High-Strength 45# Steel King Pin Kit KP231 Direct OEM Replacement Comprehensive Kit for ISUZU NKR NPR 100P 600P Truck

Heavy-duty king pin repair kit restores precise steering control and eliminates front axle play in ISUZU NKR and NPR trucks, ensuring safe, responsive vehicle handling.

• OE Quality: Manufactured to strict dimensional and material specifications for perfect fit and function.
• Premium Material: High-strength 45# steel / SAE1045 provides exceptional durability and wear resistance.
• Comprehensive Kit: Includes all necessary components for a complete king pin rebuild.
• Precision Machining: Components manufactured to exacting tolerances for proper fitment.
• Restores Steering Precision: Eliminates steering wander and loose feel caused by worn king pins.
• Improves Handling: Provides responsive, precise vehicle control.
• Prevents Uneven Tire Wear: Correct steering geometry extends tire life.
• Critical Safety Component: Ensures reliable steering operation.
• Direct Replacement: Complete kit simplifies the rebuild process.
• Long Service Life: Engineered to withstand the rigors of heavy-duty commercial operation.
• Trusted Quality: Backed by quality assurance and industry certifications.

This king pin kit is specifically designed for ISUZU light to medium-duty trucks:

• ISUZU NKR – Light-Duty Trucks
• ISUZU NPR – Medium-Duty Trucks
• ISUZU 100P – Light-Duty Trucks
• ISUZU 600P – Light to Medium-Duty Trucks
• ISUZU ELF – Light to Medium-Duty Trucks
• ISUZU NHR (select models)

Professional installation required. Proper procedure is critical for safe steering operation:

1. Raise and secure the vehicle – Safely raise the front axle and support on jack stands.
2. Remove the front wheels – Remove both front wheels for access to steering components.
3. Remove the steering knuckle – Disconnect the tie rod, drag link, and remove the steering knuckle.
4. Remove the old king pin – Press out the old king pin and remove bushings and bearings.
5. Inspect the axle yoke – Check the axle yoke for wear or damage; repair or replace if necessary.
6. Clean thoroughly – Clean all components and mounting surfaces.
7. Install new bushings – Press new bushings into the steering knuckle.
8. Ream/hone bushings – Ream or hone bushings to correct king pin clearance (if required).
9. Install new king pin – Press the new king pin into the axle yoke.
10. Install thrust bearings and spacers – Install new thrust bearings and spacers.
11. Install the steering knuckle – Position the knuckle on the axle yoke and install the king pin.
12. Install seals and caps – Install new seals and dust caps.
13. Install adjusting shims – Install shims to achieve proper vertical clearance.
14. Install grease fittings – Install new grease fittings.
15. Reconnect steering components – Reconnect the tie rod and drag link.
16. Grease the assembly – Apply the recommended grease until grease emerges from the joints.
17. Reinstall wheels – Reinstall both front wheels and torque lug nuts to specification.
18. Lower the vehicle – Lower the vehicle to the ground.
19. Check steering operation – Turn the steering wheel lock-to-lock to check for smooth operation.
20. Perform wheel alignment – Professional wheel alignment is mandatory.
21. Road test – Test drive the vehicle to verify straight-line stability and responsive steering.

• Material Verification: Confirms steel composition meets OE strength and durability specifications.
• Dimensional Inspection: King pin diameter, length, and all component dimensions verified against OEM tolerances.
• Hardness Testing: Material hardness verified for wear resistance.
• Surface Finish Inspection: Machined surfaces checked for proper finish.
• Component Compatibility: All kit components verified for proper fitment and function.
• Bearing Quality Inspection: Bearings tested for smooth operation and durability.
• Visual Inspection: 100% checked for defects, machining flaws, or damage.
• Packaged Safely: Protected and securely packaged to prevent damage during transit.

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea