins QSM

    • Rocker Cover Gasket for Cummins QSM

    • Rocker Cover Housing Gasket for Cummins QSM

     

Cylinder Head Catalog For N Series: NH855, NT855, N14

The legendary N Series remains a staple in marine, construction, and oilfield applications thanks to its long service life and rebuild-friendly design.

Key Features:

  • Large displacement and heavy-duty top-end systems

  • Cylinder heads engineered for high compression and long duty cycles

  • Wet and dry cylinder configurations supported

  • Parts compatible with legacy CPLs

Common Applications:

  • Tugboats and barge propulsion

  • Oilfield generators

  • High-capacity water pumps

  • Marine auxiliary systems

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • NH855 Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins NH855

    • Intake Valve for Cummins NH855

    • Exhaust Valve for Cummins NH855

    • Injector Tube for Cummins NH855

    • Valve Spring for Cummins NH855

    • Valve Seal for Cummins NH855

    • Injector Tube O-Ring Seal for Cummins NH855

    • Cylinder Head Bolt for Cummins NH855

    • Upper Gasket Set for Cummins NH855

    • Valve Guide for Cummins NH855

    • Valve Insert for Cummins NH855

    • Rocker Cover for Cummins NH855

    • Heavy Hexagon Nut for Cummins NH855

    • Pushrod for Cummins Valve Rocker for NH855

    • Pushrod for Cummins Injector Rocker for NH855

    • Temperature Switch for Cummins engines

    • Valve Cover Gasket for Cummins NH855



  • NT855 Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins NT855

    • Intake Valve for Cummins NT855

    • Exhaust Valve for Cummins NT855

    • Injector Tube for Cummins NT855

    • Valve Spring for Cummins NT855

    • Valve Seal for Cummins NT855

    • Injector Tube O-Ring Seal for Cummins NT855

    • Cylinder Head Bolt for Cummins NT855

    • Upper Gasket Set for Cummins NT855

    • Valve Guide for Cummins NT855

    • Valve Insert for Cummins NT855

    • Rocker Cover for Cummins NT855

    • Heavy Hexagon Nut for Cummins NT855

    • Pushrod for Cummins Valve Rocker for NT855

    • Pushrod for Cummins Injector Rocker for NT855

    • Temperature Switch for Cummins engines

    • Valve Cover Gasket for Cummins NT855

     

  • N14 Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins N14

    • Intake Valve for Cummins N14

    • Exhaust Valve for Cummins N14

    • Injector Tube for Cummins N14

    • Valve Spring for Cummins N14

    • Injector Tube O-Ring Seal for Cummins N14

    • Cylinder Head Bolt for Cummins N14

    • Upper Gasket Set for Cummins N14

    • Valve Guide for Cummins N14

    • Piston Cooling Nozzle for Cummins N14

    • Insert Intake Valve for Cummins N14

    • Insert Exhaust Valve for Cummins N14

    • Steam Valve Seal for Cummins N14

    • Temperature Switch for Cummins engines

     

Cylinder Head Catalog For X Series: ISX, QSX

Cummins X Series engines combine high power with advanced emissions systems, making them suitable for modern marine and industrial operations requiring clean, dependable output.

Key Features:

  • Designed for high-efficiency combustion

  • Cylinder heads compatible with EGR, DPF, and SCR systems

  • Engineered for emissions compliance and performance

  • Ideal for newer fleets and replacement programs

Common Applications:

  • Patrol and security boats

  • Military-grade transport

  • Modern offshore and port applications

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • ISX Cylinder Head and Related Components Catalog

    • Cylinder Head & Related Components For ISX Single Cam

    • Cylinder Head & Related Components For ISX Dual Cam


      • Cylinder Head for Cummins ISX

      • Intake Valve for Cummins ISX

      • Exhaust Valve for Cummins ISX

      • Injector Tube Kit for Cummins ISX

      • Injector Tube O-Ring Seal for Cummins ISX

      • Cylinder Head Bolt Kit for Cummins ISX

      • Upper Gasket Set for Cummins ISX

      • Valve Guide for Cummins ISX

      • Intake Valve Insert for Cummins ISX

      • Exhaust Valve Insert for Cummins ISX

      • Temperature Switch for Cummins ISX

      • Valve Cover Gasket for Cummins ISX

      • Vibration and Noise Isolator for Cummins ISX

      • Valve Seal for Cummins ISX

       

