Clevite MS-1117A-.50MM Main Bearing Set Undersize .50mm Bi-Metal Aluminum

The Clevite MS-1117A-.50MM is a .50mm undersize engine crankshaft main bearing set engineered for demanding performance and long-term durability. This precision-manufactured bearing set is designed for engines requiring undersize bearings due to crankshaft journal machining or wear.

Key Features:

• Bi-metal aluminum construction with 100% lead-free aluminum silicon alloy
• Contains 60% more silicon than comparable competitive replacements for superior journal conditioning
• Enhanced seizure resistance protects against bearing failure under high stress conditions
• Improved wear resistance extends bearing life and maintains oil clearances
• Precision .50mm undersize for professionally machined crankshafts
• Manufactured to OE specifications for reliable fit and performance

Clevite engine bearings are trusted by professional engine builders and technicians for their consistent quality and proven performance. The advanced aluminum silicon formulation provides better conditioning of crankshaft journal surfaces, reducing friction and heat while maintaining proper oil film thickness. This bearing set delivers the durability and dependability required for both stock rebuilds and performance applications.