1989-2018 5.9 / 6.7 Cummins Main Bearings (std)

*Sold as a complete set

H and HX Clevite bearings were developed primarily for use in NASCAR type racing but are suitable for all types of competition engines.

H series bearings have a medium level of eccentricity, high crush and rod bearings have a hardened steel back and thin overlay. These bearings also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating.

The HX series bearings have and .001 extra clearance.