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.
Rear end of the crankshaft, flywheel side. Rear oil seal with wear ring, dry-clutch application, Non-REPTO. Prevents oil leakage between the crankshaft and the flywheel housing.
Final compatibility must be verified using the engine serial number, because the same M11/ISM model may use a different oil seal depending on the flywheel, clutch, and REPTO configuration.
Rear end of the crankshaft, flywheel side; Rear oil seal with wear ring, prevents oil leakage between the crankshaft and the flywheel housing, For certain L10, M11, ISM11, and QSM11 engines, depending on the engine configuration. Dry-clutch application, Non-REPTO.
Final compatibility must be verified using the engine serial number, because the same M11/ISM model may use a different oil seal depending on the flywheel, clutch, and REPTO configuration.