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The ACL crankshaft main bearing set is made for Isuzu 4-cylinder 4JB1 engines (2771cc) covering 1985–1990 and provides main bearings for crankshaft support during engine operation. Intended for overhaul and repair work, this set helps restore correct oil clearance and crankshaft alignment so the bottom end runs smoothly after rebuild or bearing replacement.
ACL Isuzu 4 2771cc 4JB1 1985-90 Engine Crankshaft Main Bearing Set
