Victor MS2218P Engine Crankshaft Main Bearing Set P-Series Standard

The Victor MS2218P is a P-Series engine crankshaft main bearing set designed as a direct replacement for stock main bearings. This set is engineered for engines where reliable, long-lasting crankshaft support is essential, making it well-suited for heavy-duty, diesel, and performance applications.

Key Features:

• P-Series TriMetal Construction: Steel backing provides structural support, a cast copper-lead alloy intermediate layer handles operational loads, and an electroplated lead-tin-copper babbit overlay delivers excellent surface qualities
• Full Oil Grooves: Upper bearing half features a half-groove oil channel design to maximize lubrication flow across the crankshaft journal
• High Crush Factor: Engineered with elevated eccentricity and high crush for superior bearing retention and precise fitment in the housing bore
• Minimized Overlay Thickness: Reduces the risk of overlay fatigue (hen tracking) under demanding operating conditions
• Direct Replacement Fit: Stock crankshaft undersize — no machining required for standard journal applications
• Grooved Bearing: Yes — upper half grooved for optimized oil distribution
• Housing Bore O.D.: 3.3464–3.3472 in.
• Sold as a Complete Set

Cross-Reference Part Numbers: MS-2218P, MS2218P, 7429M, BC204J, BC557J, MB3220

The MS2218P P-Series main bearing set provides a degree of conformability, embedability, and fatigue resistance that exceeds standard OE bimetal bearings, making it a reliable upgrade for engine rebuilds requiring enhanced durability and consistent oil film support.