Product Description
Cummins 4089542 rear main crankshaft seal kit for select L10, M11, and ISM diesel engines. The kit includes a rear crankshaft oil seal and wear sleeve designed to help prevent engine oil leaks at the rear of the crankshaft.
This replacement seal kit is used in compatible heavy-duty diesel engines and is commonly cross-referenced with Cummins part numbers 4023018 and 4923644.
Verify compatibility using your engine serial number before ordering.
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