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The ACL main bearing set is a crankshaft main bearing kit supplying replacement bearings to support crankshaft journals during rebuilds and maintenance. It’s intended as a direct service kit to restore internal clearances. This set is specified for Mazda 4‑engine displacements 1586–1796–1970cc covering 1970–1985 applications.
ACL Mazda 4 1586-1796-1970cc 1970-85 Engine Crankshaft Main Bearing Set
