Perfect Circle MS1733P Main Bearing Set for GM 151/153 4-Cylinder Engines

The Perfect Circle MS1733P is a precision-engineered main bearing set designed for GM, Pontiac, and Chevrolet 151 cubic inch (2.5L) and 153 cubic inch 4-cylinder engines manufactured from 1962 to 1993. This complete main bearing set provides a direct replacement solution for engine rebuilds and performance applications.

Key Features:

• Tri-Metal (TM-77) construction for superior durability and wear resistance
• P-Series bearing design engineered for reliable performance
• Standard size bearing set for factory crankshaft specifications
• Complete set includes all main bearings needed for installation
• Manufactured to strict OE specifications for precise fitment
• Compatible with Buick, Chevrolet, Pontiac, Oldsmobile, GMC, Jeep, and AMC applications

Perfect Circle bearings, now part of the Clevite/MAHLE family, deliver the quality and precision required for demanding engine applications. These main bearings feature advanced tri-metal construction that provides excellent load-carrying capacity, superior fatigue resistance, and optimal oil retention for extended service life.