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Engine Parts For Cummins QSM11 Marine & Industrial Engines

Engine Specifications for Cummins QSM11

The Cummins QSM11 is a high-performance, 10.8-liter diesel engine engineered to provide excellent torque, power density, and long-life durability. Built for marine and industrial applications, the QSM11 delivers smooth operation and high fuel efficiency through a fully electronic fuel system and advanced engine controls.

Key Specifications:

  • Engine Model: Cummins QSM11

  • Displacement: 10.8 liters (661 cubic inches)

  • Configuration: Inline 6-cylinder

  • Power Output: 290–715 HP

  • Fuel System: High-pressure electronic common rail

  • Aspiration: Turbocharged and aftercooled

  • Cooling: Heat exchanger (marine) or radiator-cooled (industrial)

  • Emissions: Meets IMO Tier II / EPA Tier 2 for marine; Tier 3 for off-highway

  • Manufacturing Facility: Cummins Jamestown Engine Plant (JEP) & other global sites

Marine and Industrial Applications of the Cummins QSM11

The QSM11 is designed to operate in harsh environments where uptime and reliability are paramount. Its balance of power, quiet operation, and minimal vibration make it a go-to choice for operators around the world.

Marine Applications

  • Commercial fishing vessels

  • Pilot and crew boats

  • Utility and tug boats

  • Yacht support vessels

  • Marine generator sets

Industrial Applications

  • Oil and gas drilling platforms

  • Construction equipment (cranes, compactors, etc.)

  • Water pumps and irrigation systems

  • Power generation and gensets

  • Heavy-duty material handling equipment

Cummins QSM11 Parts Catalog

Diesel Pro Power carries a comprehensive selection of Cummins QSM11 engine parts, built to meet OEM standards and optimized for marine and industrial environments. All parts are in stock and ship worldwide within 24 hours.

Overhaul Kits for Cummins QSM11

Our complete engine overhaul kits are engineered to restore your QSM11 engine to peak operating condition. These kits are ideal for scheduled rebuilds, failure recoveries, or power restorations. Each kit includes premium components designed for durability in high-load conditions.

Available options include:

  • Complete engine rebuild kits, with matched pistons, rings, liners, bearings, and all critical seals and gaskets

  • Top-end kits for cylinder head and valve-related restoration

  • Bottom-end kits for rotating assembly and block-level repair

  • Piston kits (matched by size and configuration: standard and oversized)

  • Ring sets, with high-temperature, oil-control, and compression rings

  • Upper and lower gasket sets, sold individually or bundled with overhaul kits

All kits are available for CELECT and CELECT Plus fuel system configurations. Contact us with your engine serial number to confirm fitment.

Cylinder Heads and Valvetrain Components for Cummins QSM11

Our QSM11 cylinder heads are remanufactured or new, pressure-tested, and built for long service intervals. We offer options for complete head replacement or individual valve train component rebuilds.

Available components include:

  • Complete cylinder heads (with or without valves and springs)

  • Valvetrain rebuild kits, including valve springs, guides, seals, locks, and retainers

  • Rockers, bridges, and push rods, all wear-resistant and matched for OEM spec geometry

  • Injector crossheads, tappets, and valve adjusting screws

  • Cylinder head bolt kits, torque-to-yield rated for safe and secure installation

  • Valve cover gaskets, cover plates, and sealing hardware

  • Head gaskets, with marine- and industrial-grade composite layers

All heads are compatible with CELECT and CELECT Plus electronic systems and meet OEM compression and combustion chamber volume specs.

Raw Water Pump Components for Cummins QSM11

The raw water pump—also called the seawater pump—is a critical part of the QSM11’s marine cooling system, responsible for drawing seawater into the heat exchanger to remove engine heat. This is essential for keeping marine engines within optimal operating temperature and preventing overheating during long-haul or high-load operation.

Diesel Pro Power supplies complete raw water pumps as well as individual service and upgrade parts designed specifically for QSM11 marine applications.