  • QSX Cylinder Head and Related Components Catalog

    • Cylinder Head for Cummins QSX

    • Intake Valve for Cummins QSX

    • Exhaust Valve for Cummins QSX

    • Injector Tube Kit for Cummins QSX

    • Injector Tube O-Ring Seal for Cummins QSX

    • Cylinder Head Bolt Kit for Cummins QSX

    • Upper Gasket Set for Cummins QSX

    • Valve Guide for Cummins QSX

    • Intake Valve Insert for Cummins QSX

    • Exhaust Valve Insert for Cummins QSX

    • Temperature Switch for Cummins QSX

    • Valve Cover Gasket for Cummins QSX

    • Vibration and Noise Isolator for Cummins QSX

    • Valve Seal for Cummins QSX

Cylinder Head Catalog For K Series: KTA19, KTA38, KTA50, QSK19

Cummins K and QSK Series engines are high-horsepower machines built for major marine propulsion, commercial hauling, and industrial support platforms.

Key Features:

  • Cast for structural stability and extreme thermal load

  • Cylinder heads available for 6-, 12-, and 16-cylinder applications

  • Built to support heavy turbocharging and electronic fuel control

  • Ideal for continuous-use power operations

Common Applications:

  • Drill ships and offshore oil rigs

  • Ocean-going tugs

  • Remote mine and gas site generators

  • Floating platforms and supply vessels

Cylinder head–related components may include injector sleeves, valves, valve springs, retainers, locks, head gaskets, head bolts, rocker assemblies, push rods, and in some cases, mating components such as camshafts and thermostats.

Cylinder Head and Related Components Catalog for the Following Engine Models:

  • KTA19 Cylinder Head and Related Components Catalog

    KTA38 Cylinder Head and Related Components Catalog

  • KTA50 Cylinder Head and Related Components Catalog

  • QSK19 Cylinder Head and Related Components Catalog

  • Cylinder Head for Cummins KTA19, KTA38, KTA50, QSK19

  • Cylinder Head Bolt for Cummins KTA series

  • Roller for Injector Cam Follower for Cummins K19, K38, K50

  • Pin for Injector Cam Follower Roller for Cummins K19, K38, K50

  • Intake Valve Kit for Cummins K19, K38, K50 engines

  • Exhaust Valve Kit for Cummins K19, K38, K50 engines

  • Valve Guide for Cummins QSK19, K19, K38, K50 engines 

  • Exhaust Valve Kit for Cummins KTA & QSK engines 

  • Crosshead Bracket for valves for Cummins K19, K38, K50, QSK19

  • Insert, Exhaust Valve for Cummins K series engines

  • Insert, Intake Valve for Cummins K series 

  • Upper Gasket Set 

  • Spring Valve for Cummins K series engines 

  • Retainer for Valve Spring for Cummins K series 

  • Head Gasket for Cummins KTA19, KTA38, KTA50, QSK19 

  • Guide for Valve Spring for K series for Cummins

  • Valve Rotator for K Series engines for Cummins

  • Cam Follower Cover Gasket for Cummins K series 

  • Rocker Lever Cover Gasket for Cummins K series 

  • Rocker Lever Housing Gasket for K19, K38, K50 for Cummins

  • Heavy Hexagon Nut for Cummins K series 

  • Push Rod for Valve Rocker for Cummins K series

  • Push Rod for Injector Rocker for Cummins K series 

  • Roller for Valve Cam Follower for Cummins K19, K38, K50

  • Temperature Switch for Cummins engines

    Frequently Asked Questions – Cummins Cylinder Heads & Related Components

General Questions About Cylinder Heads

  1. What is the function of a cylinder head in a Cummins diesel engine?
    The cylinder head forms the upper part of the combustion chamber and houses essential components such as valves, valve springs, and fuel injectors. It plays a critical role in air intake, exhaust flow, fuel delivery, and combustion sealing.

