Steel King Pin

The Diversified Machine Steel King Pin (SRC-2039) is a precision replacement component engineered for sprint front spindle assemblies. This long-format king pin measures 5.580 inches in overall length with a 0.859-inch outside diameter and features a 5/8-18 inch thread, making it a direct fit for DMI sprint front spindle systems commonly found in circle track racing and off-road competition vehicles.

Manufactured from steel, this king pin provides the load-bearing capacity and wear resistance required in high-stress suspension geometry. The specified thread pitch and diameter ensure proper clamping force and axial stability in the spindle bore, critical for maintaining steering geometry and wheel alignment under lateral g-forces. The 5.580-inch length positions the pin correctly within the spindle cavity to support both upper and lower ball joint assemblies without binding or excessive play.

This component is essential for sprint front spindle assembly, repair, or replacement in racing applications where stock kingpin geometry has been modified for performance or durability. Competitors and builders maintaining Diversified Machine spindle systems rely on correct OEM-equivalent king pin specifications to preserve steering response and wheel bearing preload integrity. The 0.5-pound weight reflects steel construction suitable for repeated heat cycles and sustained lateral loading.

TacticalSurplusUSA stocks this DMI king pin as a replacement component for serious competitors and builders who understand that suspension geometry precision directly impacts handling consistency and tire wear patterns. Whether you're rebuilding after a season or restocking your pit supplies, this verified-fit component eliminates fitment guesswork.