It creates a seal between two engine surfaces, preventing oil or other fluid leaks at the mounting point. Cummins specifies its primary use on non-certified 11-liter M11 engines; you can also find them on L10, ISM, and QSM engines.
Exact compatibility must be verified using the ESN, as the location and configuration may vary.
The kit is installed at the front end of the crankshaft, where the shaft passes through the oil pan/front cover. The oil seal keeps the lubricating oil inside the engine while the crankshaft rotates at high speed.
Used primarily in the Cummins L10, M11, ISM, and QSM11 engine families.
Final compatibility must be verified using the ESN (Engine Serial Number) or CPL, because Cummins may use different configurations of the same engine.
It ensures the combustion chamber remains airtight and allows for the controlled flow of high-pressure, high-temperature exhaust gases toward the manifold and the turbocharger. The kit includes an exhaust valve and retaining cones.
Used on Cummins Heavy Duty and Medium Duty engines (industrial, marine, automotive, and construction applications) in the ISC (8.3L), ISL / ISL9 / ISLE4 (8.9L), QSC8.3, QSL9, 6C8.3, B4.5, and ISF3.8 engine series. Models from approximately 2002 to the present.
Always verify using the Engine Serial Number (ESN).