OE Replacements: FWA-0399, PAI0399, 37AX557, 37AX557, 25096013

Details: Washer 0.406in I.D. x 2.00in O.D. x 0.125in Thickness 10.31mm I.D. x 50.80mm O.D. x 3.18mm Thickness Hardened

Mack Engine Application

Direct replacement for OE part 37AX557

Durable medium carbon 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.