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The genuine steering gear with OEM number 1316303071 is engineered to deliver precise steering response, exceptional road feel, and long‑term reliability for SINOTRUK Sitrak heavy‑duty trucks. Designed as a direct replacement, this recirculating‑ball steering gear ensures seamless integration with the vehicle’s hydraulic system and chassis architecture. As a critical safety component within the Sinotruk sitrak parts portfolio, the 1316303071 steering gear guarantees factory‑grade performance, reduced steering effort, and superior durability under the most demanding operating conditions.
The 1316303071 steering gear is far more than a simple replacement part; it is a precision‑engineered assembly that meets Sinotruk’s rigorous OEM standards for the Sitrak series. This recirculating‑ball design incorporates a hardened worm shaft, high‑capacity ball nuts, and a meticulously machined sector shaft, all working together to deliver smooth, responsive steering with minimal free play. In heavy haulage, construction, and long‑haul applications, steering precision directly impacts driver safety, tire wear, and fuel efficiency. The genuine 1316303071 steering gear ensures consistent hydraulic power assistance, eliminating the unpredictable steering feel often associated with inferior aftermarket units.
Rigorous endurance testing on Sitrak C7H and C9H chassis has demonstrated that using the original 1316303071 reduces steering system failures by over 68% compared to generic alternatives. Its optimized internal clearances and advanced sealing technology prevent fluid leaks, even under sustained high‑pressure conditions. For fleet operators, this translates directly into fewer roadside breakdowns, lower maintenance expenditures, and improved driver satisfaction.
High‑efficiency hydraulic assist reduces steering effort by up to 30%, minimizing driver fatigue during urban deliveries and tight yard maneuvering.
Triple‑lip seals with integrated dust excluders prevent contamination ingress and fluid loss, ensuring long‑term reliability even in harsh environments.
Precision‑tuned torsion bar ensures consistent steering torque across all speed ranges, from parking lot to highway cruising.
| Parameter | Specification |
|---|---|
| OEM Number | 1316303071 |
| Product Type | Recirculating Ball Hydraulic Steering Gear |
| Brand Compatibility | SINOTRUK Sitrak (C7H, C9H, A7, TX series, Howo T7) |
| Steering Ratio | 23.1 : 1 (variable ratio) |
| Max. Input Torque | 380 Nm |
| Max. Output Torque | 7,200 Nm |
| Hydraulic Pressure | 13 – 15 MPa (working) |
| Flow Rate | 9 – 13 L/min |
| Operating Temperature | -40°C to +125°C |
| Weight | 24.8 kg (approx.) |
When replacing the steering gear with the genuine 1316303071, always disconnect the battery and relieve hydraulic system pressure before beginning. Use new O‑rings and sealing washers to ensure leak‑free connections. Torque the mounting bolts to 210 Nm and the pitman arm nut to 420 Nm as specified in Sinotruk’s service manual. After installation, fill the system with approved Dexron III or ZF‑specified hydraulic fluid and bleed the system thoroughly by turning the steering wheel lock‑to‑lock with the engine idling until all air bubbles are expelled.
Regular maintenance should include checking for fluid leaks, inspecting the dust cover for cracks, and verifying the torque of the pitman arm nut every 50,000 km. Using the genuine 1316303071 steering gear ensures that the steering column angle and universal joint alignment remain within factory tolerances, preventing premature wear of the intermediate shaft and reducing overall steering system vibration.
Every 1316303071 steering gear is manufactured in IATF 16949 certified facilities, with 100% final testing on a hydraulic test bench. Each unit undergoes leak testing, internal pressure validation, and steering torque measurement to ensure it meets Sinotruk’s stringent quality standards. The housing is constructed from high‑strength ductile iron (GGG‑50) and coated with a corrosion‑resistant paint that withstands over 1,000 hours of salt spray testing. Counterfeit gears often use inferior cast iron that can crack under stress; the genuine 1316303071 guarantees safety, durability, and full warranty coverage.
Aftermarket steering gears frequently suffer from poor internal machining, resulting in excessive play, steering wander, and premature seal failure. In contrast, the genuine 1316303071 features precision‑ground ball screws and matched ball sets that provide consistent torque feel throughout the entire steering range. Many non‑original units also have improperly set torsion bars, causing heavy steering at low speeds or overly light steering on highways. By choosing the original 1316303071 steering gear, you eliminate these risks and preserve the vehicle’s original handling characteristics and safety margins.
Additionally, the genuine part includes a unique serial number traceable to the production batch, ensuring warranty coverage and full compliance with Sinotruk service bulletins. For any fleet operating Sitrak trucks, investing in the 1316303071 steering gear is an investment in driver safety, vehicle uptime, and long‑term asset value.
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