Clevite MS-2339A-20 Engine Crankshaft Main Bearing Set

The Clevite MS-2339A-20 is a precision-engineered main bearing set designed to deliver exceptional durability and performance in demanding engine applications. This complete crankshaft main bearing set provides a direct replacement solution for proper engine assembly and rebuild projects.

Advanced Bi-Metal Construction:

Featuring Clevite's proven bi-metal aluminum design, these bearings utilize a 100% lead-free aluminum silicon alloy that meets modern environmental standards without compromising performance. The advanced metallurgy contains 60% more silicon content compared to competitive replacement bearings, delivering superior conditioning of crankshaft journal surfaces during operation.

Key Features:

• 100% lead-free aluminum silicon bi-metal construction
• Enhanced silicon content for improved journal surface conditioning
• Superior seizure resistance for protection during high-stress conditions
• Exceptional wear resistance for extended bearing life
• Precision manufacturing to OE specifications
• Complete main bearing set for full crankshaft coverage

Performance Benefits:

The increased silicon content in these Clevite bearings provides measurable advantages in real-world operation. Better journal conditioning reduces friction and heat buildup, while the enhanced wear resistance extends service intervals. The superior seizure resistance offers critical protection during cold starts, high-load situations, and marginal lubrication conditions.

Clevite engine bearings are trusted by professional engine builders and automotive technicians for their consistent quality and reliable performance. The MS-2339A-20 continues this legacy with engineering designed to meet or exceed OEM specifications.