Federal Mogul 7047MA20 Engine Main Bearing Set Undersize - 0.020

The Federal Mogul 7047MA20 is an engine main bearing set in a 0.020 undersize. Main bearings sit between the crankshaft journals and the engine block. They support the crankshaft as it rotates and hold a film of oil between the moving surfaces.

Key Features:

• Engine main bearing set for crankshaft support
• Undersize variant, 0.020, for use with crankshaft journals that have been machined to match
• Suited to engine rebuilds and overhauls

Choose the undersize that matches your measured crankshaft journal size so the bearings give the correct oil clearance after installation.