  2. What are the symptoms of a failing or cracked cylinder head?
    Symptoms include white exhaust smoke, engine overheating, coolant loss, misfiring, oil in the coolant, and loss of compression.

  3. Are Diesel Pro Power’s cylinder heads genuine Cummins parts?
    No, we sell high-quality aftermarket cylinder heads manufactured with top-grade materials that meet or exceed OEM specifications.

  4. Do you sell both bare and complete cylinder heads?
    No. All Cummins cylinder heads we offer come fully assembled with valves and valve springs installed. We do not sell bare heads.

  5. Are rocker arms included with the cylinder head?
    No. Rocker arms are sold separately and are not included with any Cummins cylinder head.

  6. Can I install a new cylinder head myself?
    If you have diesel engine repair experience and the correct tools, yes. Be sure to follow torque specs and service procedures closely.

  7. How do I know which cylinder head fits my Cummins engine?
    Identify your engine model and CPL (Control Parts List) number or serial number. If you need help, contact us and our team will confirm the correct head.

  8. What tools are required to install a Cummins cylinder head?
    A torque wrench, head bolt socket, alignment tools, feeler gauge, and possibly valve adjustment tools, depending on the model.

  9. Should I replace the head bolts when changing the cylinder head?
    Yes. Cummins uses torque-to-yield bolts which must be replaced during installation to ensure a proper seal.

  10. Can a warped cylinder head be resurfaced?
    In some cases, yes, but only within factory tolerance limits. Severely warped or cracked heads should be replaced entirely.

Model-Specific Cylinder Head FAQs

  1. Do you offer cylinder heads for the Cummins 4B and 4BT engines?
    Yes. We offer fully assembled cylinder heads with valves and springs installed for both marine and industrial 4B and 4BT models.

  2. Are cylinder heads for the 6BT and 6BTA interchangeable?
    Not always. 6BTA heads may have additional ports and coolant passages due to the aftercooler setup. Confirm your CPL before ordering.

  3. Do you carry heads for the QSB and ISB marine engines?
    Yes. We carry cylinder heads specifically for QSB and ISB models used in marine generator and propulsion applications.

  4. Do you sell cylinder heads for the Cummins 6CTA 8.3 engine?
    Yes. We stock complete heads for both recreational and commercial marine versions of the 6CTA, including common CPL configurations.

  5. What’s the difference between 6CTA and QSC cylinder heads?
    QSC heads are designed for electronic fuel systems and may include sensor ports not found on mechanical 6CTA heads.

  6. Are ISC and ISL cylinder heads interchangeable?
    Not directly. While similar, ISC and ISL heads have variations in coolant routing and emissions systems that require matching components.

  7. Do you sell cylinder heads for L10 engines?
    Yes. We provide heads and top-end components for the Cummins L10 engine used in marine and heavy industrial equipment.

  8. Are QSL heads available for marine use?
    Yes. Our catalog includes QSL cylinder heads suited for marine and stationary power units, built with corrosion-resistant features.

  9. Can I get a cylinder head for a Cummins M11 engine?
    Absolutely. We stock complete M11 cylinder heads, compatible with many CPL numbers used in commercial and marine fleets.

  10. What’s the difference between an M11 and QSM11 cylinder head?
    QSM11 heads support electronic controls and have different configurations compared to older M11 mechanical heads.

Cylinder Head Installation and Maintenance

  1. Are valve springs already installed in your cylinder heads?
    Yes. All Cummins cylinder heads from Diesel Pro Power come fully assembled with valves and valve springs installed.

  2. Do I need to install injector sleeves separately?
    No. Injector sleeves come pre-installed in our complete cylinder heads unless otherwise noted.

  3. Are head gaskets included with the cylinder head?
    No. Head gaskets are sold separately but are available as part of our top-end gasket kits.

  4. Do you offer torque specs for head installation?
    Yes. Contact us with your CPL number and we’ll provide the correct torque values.

  5. What causes a cylinder head to fail?
    Overheating, improper torqueing, poor coolant maintenance, and long service intervals are common causes.

  6. Can I reuse my old rocker arms with a new head?
    If they’re in good condition, yes. But for best results, inspect and consider replacing them with new components.

