Drag Link Steering Linkage with Forged Steel Tube Heat-Treated Ball Studs and Greaseable Design for Isuzu NPR 4HK1

Drag link connects the steering gear pitman arm to the steering knuckle, transmitting steering input to the wheels. Ensures precise steering control and vehicle stability for Isuzu NPR trucks.

The Drag Link (OEM Numbers: 8-98006794-0 / 8980067940 and 8-87034286-0 / 8870342860) is a premium-quality, direct replacement steering component designed for Isuzu NPR series medium-duty trucks equipped with the 4HK1 diesel engine.

• OE Quality: Manufactured to Isuzu dimensional and material specifications for perfect fit and reliable steering.
• Heavy-Duty Construction: Forged steel tube and heat-treated ball studs withstand high steering loads and road shocks.
• Precision Ball Joints: Smooth articulation with minimal free play for accurate steering response.
• Greaseable Design: Includes Zerk fittings for periodic lubrication, extending service life.
• Sealed Dust Boots: Protect ball joints from dirt, water, and road debris.
• Corrosion Resistant: Coated or plated finish resists rust and weathering.
• Restores Steering Precision: Eliminates vagueness, free play, and clunking noises.
• Direct Replacement: Matches OE mounting points and taper angles - simple bolt-on installation.
• Safety Critical: Reliable drag link ensures vehicle control and tire life.
• Cost-Effective: Affordable alternative to genuine Isuzu parts.

This drag link is specifically designed for Isuzu NPR trucks with 4HK1 engine.

• ISUZU NPR (NPR59, NPR66, NPR70, NPR71, NPR75, etc. with 4HK1)
• May also fit other Isuzu medium trucks with similar steering geometry - verify.

• 4-Cylinder, Inline Diesel, Common Rail
• Displacement: 5.2L (5193cc)

Installation steps (typical for drag link):

1. Safely lift and support the front axle. Turn wheels to access the drag link.
2. Remove the cotter pins and castle nuts from both ball joint studs.
3. Use a ball joint separator to detach the drag link from the pitman arm and steering knuckle/tie rod.
4. Remove the old drag link.
5. Compare new drag link with old - verify length, taper, and thread direction.
6. Apply anti-seize to the stud threads (optional).
7. Install the new drag link - hand-tighten the castle nuts.
8. Torque the castle nuts to manufacturer specification (typically 120-180 Nm for medium trucks).
9. Tighten further if needed to align cotter pin hole - do not back off. Insert new cotter pins.
10. Grease the ball joints using a grease gun until fresh grease exits the boots.
11. Lower vehicle and perform a wheel alignment (toe adjustment may be affected).
12. Test drive - check for straight-line stability and no clunking.

• Material Verification: Steel alloy composition and tensile strength tested.
• Dimensional Inspection: Overall length, ball stud taper, thread pitch, and housing geometry verified.
• Hardness Testing: Ball stud surface hardness (HRC 55-62) and core hardness checked.
• Pull-Out Strength Test: Ball stud push-out force verified.
• Torque Rotation Test: Swivel torque measured to ensure smooth articulation.
• Boot Integrity Check: Dust boots inspected for tears and proper sealing.
• Visual Inspection: 100% checked for forging defects, burrs, or damage.
• Packaged Safely: Coated with anti-rust oil, wrapped in plastic, boxed with foam.

• 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

For pricing, availability, or bulk purchase of the Drag Link 8-98006794-0 For Isuzu NPR 4HK1 Steering Linkage 8980067940 Truck Parts, please contact our sales team for a competitive quote and expert technical support.