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The ACL crankshaft main bearing set (part 4M1773P-20) is a matched set of main bearing shells intended for crankshaft support and clearance control during engine service. It supplies the main bearings used when replacing main shells or rebuilding the engine's bottom end. Confirm the part number and engine compatibility with your application before installation.
ACL 4M1773P-20 Engine Crankshaft Main Bearing Set
