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The ACL main bearing set is a crankshaft main bearing kit intended for replacing worn main bearings and maintaining crankshaft support during engine service. It offers a direct parts-level replacement to help restore engine internals. This set is specified for Ford/Naval V8 421–444 diesel engines covering 1983–1994 applications.
ACL Ford/Nav. V8 421-444 Diesel 1983-94 Engine Crankshaft Main Bearing Set
