King Pin Bushing (Each)

The King Pin Bushing from M and W Aluminum Products is a critical wear component designed for heavy-duty suspension systems and steering geometry in trucks, trailers, and rugged off-road vehicles. As a mechanic, you'll recognize this bushing as the small but essential pivot element within the kingpin assembly—the hardened pin that connects the steering knuckle to the axle beam. When kingpin bushings wear, steering becomes notchy, play develops in the front end, and alignment specs drift out of spec. This single bushing (sold individually) allows you to address localized wear without replacing the entire kingpin assembly, making it an economical repair solution for fleet maintenance and custom suspension builds.

Manufactured by M and W Aluminum Products—a trusted name in OEM-quality suspension components—this bushing is engineered to restore precise kingpin fit and reduce radial play that accumulates from road shock and torsional stress. The compact dimensions (2.8 x 1.1 x 2.95 inches) and lightweight profile (0.08 lbs) make installation straightforward on most medium and heavy-duty platforms. Aluminum construction combined with tight manufacturing tolerances ensures the bushing seats cleanly in the kingpin bore and maintains consistent steering response and caster alignment. Proper kingpin bushing clearance is non-negotiable for safe articulation, especially on vehicles running aggressive tires or frequent off-highway duty where suspension loads spike dramatically.

This bushing is ideal for technicians rebuilding solid-axle front-end assemblies on classic trucks, late-model heavy-duty pickups, and utility vehicles where kingpin steering geometry remains the standard. Fleet operators and restoration shops benefit from buying individual bushings in matched sets to ensure both sides track uniformly and steering feel remains centered. Before installation, verify kingpin bore diameter and condition; worn kingpin shafts may require oversized bushings or kingpin replacement. Proper press-fit technique using a kingpin bushing tool prevents galling and ensures long-term durability. This single unit is an essential addition to any suspension rebuild kit.