  7. Do cylinder heads require valve lash adjustment after installation?
    Yes. After installation, a valve lash adjustment is necessary to ensure proper operation.

  8. What fluids can damage a cylinder head?
    Contaminated coolant, incorrect oil types, or fuel leaks can corrode or damage the head’s sealing surfaces.

  9. Do I need a special gasket for marine engines?
    Some marine engines require high-performance or corrosion-resistant gaskets. Check compatibility before installing.

  10. How long does a Cummins cylinder head last?
    With proper maintenance, Cummins heads typically last 10,000 to 20,000 hours or more.

Ordering, Shipping & Warranty FAQs

  1. How fast do you ship Cummins cylinder heads?
    We ship most orders within 24 hours, including international orders with taxes and duties prepaid.

  2. Do you offer international shipping?
    Yes. We ship worldwide and offer expedited delivery with customs handling included.

  3. Can I return a cylinder head if it doesn’t fit?
    Yes, as long as it’s unused and in original condition. Contact our support team to start the return.

  4. What warranty comes with your cylinder heads?
    All of our Cummins cylinder heads come with a 1 year full product warranty against material or manufacturing defects.

  5. Can I pay via wire transfer?
    Yes. We accept wire transfers upon request, along with major credit cards and secure checkout.

  6. Do you offer fleet or wholesale discounts on cylinder heads?
    No. At Diesel Pro Power, we always show our best price up front. There are no hidden markups or special pricing tiers—everyone gets our most competitive rate.

  7. Do I need to pay import duties on international orders?
    No. You can choose to prepay all import duties and taxes during checkout, which speeds up delivery and avoids delays at customs.

  8. Will I receive tracking for my order?
    Yes. Once your order ships, you'll receive an email with a tracking number and shipping confirmation.

  9. Are cylinder heads packaged to prevent damage during shipping?
    Yes. We use reinforced, impact-resistant packaging and internal cushioning to ensure your cylinder head and components arrive safely.

  10. Can I get help choosing the right cylinder head before ordering?
    Absolutely. Our diesel engine experts are available by phone, email, or live chat to help you confirm compatibility based on your engine model or CPL number.

Advanced Technical & Compatibility FAQs

41. Do you carry marine-rated cylinder heads for the Cummins KTA19 engine?
Yes. We carry KTA19 cylinder heads suitable for both marine and industrial use, built with top-grade materials and corrosion-resistant properties.

42. Do QSK19 engines use the same cylinder head as KTA19 engines?
No. While similar in displacement, QSK engines are electronically controlled and require cylinder heads with different casting features, sensor ports, and coolant routing.

43. Do you carry cylinder heads compatible with Tier 3 and Tier 4 compliant Cummins engines?
Yes. Many of our cylinder heads are compatible with Tier 3–certified engines, and select models are available for Tier 4 applications. Contact us for verification.

44. What is the difference between a cast iron and aluminum cylinder head?
Cummins cylinder heads are typically made from cast iron due to their superior strength and heat resistance. Aluminum heads are more common in automotive gas engines and are not used in heavy-duty Cummins diesel applications.

45. Can a damaged injector sleeve cause white smoke from the exhaust?
Yes. Cracked or leaking injector sleeves can allow coolant to enter the combustion chamber, resulting in white smoke and potential coolant loss.

46. Are cylinder heads different between marine propulsion and marine auxiliary engines?
They can be. Differences may include corrosion protection, coolant routing, and sensor configurations depending on the specific application.

47. Can I upgrade a mechanical Cummins engine to use an electronically controlled head?
No. Electronic heads require complete ECM, wiring harness, and sensor integrations, which are not interchangeable with mechanical fuel systems.

48. Where can I find my Cummins engine's CPL number?
Your CPL number is stamped on the dataplate located on the side of the engine block. If it’s missing, your engine’s serial number can also help us determine the correct part.

49. What if I don’t see my engine model listed on your website?
Contact us directly. We likely carry the parts or can source them through our extended supplier network, even if they're not currently listed online.

50. Can Diesel Pro Power confirm part compatibility using my engine’s serial number?
Yes. Our customer service team can verify cylinder head compatibility using either your engine’s serial number or CPL number—just reach out before placing your order.

+
URL Copied Send Quote