T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
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AZ9731430430
Sinotruk HOWO
| Attribute | Specification |
|---|---|
| Official Name | Drag Link Assembly / Steering Longitudinal Rod |
| Common Names | Steering Drag Rod, Tie Rod (in some contexts), Steering Transmission Bar |
| OEM Brand | SINOTRUK (China National Heavy Duty Truck Group) |
| Part Number | AZ9731430430 |
| Rod Body Material | High-strength seamless steel tube (Grade 45# carbon steel or alloy structural steel) |
| Ball Joint Material | Forged alloy steel (40Cr or 20CrMnTi), surface hardened by induction quenching |
| Surface Treatment | Anti-rust coating; ball pins with chrome plating for wear resistance |
| Total Length | Approx. 885 mm – 900 mm (standard heavy-duty configuration) |
| Rod Diameter | ~Φ50 mm – Φ60 mm |
| Ball Joint Type | Sealed spherical ball-and-socket joint with grease fitting (on some versions) |
| Dust Boot Material | Modified polyurethane rubber — oil-resistant, UV-resistant, and anti-aging |
| Weight | Approx. 11.5 kg – 13.0 kg |
| Operating Temperature Range | -40°C to +100°C |
| Design Life | Up to 150,000 km under normal operating conditions |
| Origin | Jinan, Shandong Province, China |
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Confirm correct model: Use SINOTRUK EPC system to verify compatibility with your VIN/chassis.
Inspect new unit: Check for bent rod body, damaged threads, cracked dust boots, or loose ball joints.
Clean mounting areas: Remove rust, dirt, and old grease from pitman arm and steering lever.
Verify tools: Use torque wrench, ball joint separator (if needed), and protective gloves.
Lift Front Axle Safely: Support with jack stands — never work under unsupported weight.
Remove Old Drag Link:
Loosen castle nuts at both ends.
Use puller if ball stud is seized.
Extract carefully without damaging surrounding components.
Position New Drag Link (AZ9731430430):
Align ball studs with holes in pitman arm and steering lever.
Ensure dust boots face outward and are not twisted.
Install and Tighten Fasteners:
Insert tapered pins into levers.
Install new cotter pins or locking nuts.
Torque to specification: Typically 250–300 N·m (confirm per manual).
Final Inspection:
Rotate steering lock-to-lock — no binding or interference.
Visually check boot integrity and clearance.
