OE Replacements: BNU-7835, PAI7835, 21AX391, 21AX391

Details: Nut 3-5/16in-12 Thread 4-1/8in Flats x 3/8in Height

Mack Engine Application

Direct replacement for OE part 21AX391

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.