Clevite MS-2258A-.25MM Engine Crankshaft Main Bearing Set 0.25mm Undersize

The Clevite MS-2258A-.25MM is a precision-engineered crankshaft main bearing set designed for 0.25mm undersize applications. This complete bearing set provides the critical interface between your engine's crankshaft and block, ensuring smooth rotation and proper oil clearance in rebuilt or performance engines.

Key Features:

• AL Series aluminum-based bearing construction for excellent conformability and embeddability
• 0.25mm undersize specification for use with reground crankshafts
• Application-specific eccentricities engineered for optimal oil film distribution
• Premium bearing material resists corrosion and wear under high loads
• Manufactured to OE tolerances with Clevite's proven performance standards
• Complete main bearing set for comprehensive engine rebuild coverage

Clevite AL Series bearings combine OE-quality aluminum bearing technology with advanced metallurgy and precision manufacturing. The carefully engineered eccentricities ensure proper oil clearance throughout the bearing surface, while the aluminum construction provides the conformability needed to compensate for minor surface imperfections. Ideal for engine rebuilders and performance enthusiasts requiring undersize bearings for machined crankshafts.