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The ACL main bearing set for Mazda 2,977–3,455cc 4-cylinder engines (1977–1990) supplies main bearings for crankshaft support during major service and rebuilds. Specified for the listed Mazda displacements and years, the set is intended to help restore main journal fit and oil clearance during bottom-end reassembly when servicing these larger-displacement Mazda four-cylinder engines.
ACL Mazda 4 2977-3455cc 1977-90 Engine Crankshaft Main Bearing Set
