ACL main bearing set intended for Buick V6 204–231 engines, covering the 1990–1993 production range, supplies matched mains for crankshaft support during engine overhaul. Applicable specifically to 1990–93 Type L engines, 1992–93 Type 1 engines, and 1991 Type C engines, the set restores proper main clearances and supports reliable journal seating when performing rebuild or service work.

ACL Buick V6 204-231 1990-93 Engine Crankshaft Main Bearing Set