The ACL main bearing set (5M590P) is an engine crankshaft main bearing kit supplied with a +0.020 in oversize flange specification. It functions as a replacement main bearing set for applications requiring +0.020 oversize flanged shells and provides the matched bearing halves needed to support crankshaft journals where this oversize specification is required by the engine rebuild or service.
ACL 5M590P + .020 O/W FLANGE Engine Crankshaft Main Bearing Set