ACL Race Series Engine Crankshaft Main Bearing Set (2009-2018 M5 , M6 , X5 , 750i) - 5M1573HX-STD
Main Bearing Set 5 - Standard Size with extra .001 in. oil clearance (thinner) for BMW N63B44, S63B44 4.4L V8
ACL RACE Series performance engine bearings are recognized as a premier brand throughout the motorsports world. RACE Series rod and main bearings are standard components in Race engines that have set records and won championships from Mexico to Bonneville - from sport compact drift racing to small block NASCAR, IHRA and NHRA cmpetitions. The unique combination of design, metallurgy and engineering provides RACE Series performance bearings with the endurance and capability to perform where others cannot. These exceptional bearings are available for a variety of American, Asian and European performance engines
