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ACL crankshaft main bearing set intended to restore proper journal support and bearing clearance during engine overhaul. It helps re-establish oil film control and smooth rotation of the crankshaft after replacing worn mains. This listing indicates the part will be superseded by 4M2037A when stock is exhausted, so confirm fitment against the replacement number.
ACL To be superceded by 4M2037A when stock exhausted. Engine Crankshaft Main Bearing Set
