ACL Bearings H-Series Main Bearing - Standard - Mitsubishi 4-Cylinder 5M1186H-STD 10000407 Better flow at extremely cold

Better flow at extremely cold temperatures compared to 5W30 and 10W30

For Extreme Duty Racing

black finish

Lead based babbit provides ideal properties for nearly all engine applications

ACL Bearings H-Series Main Bearing - Standard - Mitsubishi 4-Cylinder 5M1186H-STD 10000407 Better flow at extremely coldACL 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 competitions. The unique combination of design, metallurgy and engineering provides RACE Series performance bearings with the