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The ACL main bearing set fits Nissan 4-cylinder SD20-SD22 engines (1991-2164cc) covering 1963-1980 applications and provides replacement crankshaft main bearings for rebuilds. These main bearings restore support and clearances for the crankshaft, helping maintain smooth engine rotation after reassembly. Appropriate for maintenance and full engine overhauls on the specified Nissan diesel four-cylinder models.
ACL Nissan 4 1991-2164cc SD20-SD22 1963-80 Engine Crankshaft Main Bearing Set
