Installed in the cylinder head; it keeps the valve stem aligned during opening and closing. This applies especially to non-certified 10-liter versions.
It is also sold for M11 and ISM applications, but for these motors, it is recommended to check the ESN serial number.
Some catalogs list it for intake valves; other aftermarket catalogs describe it as suitable for both intake and exhaust. The correct installation position must therefore be confirmed via CPL/ESN.
Cylinder head; can be used as a seat for the intake or exhaust valve, depending on the cylinder head configuration.
Compatible engines: Cummins L10 / LTA10. Some aftermarket catalogs also list the M11, but Cummins officially specifies part number 3418040 primarily for non-certified 10-liter L10 engines. Always verify using the Engine Serial Number (ESN).
It is located between the cylinder head and the exhaust manifold; it prevents exhaust gases from escaping.
Cummins specifies the primary use for 10-liter L10 engines; aftermarket catalogs extend the application to the M11, ISM, and QSM families. Final compatibility should be verified using the engine’s serial number.
Rectangular Ring Seal Cummins Engine M11 – Engine ISM – Engine QSM
Seal the component joint to prevent oil or engine fluids from leaking. Cummins primarily uses it for 11-liter M11 engines, but it is also installed in L10, ISM, and QSM engines.
To confirm the exact application, you should check the motor’s ESN/CPL, as it may vary depending on the configuration.