The ACL main bearing set (5M909P) is an engine crankshaft main bearing kit supplied with a +0.020 in oversize flange. It serves as a direct replacement main bearing set to restore proper journal sizing where +0.020 oversize flanged bearings are required. Use it when matching crankshaft journals to an oversize main bearing specification; the set includes flanged shells for correct crankshaft support.
ACL 5M909P + .020 O/W FLANGE Engine Crankshaft Main Bearing Set