Available components include:

  • Raw water pump assemblies, corrosion-resistant and marine-rated

  • Impeller kits with wear plates, gaskets, and shafts

  • Zinc anodes and fittings, for corrosion prevention in saltwater environments

  • Pump seals and seal repair kits

  • Basket strainers, intake screens, and mounting hardware

  • Inlet and outlet hoses compatible with common marine hose diameters

  • Pump pulley kits and belt alignment guides

Whether replacing a worn pump or rebuilding your existing unit, our raw water pump components are compatible with QSM11 heat exchanger systems used in tugs, trawlers, workboats, and support vessels.

Freshwater Pump Components for Cummins QSM11

The freshwater pump—also known as the coolant circulation pump—pushes coolant throughout the engine block, cylinder head, and turbocharger system. This is a closed-loop system that relies on uninterrupted coolant flow for thermal stability, performance, and emissions control in both marine and industrial QSM11 applications.

Diesel Pro Power offers OEM-spec freshwater pumps and supporting components to maintain coolant circulation under high engine load and long-hour operation.

Available components include:

  • Freshwater pump assemblies, engineered for high-duty cycles

  • Thermostats and thermostat housings to regulate coolant temperature

  • Coolant hoses with reinforced heat-resistant liners

  • Coolant filter bases, bypass valves, and sediment screens

  • Pump seals and housing gaskets for leak-free installation

  • Radiator flush kits and descaling agents for industrial cooling maintenance

  • Flow control valves and bypass regulators

These components are suitable for stationary power generators, drilling platforms, construction machinery, and QSM11-powered equipment requiring continuous thermal control.

 

 

Gasket Sets and Seal Kits for Cummins QSM11

Diesel Pro Power supplies gasket kits and seal sets to suit every level of engine repair, from minor leak fixes to full teardowns. 

We offer:

  • Full engine gasket sets (upper and lower)

  • Top-end gasket kits including head gaskets, intake and exhaust manifold gaskets, and valve cover gaskets

  • Bottom-end kits, including oil pan gaskets, rear main seals, and front cover seals

  • Turbo, fuel system, and coolant gaskets, tailored for CELECT/CELECT Plus compatibility

  • Individual gaskets: head, intake, exhaust, valve cover, and oil pan

  • O-ring kits and sealing washers, oil-tight and coolant-safe

Each gasket set is clearly labeled for easy identification and designed for marine and industrial installations alike.

Injectors and Fuel System Components For Cummins QSM11

We stock a wide range of QSM11 common rail injectors and fuel system parts, precision-calibrated for long-term performance and emissions compliance. Whether you’re replacing a single injector or overhauling the entire rail system, we provide fast, compatible solutions.

Key components include:

  • High-pressure common rail injectors (tested and calibrated)

  • Injector seal kits, including O-rings, washers, and retainer clips

  • Fuel injection lines and clamps

  • Fuel pressure sensors and regulators

  • Lift pumps and fuel supply pumps

  • Water separators, primary and secondary fuel filters

  • Fuel filter base housings and fittings

  • Shutoff valves and solenoids

All injectors are tested for spray pattern and flow rate consistency.

Turbocharger Components for Cummins QSM11

Restore power and airflow with high-performance turbocharger parts. Diesel Pro Power supplies both direct replacements and performance-ready options for marine or industrial use.

Available parts:

  • Complete turbochargers (OEM-equivalent, high-efficiency options available)

  • Turbo gaskets for inlet/outlet sealing

  • Turbo elbow connectors and mounting flanges

  • Hump hoses in multiple diameters for secure boost path connections

  • Oil feed and drain line kits for proper turbo lubrication

  • High-temp jointing compound for leak-free turbo install

  • Mounting hardware kits (studs, clamps, nuts)

We stock turbos for both fixed and variable geometry QSM11 models. Contact us for boost specs or turbo matching assistance.

Crankshaft Components for Cummins QSM11

Maintain internal balance and engine strength with premium rotating assembly parts:

  • New or remanufactured crankshafts

  • Main bearing shell sets (standard and oversized)

  • Connecting rod bearings

  • Crankshaft seals (front and rear)

  • Crankshaft dampers, vibration balancers, and mounting bolts

Exhaust Components for Cummins QSM11

Manage backpressure and heat with replacement exhaust components:

  • Mufflers and noise-dampening accessories

  • Manifold insulation wrap

  • Manifold gaskets and exhaust flange gaskets

  • Muffler caps, stack adapters, and clamps

  • Turbo exhaust elbows and reducers

 

Why Buy Cummins QSM11 Parts from Diesel Pro Power?

