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.
Rectangular Ring Seal Cummins Engine ISM – Engine M11 – Engine QSM
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.
Rear Crankshaft Seal Kit Cummins Engine ISM – Engine QSM
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.