Clevite MS405P10 P-Series Main Bearing Set Undersize - 0.010

The Clevite MS405P10 is a precision-engineered P-Series main bearing set designed for Waukesha 180 series 4-cylinder engines with crankshafts machined 0.010 inch undersize. Part of the legendary Clevite 77 bearing family, these main bearings are specifically engineered for high-revving engines and demanding applications requiring maximum durability and performance.

Advanced Tri-Metal Construction:

• Hardened steel backing provides superior structural support and strength
• Cast copper-lead alloy intermediate layer withstands the high loads of engine operation
• Electroplated babbitt overlay on the running surface delivers excellent bearing surface qualities
• Tri-metal design offers superior conformability, embedability, and fatigue resistance compared to bi-metal bearings

Performance Features:

• High eccentricity design compensates for rod bore distortion in high-load applications
• High crush factor ensures better seating and retention in the housing bore
• Enhanced oil distribution with grooves that extend around both halves for complete 360-degree oiling
• Precision machined to 0.010 inch crankshaft undersize specification

Clevite engine bearings have been the choice of champions since the first NASCAR championship in 1948, powering every NASCAR champion to Victory Lane. Whether rebuilding stock engines or building high-performance powerplants, Clevite P-Series bearings deliver the conformability, slipperiness, and fatigue resistance not found in original equipment bearings. Sold as a complete main bearing set. Now part of the MAHLE Performance family, combining Clevite's legendary domestic expertise with global engineering excellence.