Cylinder Head & Related Components for Cummins KTA 19

Cylinder head integrity is a cornerstone of performance in the Cummins KTA19 engine. The cylinder head serves as the pressure-tight cover for the combustion chamber, allowing for proper compression and optimal fuel efficiency. Without a properly functioning cylinder head, the engine’s ability to maintain power output, thermal balance, and emissions control is significantly compromised. That’s why selecting premium aftermarket parts for your Cummins KTA19 cylinder head rebuild or replacement is essential.

At Diesel Pro Power, we carry a complete range of high-quality cylinder head components for Cummins KTA19 engines. Whether you’re performing a routine top-end overhaul or addressing damage from overheating or valve failure, our inventory includes all the essential parts you need to restore your engine to peak performance.

Complete Cylinder Heads For Cummins KTA19

We offer complete cylinder heads that have been pressure-tested and machined to meet factory specifications. These heads are inspected for cracks, warping, erosion, and porosity to ensure long-lasting durability. Each head is reconditioned or manufactured with the correct cooling and oiling passages to support the KTA19’s high-horsepower output.

Features of our complete cylinder heads include:

• Precision-machined valve seats for proper sealing and combustion control.

• Threaded or machined ports designed to accommodate factory injectors and fuel delivery systems.

• Hardened surfaces at all wear points to extend service life in extreme-duty environments such as marine, mining, or industrial applications.

• Pressure-tested cooling jackets to ensure no coolant leaks after installation.

We stock heads for both marine and industrial configurations, and we can help you confirm compatibility based on your CPL number or engine serial number.

Valve Springs, Seals, and Retainers For Cummins KTA19

Valve control is critical in a high-compression diesel engine like the Cummins KTA19. Our valve springs, seals, and retainers are built to withstand extreme operating temperatures and pressures.

• Valve Springs: Ensure consistent valve closure under high-RPM operation. Ours are tension-calibrated to prevent valve float and reduce premature wear on the camshaft and lifter assemblies.

• Valve Seals: Keep oil from leaking into the combustion chamber, protecting both your piston rings and emissions system.

• Valve Retainers: Maintain spring alignment and provide a secure connection with the valve stem for consistent actuation.

These components are tested for hardness, spring rate, and heat resistance to ensure dependable performance.

Valve Guides and Inserts For Cummins KTA19

Proper valve alignment and seating are only possible when valve guides and inserts are in perfect condition. We carry valve guides and valve seat inserts for all cylinder head rebuilds, manufactured with materials that resist wear from heat and chemical corrosion.

• Valve Guides: Maintain the vertical motion of intake and exhaust valves, reducing side loading and scoring. Our guides are reamed to tight tolerances for optimal clearance.

• Valve Seat Inserts: Hardened and machined for long-term durability. Proper seating prevents loss of compression and minimizes the risk of hot gas blow-by that can damage the head.

These components are recommended for any full cylinder head rebuild or when you observe valve seat erosion or guide wear beyond spec.

Head Bolts and Gasket Sets For Cummins KTA19

Cylinder head bolts and gaskets are critical to maintaining the high compression ratios of the KTA19 engine. We offer complete head bolt kits and cylinder head gasket sets engineered for proper torque retention and long-term sealing.

• Head Bolts: Grade 12.9 tensile strength, torque-to-yield calibrated for precision installation. Replacing head bolts is strongly recommended during every cylinder head service to prevent bolt stretch and gasket leaks.

• Gasket Sets: Include the head gasket, valve cover gasket, intake and exhaust gaskets, injector o-ring seals, and miscellaneous washers. Our gaskets are made from multi-layer steel or premium composite material, depending on application.

These items are essential to complete any cylinder head reinstallation and avoid premature failures.

Rocker Arms, Push Rods, and Crossheads For Cummins KTA19

Valve actuation on the Cummins KTA19 is performed through a system of rocker arms, push rods, and crossheads, each designed for high-cycle durability and precise control of valve timing.

• Rocker Arms: Distribute camshaft motion to the valves. Our aftermarket rocker arms include bushings and oil passages cleaned and inspected for full function.

• Push Rods: Transmit lifter movement to the rocker arm. Ours are checked for straightness and proper tip hardening to prevent tip deformation or galling.

• Crossheads: Used in multi-valve systems to evenly distribute rocker movement across dual valves. Each crosshead is dimensionally checked and machined to ensure a proper fit.

