Clevite MS-2209A Engine Crankshaft Main Bearing Set

The Clevite MS-2209A is a high-performance engine crankshaft main bearing set designed for demanding automotive applications. This P-Series bearing set features precision-engineered TriMetal construction with a hardened steel back for maximum strength and retention. The set utilizes an optimized 180-degree groove design in the upper main shells to efficiently supply oil to connecting rod bearings while maintaining maximum oil film thickness in the lower shells for superior load capacity.

Key Features:

• P-Series high performance design with unique core part numbers
• Full groove configuration for maximum oil flow to rod bearings
• High crush design for maximum bearing retention
• Reduced overlay thickness to prevent overlay fatigue and hen tracking
• Hardened steel backing for added strength and fretting resistance
• Optimized eccentricity to narrow bearing contact patterns
• TriMetal bearing construction for strength and durability

Important Notes:

• Requires thrust washer set (not included) - use with part number TW-606S
• Ideal for applications requiring increased oiling to rod bearings
• Recommended for engines experiencing rod bearing oil starvation
• Designed to prevent rod bore close-in at extremely high RPMs

P-Series main bearing sets are engineered for performance engines where maximum oil delivery to connecting rod bearings is critical. The full groove design and higher eccentricity make this bearing set the optimal choice for race engines and high-performance street applications prone to rod bearing lubrication issues. Professional installation and proper clearance checking is recommended to ensure optimal performance and longevity.