24-Hour Worldwide Shipping

We ship all in-stock QSM11 parts within 24 hours of your order. Wherever your vessel or operation is located, you can count on fast delivery and reliable service.

40,000+ Satisfied Customers

Join the global community of over 40,000 satisfied customers who trust Diesel Pro Power for accurate parts, expert advice, and responsive support.

Expert Customer Service

Need help choosing a part or confirming compatibility? Call us at 1-888-433-4735 or use our online contact form for one-on-one support from a diesel engine specialist.

Prepaid Import Duties

Simplify international ordering with our prepaid import tax option at checkout. Know your total cost upfront—no surprises.

One-Year Warranty on All Parts

All QSM11 engine parts sold by Diesel Pro Power include a 1-year warranty, giving you confidence in every purchase.

Frequently Asked Questions – Cummins QSM11 Parts

Crankshaft – FAQs

  1. What crankshaft components are available for the QSM11?
    We offer complete crankshafts, main and rod bearing sets, and seal kits for both front and rear applications.

  2. How do I know if my crankshaft needs replacement?
    Signs include metal in the oil, knocking sounds, loss of oil pressure, or vibration at higher RPMs.

  3. Are bearings sold by size?
    Yes. We offer standard and oversized bearing shells. Contact us with your measurements for the correct fit.

  4. Can I replace bearings without removing the crankshaft?
    Rod bearings can be replaced with the crank in place, but main bearings typically require crankshaft removal.

  5. Is the crankshaft balanced for marine and industrial use?
    Yes. Our crankshafts are engineered for high-duty marine and industrial cycles and vibration balanced to OEM spec.

Turbocharger – FAQs (Cummins QSM11)

1. Do you offer new or reman turbos for the QSM11?

We offer high-quality aftermarket turbos built to OEM performance specifications.

2. How do I know if my turbo needs to be replaced?

Watch for black smoke, reduced boost, excessive oil near the turbo, or high-pitched whines during operation.

3. Are turbo gaskets and clamps included?

Gaskets and clamps are sold separately or as part of complete turbo installation kits.

4. Can I install a performance turbo on my QSM11?

Yes. We offer performance-compatible turbo options for select QSM11 configurations. Contact us for fitment details.

5. Do you carry turbo drain lines and oil feed lines?

Yes. We stock complete oil feed and drain line kits to support proper turbo lubrication and installation.

Gasket Sets – FAQs (Cummins QSM11)

1. What’s included in a full engine gasket set for the QSM11?

A complete gasket set includes cylinder head, rocker cover, intake/exhaust manifold, oil pan gaskets, and all essential seals and O-rings.

2. Do I need both upper and lower gasket kits for an overhaul?

Yes. A full engine overhaul typically requires both upper and lower gasket sets to properly reseal the entire engine.

3. Are marine and industrial gasket sets the same?

Yes, but some engines may have unique configurations. Please provide your engine serial number to confirm fitment.

4. Can I buy individual gaskets?

Yes. We sell individual gaskets such as head gaskets, valve cover gaskets, and manifold gaskets separately.

5. Are your gaskets heat- and oil-resistant?

Absolutely. All gaskets are made from premium materials suitable for fuel, oil, and high-temperature environments.

Pumps and Cooling – FAQs (Cummins QSM11)

1. What cooling pumps are available for the QSM11?

We offer both freshwater and seawater pumps, along with thermostats, impellers, and related components for marine and industrial cooling systems.

2. How often should I replace the seawater impeller?

Seawater impellers should be replaced every 200–300 hours or annually, depending on water conditions and usage.

3. Are thermostats and pump seals included with the pumps?

Most pumps include base gaskets, and seal kits and thermostats can be ordered separately if not included.

4. Do you carry both marine and land-based cooling components?

Yes. Our catalog supports both closed-loop (industrial) and raw water (marine) cooling configurations.

5. How do I know if my cooling pump has failed?

Look for engine overheating, coolant leaks, impeller wear, or pulley wobble—all signs a pump may need inspection or replacement.

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