When servicing the cylinder head, these components should be inspected and replaced if worn to prevent excessive valve lash and erratic engine behavior.

Precision Tested and Factory-Spec Machining

All the heads we carry are pressure-tested and machined to factory specs to ensure that you receive the highest-quality product available. Pressure testing checks for internal coolant or oil leaks that can lead to catastrophic engine damage. Our machining processes include:

• Deck resurfacing for optimal gasket sealing.

• Valve seat re-machining and lapping for airtight sealing.

• Guide and insert installation to OEM alignment tolerances.

• Cleaning of all oil and coolant passages for uninterrupted flow.

This ensures you’re getting a head ready to bolt on without the risk of thermal failure, compression loss, or alignment issues.

Applications and Support

The Cummins KTA19 engine is widely used in marine propulsion systems, mining equipment, power generation, and oilfield applications. It operates under extreme conditions where engine uptime is critical. That’s why the quality of your cylinder head components plays a direct role in your engine’s reliability and long-term cost of ownership.

Whether you’re maintaining a fleet of workboats or managing a standby generator system, our aftermarket cylinder head parts are built to OEM-equivalent standards — often exceeding them in durability and value.

Why Choose Diesel Pro Power?

• Fast Worldwide Shipping: We ship cylinder heads and all related top-end parts worldwide with fast processing times.

• Expert Technical Support: Need help identifying the right part for your engine? Our trained diesel specialists can guide you through selecting the right components based on your CPL or engine model.

• Premium Aftermarket Quality: We do not sell used, reworked, or substandard parts. Everything we carry is new or fully reconditioned to exact specifications.

Disclaimer

For precise torque values, reusability specs, and detailed installation procedures, always refer to the Cummins KTA19 OEM service manual. This guide provides general component information and best practices, but the OEM manual should be used during final assembly for correct procedures, torque specs, and sequence instructions.

Final Notes

Cylinder head failure can lead to compression loss, misfiring, overheating, and even catastrophic engine failure. If you’re experiencing symptoms like coolant in the oil, white smoke, or a loss of compression, it may be time to inspect or replace your KTA19 cylinder head and associated components.

With Diesel Pro Power, you get access to the most trusted aftermarket parts for Cummins engines, backed by expert support and unmatched delivery times. Whether it’s a simple top-end reseal or a full head replacement, we’ve got you covered with everything you need — from bolts to complete heads — pressure-tested and machined to get the job done right.

Let us help you keep your Cummins KTA19 engine running at full power, wherever your operations take you.

Engine Specifications for Cummins KTA 19

The Cummins KTA 19 is a heavy-duty diesel engine engineered to withstand the most demanding marine and industrial environments. Renowned for its high torque, exceptional durability, and long service intervals, the KTA 19 continues to power workboats, generators, offshore equipment, and heavy machinery globally.

Core Specifications:

• Engine Model: Cummins KTA 19

• Displacement: 19 liters

• Configuration: Inline 6-cylinder

• Power Output: 450–700 HP (336–522 kW)

• Aspiration: Turbocharged and Aftercooled

• Cooling: Water-cooled via heat exchanger (marine) or radiator (industrial)

• Fuel System: Direct injection with twin turbo configurations

• Applications: Marine propulsion, generator sets, offshore drilling, industrial power units

• Manufactured in: Seymour, Indiana (USA) and Pune, India

The KTA 19 is designed for mission-critical applications where uptime is non-negotiable. Whether powering a super yacht or supporting heavy infrastructure, its robust construction ensures unmatched performance under extreme loads and conditions.

Applications of the Cummins KTA 19 Engine

The versatility of the KTA 19 allows it to thrive in both marine and industrial environments where reliability and high horsepower are crucial.

Marine Applications

• Super yachts and luxury vessels

• Offshore support vessels (OSVs)

• Tugboats and push boats

• Commercial fishing vessels

• Dredgers and barges

• Marine auxiliary generators

Industrial Applications

• Oil and gas drilling equipment

• Heavy-duty generators (prime and standby)

• Mining haul trucks and loaders

• Cranes and construction equipment

• Industrial pumps and compressors

• Remote site power generation

This engine’s longevity, fuel efficiency, and rugged build make it a favorite in industries with minimal tolerance for downtime.

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