Clevite MS1343P10 P-Series TriMetal Main Bearing Set .010 Undersize

The Clevite MS1343P10 P-Series main bearing set delivers proven performance and durability for engine rebuilds and performance applications. These precision main bearings feature Clevite's legendary TriMetal construction with a hardened steel back, cast copper-lead lining, and electroplated babbitt overlay for superior load capacity and fatigue resistance.

Key Features:

• TriMetal design with cast copper-lead construction increases fatigue strength by approximately 20% compared to powdered metal processes
• Hardened steel backing provides maximum strength and support under high loads
• Electroplated babbitt overlay on running surface ensures excellent conformability and embed ability
• High crush design ensures maximum retention in bearing bores
• Full-groove design maximizes oil flow to connecting rod bearings
• Reduced overlay thickness prevents overlay fatigue
• .010 inch undersize for crankshaft grinding applications
• Manufactured to meet or exceed OE specifications

Clevite P-Series bearings are ideal for demanding applications including heavy-duty use, motorsports, and street performance. The increased load capacity of the TriMetal design makes these bearings a suitable upgrade from standard bimetal engine bearings. Each bearing set is precision-engineered and perfectly matched for reliable engine operation.