King Pin Kit KP-426 04431-25010 For Toyota RK110 Steering Knuckle Repair Set

Features & Advantages 

• Complete Kit: Contains all required components for a full king pin rebuild – no need to source bushings, bearings, or seals separately

• OE Quality: Manufactured to Toyota dimensional and metallurgical specifications for perfect fit and function

• High-Strength 45# Steel: Precision-ground and heat-treated for maximum wear resistance (HRC 55-63)

• Premium Bushings: High-quality bushings ensure even lubrication and long life

• Thrust Bearing (included): Reduces friction between axle beam and steering knuckle, providing smooth steering feel

• Eliminates Steering Play: Restores proper clearances, removing vertical end play and horizontal movement

• Reduces Tire Wear: Prevents uneven tire wear caused by loose king pins, saving cost on premium tires

• Direct Replacement: Engineered to match OE dimensions – proper installation may require reaming

• Extended Service Life: With proper lubrication (grease at regular intervals), this kit can last hundreds of thousands of miles

• ISO9001/TS16949 Certified: Manufactured under strict quality management systems

• 12-Month Warranty: Guaranteed quality and reliability

• Safety Critical: A reliable king pin kit ensures predictable steering and safe vehicle control

  

Vehicle & Engine Compatibility

This king pin kit is specifically designed for Toyota vehicles with conventional solid front axle (I-beam). Common applications include:

Toyota Vehicle Models:

• Toyota RK110 (Stout)

• Toyota Stout (RK110, YK110)

• Toyota Dyna (LY20, LY30, LY50, LY60)

• Toyota ToyoAce (LY5#, LY6#, YY5#)

• Toyota Light Duty Trucks (1987-1995)

Engine Compatibility:

• Not engine-specific – fits various Toyota engines (5R, 4Y, etc.)

Installation Notes

Installation steps:

1. Safely lift and support vehicle – remove front wheels and brake components (calipers, drums, hubs) as needed.

2. Remove steering knuckle – disconnect tie rod, drag link, and steering arm.

3. Press out old king pins – use a hydraulic press. Remove old bushings from the axle beam.

4. Inspect axle beam bores – check for ovality or damage. Clean thoroughly.

5. Install new bushings – press into axle beam (upper and lower). Ensure oil holes align.

6. Ream bushings to size (if required) – using a precision reamer to achieve correct king pin clearance.

7. Lubricate king pin – apply high-quality chassis grease to the pin and bushings.

8. Assemble thrust bearing – place on lower or upper side as per OE orientation.

9. Insert king pin – tap into place using brass drift. Install lock pins or retaining bolts.

10. Check end play – use dial indicator to measure vertical movement. Should be ≤ 0.005 inches. Adjust with shims if necessary.

11. Reassemble steering knuckle, seals, caps – install dust caps and grease fittings.

12. Grease thoroughly – pump grease until fresh grease appears from all seals.

13. Reinstall wheels and brake components – torque lug nuts and other fasteners.

14. Road test – check for smooth steering, no binding, no play. Re-torque after 500 km.

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