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The ACL main bearing set is a +0.25 oversized main bearing kit for 1981–1998 Mazda B5, B6 and BP engines with 1498, 1597 or 1840cc displacements. It supplies size-correct main bearings to restore proper crank journal clearances during an engine rebuild or repair. Use this direct replacement set when journals are machined to the +0.25 specification to maintain bearing oil clearance and reliable rotating assembly support.
ACL 81-98 Mazda B5/B6/BP 1498-1597-1840cc +0.25 Oversized Main Bearing Set
