King Pin Cap Stud And Nut Assembly For Tether

The King Pin Cap Stud And Nut Assembly For Tether is a critical fastening component designed for heavy-duty suspension and steering systems on competition vehicles, off-road rigs, and custom-built racing platforms. This assembly secures the kingpin cap—the upper pivot point that carries vehicle weight and steering loads—ensuring structural integrity under extreme stress. Whether you're building a race car, trophy truck, or restoring a classic hot rod with modern suspension geometry, a quality kingpin cap assembly is non-negotiable for safety and handling consistency.

Manufactured by BUTLERBUILT—a trusted name in motorsports fabrication and precision fastening—this kingpin cap stud and nut assembly delivers the reliability demanded in high-performance applications. The tether design prevents cap separation during aggressive cornering, hard braking, and suspension articulation, while the precision-machined stud ensures proper preload distribution across the kingpin bore. Compact dimensions (2.15 x 1.15 x 3.15 inches) and a featherweight footprint (0.23 lbs) make it ideal for weight-sensitive builds, while the assembly's hardened steel construction withstands repeated shock loads and thermal cycling that would compromise inferior fasteners.

This kingpin cap stud and nut assembly is essential for independent front suspension (IFS) conversions, vintage drag racing platforms, and any vehicle where the factory kingpin design has been modified or upgraded. Installation requires proper torque specification and alignment verification to maintain steering geometry and suspension geometry targets. Mechanics and fabricators regularly specify BUTLERBUILT components for OEM-level fit and finish without the OEM price tag—making this assembly a smart choice for both budget-conscious enthusiasts and professional race shops building championship-caliber vehicles.