Perfect Circle MS829P Main Bearing Set Standard Size Tri-Metal

The Perfect Circle MS829P is a premium main bearing set designed for high-performance engine builds. This set features advanced tri-metal construction with a steel backing, an intermediate copper-lead alloy layer, and an electroplated lead-tin-copper overlay for superior durability and wear resistance.

Key Features:

• Tri-metal construction with steel backing for maximum strength
• Half-groove bearing design for optimal oil distribution
• Standard size crankshaft journal specifications
• High crush factor and eccentricity for high-load applications
• Extra-thin overlay to prevent overlay fatigue in high-revving engines
• Complete set includes all necessary bearings for installation

Perfect Circle, now part of the MAHLE/Clevite family, has been manufacturing premium engine components since 1895. The P-Series bearings are engineered for high-performance and high-revving engine applications where superior load capacity and durability are essential. These bearings compensate for high-load factors and engine distortion common in performance builds.