Clevite MS-1432A Engine Crankshaft Main Bearing Set

The Clevite MS-1432A is a precision-engineered crankshaft main bearing set featuring a grooved upper half and plain lower half design for optimal lubrication and performance. This bearing set utilizes proven engineering principles to maximize oil film thickness while efficiently delivering oil to connecting rod bearings.

Design Features:

• Grooved upper shell with plain lower shell configuration for optimal load distribution
• 180-degree groove in upper main shell provides excellent oil delivery to connecting rods
• Plain lower shell design maximizes oil film thickness for improved bearing life
• TriMetal bearing construction for exceptional strength and durability
• Reduced overlay thickness helps prevent overlay fatigue
• High crush design ensures maximum retention in the bore

Engineering Benefits:

• Upper shell grooving supplies critical lubrication to connecting rod bearings
• Ungrooved lower shell maintains thicker oil film under load for greater safety margin
• Lower shells handle higher loads with reduced peak oil film pressure
• Design minimizes horsepower loss while maximizing bearing protection

This main bearing set is part of Clevite's comprehensive line of performance bearing solutions, designed to meet the demanding requirements of both street and racing applications. The grooved upper/plain lower configuration represents decades of bearing technology development, providing the ideal balance between rod bearing lubrication and main bearing durability.

Application Note: This bearing set is engineered for engines requiring reliable main bearing performance with proper connecting rod oiling. The 180-degree upper groove design has been proven through extensive testing to deliver the best overall performance characteristics.