JLG
King pin for JLG 600AJ
This king pin is designed for the steering and articulation systems of the JLG 600AJ boom lift. It serves as a pivot point to facilitate angular movement between machine components.
Compatible models
Specifications
- Part number
- 3422427
- Brand
- JLG
The king pin 3422427 acts as a central pivot axis within the steering and articulation assemblies of heavy machinery. By providing a stable hinge point, this component enables the necessary angular movement for wheel steering or chassis section articulation. Its installation is vital for maintaining the maneuverability and positioning accuracy required during operation of the equipment.
This component is compatible with the JLG 600AJ articulated boom lift. In this specific model, the part functions within the steering axles or the boom articulation points to support operational loads during work at height. Proper installation ensures that the machine maintains its intended range of motion and stability during use.
King pins function as the primary load-bearing pivot in steering knuckles or articulation joints. They are engineered to withstand shear and bending forces while allowing for rotational movement against bushings or bearings. Regular inspection of these pins is standard practice to monitor for clearance or wear, as they are essential for the precise control of the machine's directional and structural movement.

