Hendrickson 58900-406 or 58900406 knuckle, a genuine Hendrickson part from Pro Gear and Transmission.
The steering knuckle carries the wheel end and pivots on the kingpin as the driver steers, so it sits right where the front wheels meet the steer axle. When the kingpin joint runs short of grease, wear starts at the knuckle contact points and the looseness grows with every turn of the wheel. Watch for uneven front tire wear, steering wander, shimmy after bumps, rough handling or a shaking cab. Call us to confirm proper fit for your axle.
Features
Hendrickson part number 58900-406 or 58900406
Steering knuckle that pivots on the kingpin at the steer axle
A genuine Hendrickson part sold by Pro Gear and Transmission
Worn kingpin joints show up as uneven tire wear, wander and shimmy
Regular greasing of the kingpin bushings slows wear at the knuckle
