Support the crankshaft and hold precise oil clearance with the Sealed Power Engine Crankshaft Main Bearing Set 7144MA. It drops in as a direct-fit replacement across a wide range of applications, including the 1975-1987 Buick Regal [V6-3.8L], 1982-1985 Buick Century [V6-3.0L], 1980-1985 Chevrolet Caprice [V6-3.8L], 1966-1971 Jeep CJ5 [V6-3.7L], and 1972-1973 Jeep CJ5 [V8-5.0L] — see the Buyer's Guide tab for the full list of 110 applications.
Main bearings sit between the crankshaft main journals and the block, riding on a film of pressurized oil to support the crank and control running clearance. Knocking under load and low oil pressure are signs the main bearings may need replacing; diagnose the cause before servicing.
- A-Series bi-metal aluminum alloy: greater seizure resistance than tri-metal material.
- Made with silicon: for greater surface hardness.
- Exacting tolerances: meets or exceeds OEM specifications.
- Wear control: reduces dramatically or eliminates bearing wear.
Offered as a Premium-grade main set, available in standard and undersize options (Std, 1, 10, 20, 30, 40). Country of origin: Mexico.
Interchange: Manufacturer part number 7144MA.
This part cross-references / interchanges with the following part numbers:
MS1822P, MS960P, MB3116, BC450JSTD, MB480SI, MS7144AL
