5977 MACK NUT

Description:

• Durable steel construction
• Direct replacement for OE part 21AX360
• Mack Engine Application
• Genuine PAI product including a factory 2-Year Warranty
• 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

Features

• DETAIL - PAI 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.
• STRENGTH - PAI hardware is made of industry leading materials and processes. Our hardware and fasteners are rigorously tested in heavy duty diesel engines and high stress work environments to certify proper and continuous operation over long periods of time.
• VARIETY - PAI is a market leader of heavy-duty diesel truck parts, and our hardware and fasteners are no exception. We have been manufacturing and expanding our product offerings since 1973. If there is a part you need, and we do not have it, there is a good chance we are working diligently to make it.