Clevite Main Bearing Set

This is a Clevite Main Bearing Set, part number MS685P20. It's designed to fit a range of classic Ford and Mercury engines from the mid-1960s and early 1970s, including models like the Ford Fairlane, Mercury Monterey, and Ford F-500. Main bearings are crucial for supporting the crankshaft within the engine block, ensuring it spins smoothly and with minimal friction. When rebuilding or repairing an engine, replacing these bearings is a common and important step to restore proper oil clearance and reduce wear.

Clevite bearings are well-built and a popular choice for engine work. This set is made with materials and construction methods that aim for durability and reliable performance in these older applications. Proper installation, including ensuring the crankshaft journals are clean and within spec, is key to getting the most out of these bearings and ensuring a long life for your engine rebuild.