Clevite MS-1953A-.25MM Engine Crankshaft Main Bearing Set

The Clevite MS-1953A-.25MM is a precision-engineered crankshaft main bearing set designed for engine rebuilds requiring 0.25mm undersize bearings. This complete bearing set provides the critical interface between your engine's crankshaft and block, ensuring proper lubrication and load distribution.

Key Features:

• Bi-metal aluminum construction with 100% lead-free aluminum silicon alloy
• Contains 60% more silicon than competitive bearings for superior journal conditioning
• Enhanced seizure resistance protects against bearing failure during high-stress conditions
• Improved wear resistance extends bearing life and maintains proper oil clearances
• 0.25mm undersize specification for use with machined crankshafts
• Complete main bearing set for comprehensive engine rebuilding

Clevite bearings are trusted by professional engine builders and automotive technicians for their consistent quality and reliability. The advanced aluminum silicon formulation conditions the crankshaft journal surface over time, reducing friction and heat while maintaining the precise tolerances required for modern engines. This bearing set is ideal for rebuilds where the crankshaft has been machined 0.25mm undersize to restore proper geometry.