[email protected] | +44 7776 800169
AMS Logo

Cummins Cylinder Heads and Engine Components

What are Cummins cylinder heads and engine components?

Cummins cylinder heads and engine components are critical parts of the engine structure responsible for managing combustion, airflow, and mechanical movement within the engine. The cylinder head sits at the top of the engine block and houses key elements such as valves, injectors, and passages for air, fuel, and coolant. In Cummins diesel engines used for power generation, marine propulsion, and industrial applications, cylinder heads play a major role in maintaining engine efficiency and performance.

Alongside cylinder heads, a range of internal engine components work together to ensure smooth and reliable operation. These include pistons, liners, bearings, camshafts, crankshafts, and valve train components. Using correctly specified Cummins engine components helps ensure the engine continues operating according to manufacturer design and performance standards.

When do Cummins cylinder heads need replacement?

Cummins cylinder heads may require replacement or refurbishment during scheduled engine overhaul or when signs of mechanical failure appear. Engines operating under heavy loads or high running hours may eventually experience wear or damage to the cylinder head and associated components.

Common reasons for replacing a Cummins cylinder head include:

  • Cracking due to overheating or thermal stress
  • Warping caused by cooling system failures
  • Worn valve seats or valve guides
  • Combustion leakage or loss of compression
  • Damage during extended high-load engine operation

Routine inspection during engine maintenance helps identify when cylinder heads or related engine components require replacement.

What components are included in Cummins engine cylinder head assemblies?

Cummins cylinder head assemblies typically include several integrated components that control airflow, combustion, and valve movement. The exact configuration depends on the engine model and application.

Typical components associated with Cummins cylinder heads include:

  • Cylinder head casting
  • Intake and exhaust valves
  • Valve springs and retainers
  • Valve guides and valve seats
  • Injector ports and fuel passages
  • Rocker arm components
  • Cooling and lubrication channels

In addition to cylinder heads, Cummins engine rebuild and maintenance programmes may involve replacing supporting components such as pistons, cylinder liners, bearings, camshafts, and crankshafts.

Which Cummins engine series use these cylinder head components?

Cummins cylinder heads and engine components are available for a wide range of Cummins diesel engine platforms used across generator systems, marine installations, and industrial power equipment.

Common Cummins engine series include:

  • B Series – including 4B and 6B engines
  • C Series – including 6CT and 6CTA engines
  • L Series – including ISL and QSL engines
  • M Series – including M11 and QSM11 engines
  • N Series – including NT855 and NTA855 engines
  • K Series – including KTA19, KTA38, and KTA50 engines
  • QSK Series – including QSK19, QSK38, QSK50, and QSK60 engines

These engines are commonly used in standby and prime generator sets, marine propulsion systems, and industrial power units.

Where are Cummins cylinder heads and engine components used?

Cummins cylinder heads and engine components are widely used across industries where diesel engines operate continuously and require dependable mechanical performance. These components form a core part of maintenance and overhaul programmes designed to keep engines operating efficiently.

Typical applications include:

  • Diesel generator systems for standby and prime power
  • Marine propulsion and auxiliary engines
  • Industrial manufacturing facilities
  • Energy and power generation installations
  • Oil and gas sector equipment

Engines operating in these sectors often require periodic replacement of internal engine components to maintain operational reliability.

How can the correct Cummins cylinder head or engine component be identified?

Selecting the correct Cummins cylinder head or engine component requires confirmation of the engine model, engine serial number, or CPL (Control Parts List) number. These details ensure the correct specification and configuration are matched to the engine.

Providing accurate engine information allows the correct parts to be identified and helps ensure compatibility with the engine’s design and operating requirements.

How can AMS Parts help?

For Cummins cylinder heads and engine components matched to your engine specification, provide the engine model number, or CPL to ensure correct fitment and configuration. Accurate selection supports reliable engine performance and rebuild integrity. Submit your details to confirm compatibility and availability. 

Explore Cummins spare parts

Below is a selection of Cummins spare parts. To locate a specific item, use the search bar above and enter the part name or part number.

Cummins 3201852 GASKET,BEARING SUPPORT
Cummins 3201850 GSK, CPR
Cummins 320183200 HOSE,PLAIN
Cummins 3201832 HOSE,PLAIN
Cummins 320183100 HOSE,PLAIN
Cummins 3201831 HOSE,PLAIN
Cummins 320183000 HOSE,PLAIN
Cummins 3201830 HOSE,PLAIN
Cummins 320182900 COUPLING,ELBOW HOSE
Cummins 3201829 COUPLING,ELBOW HOSE
Cummins 320179300 DIPSTICK
Cummins 3201793 DIPSTICK
Cummins 320179100 DIPSTICK
Cummins 3201791 DIPSTICK
Cummins 3201785 COOLER - OIL
Cummins 320175900 SCREW,HEXAGON HEAD CAP
Cummins 3201759 SCREW,HEXAGON HEAD CAP
Cummins 320175300 TUBE,AIR FUEL CONTROL
Cummins 3201753 TUBE,AIR FUEL CONTROL
Cummins 320175000 HUB,FAN
Cummins 3201750 HUB,FAN
Cummins 320174900 SHAFT,FAN HUB
Cummins 3201749 SHAFT,FAN HUB
Cummins 320174000 ASSEMBLY,ENGINE BARRING
Cummins 3201740 ASSEMBLY,ENGINE BARRING
Cummins 3201739 SHAFT, BARRING
Cummins 320173700 TUBE,FUEL DRAIN
Cummins 3201737 TUBE,FUEL DRAIN
Cummins 320173600 TUBE,FUEL SUPPLY
Cummins 3201736 TUBE,FUEL SUPPLY
Cummins 3201724 SCREW,HEXAGON HEAD CAP
Cummins 320170700 CONNECTOR,TUBE
Cummins 3201707 CONNECTOR,TUBE
Cummins 320170400 COVER,ROCKER LEVER
Cummins 3201704 COVER,ROCKER LEVER
Cummins 320169300 GASKET,ACC DRIVE SUPPORT
Cummins 3201693 LINER
Cummins 320166700 GUARD,BELT
Cummins 3201667 GUARD,BELT
Cummins 320165900 SEAL,RECTANGULAR RING
Cummins 3201659 RING - SEAL
Cummins 320164400 HOUSING,OIL COOLER
Cummins 320164000 TUBE,FUEL DRAIN
Cummins 3201640 TUBE,FUEL DRAIN
Cummins 320161400 SPACER,MOUNTING
Cummins 3201614 SPACER,MOUNTING
Cummins 320160900 COVER,HYD PUMP FLANGE
Cummins 3201609 COVER,HYD PUMP FLANGE
Cummins 320159600 SCREW,HEXAGON HEAD CAP
Cummins 3201596 SCREW,HEXAGON HEAD CAP
Cummins 320158500 SEAL,O RING
Cummins 3201585 SEAL,O RING
Cummins 320158300 PLUG,THREADED
Cummins 3201583 PLUG,THREADED
Cummins 320157000 CONNECTION,AIR CROSSOVER
Cummins 3201570 CONNECTION,AIR CROSSOVER
Cummins 320156800 PLUG,COUPLING
Cummins 3201568 PLUG, COUPLING
Cummins 320156300 VALVE,COUPLING
Cummins 3201563 VALVE,COUPLING