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The ACL main bearing set for Chevrolet 4.121 engines covering 1987–1996 is a crankshaft main bearing kit intended for rebuilds and repairs. This set supplies the bearings that support the crankshaft journals and restore proper oil clearance, helping technicians and home mechanics reestablish smooth crankshaft rotation and internal support during reassembly of those Chevrolet engines.
ACL Chevrolet 4 121 1987-96 Engine Crankshaft Main Bearing Set
