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PAI Industries · Engine
171866
In stock · ships from Knoxville
The PAI 171866 is a standard-size main bearing kit designed for Cummins L10, M11, ISM, and QSM diesel engines.
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Verified fitment for 4 applications
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All confirmed applications for this part number.
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Part data verified against 4 catalog sources
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Main bearings support the crankshaft and maintain oil clearance; when they wear, you'll see low oil pressure or hear knocking, requiring replacement to avoid crankshaft damage. This kit provides the upper and lower bearing shells needed for a standard overhaul. Always confirm engine serial number for exact fitment.
Part Number: 171866
MAIN BEARING KIT
Vendor: PAI Industries
Dealer: KP Services Crossville
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