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.
It is not just a simple pulley. It is installed at the front end of the crankshaft and functions as a harmonic balancer mounted on the front end of the crankshaft. It serves to reduce torsional vibrations and oscillations of the crankshaft generated during diesel engine operation. It features a metal construction with an elastomeric/rubber damping element.
It creates a static seal between engine components, preventing leaks of oil, coolant, or pressure at the specific mounting point. The exact location varies depending on the engine configuration.
Cummins specifies that this product is primarily intended for use with non-certified 11-liter M11 engines; aftermarket catalogs also list the L10, ISM, and QSM models. Final compatibility must be verified using the engine’s serial number, as it may vary depending on the CPL and configuration.