U-Bolt Nut | Mack Engines

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Description

OE Replacements: FNU-4729, PAI4729, 21AX131, 21AX131, 25085684

Details: U-Bolt Nut 1-1/4in-12 Thread 1-7/8in Flats 1-11/16in Height

Mack Engine Application

Direct replacement for OE part 21AX131

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.