OE Replacements: HNU-5977, PAI5977, 21AX360, 144423H, 21AX360, 3088-X11005, 90261, 2719-90261, 108349H, 21AX792, 25095352, 25173377

Details: Nut, 5/8-18 Thread x 15/16 in. Flats x 3/4 in. Height, Locking

Mack Engine Application

Direct replacement for OE part 21AX360

Durable steel construction

Quality You Can Trust – PAI has established themselves as the leading supplier of aftermarket heavy duty diesel parts, with quality standards that always meet or exceed OE standards

DETAIL – HDKits hardware and fasteners are carefullly designed and feature very low tolerances. Fastener specifications are measured in a 3D environment and tested to ensure the 100% functionality.