Clevite MS1621P P-Series Main Bearing Set

The Clevite MS1621P is a P-Series main bearing set from the Clevite 77 performance bearing family, designed for high-revving engines and performance applications. As one of the oldest and most trusted members of the Clevite bearing lineup, P-Series bearings deliver proven reliability for demanding engine builds.

Tri-Metal Construction:

• Hardened steel backing provides structural strength and support
• Cast copper-lead intermediate layer withstands the high loads of engine operation
• Electroplated babbitt overlay on the running surface delivers superior anti-friction properties
• Three-layer design offers exceptional conformability, embedability, and fatigue resistance

Performance Features:

• High eccentricity design compensates for high-load factors and crankshaft distortion in performance engines
• High crush factor ensures positive seating and retention in the engine block
• Engineered specifically for engines operating at medium to high RPM ranges
• Superior to original equipment bimetal bearings in performance characteristics

Clevite P-Series main bearings are the ideal choice for engine rebuilds, performance upgrades, and street/strip applications where durability and reliability are essential. Manufactured to exacting tolerances by MAHLE, these bearings maintain the legacy of excellence that has made Clevite the bearing of choice for professional engine builders and performance enthusiasts.