Sinotruk Gearbox Parts

  • Sinotruk HOWO SITRAK A7T7C7HCH7 Dump Truck Bypass Damper Steering Gear (812W61942-0004) - Heavy-Duty OEM Replacement Part
Sinotruk HOWO SITRAK A7T7C7HCH7 Dump Truck Bypass Damper Steering Gear (812W61942-0004) - Heavy-Duty OEM Replacement Part

Sinotruk HOWO SITRAK A7T7C7HCH7 Dump Truck Bypass Damper Steering Gear (812W61942-0004) - Heavy-Duty OEM Replacement Part

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  • Product description: Genuine Sinotruk HOWO/SITRAK dump truck bypass damper steering gear (812W61942-0004). OEM-quality replacement for A7, T7, C7H, CH7 models. Improves steering stability for heavy loads
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Sinotruk HOWO/SITRAK Bypass Damper Steering Gear (812W61942-0004) - OEM Replacement

✔ Compatibility: HOWO A7, T7, C7H, CH7 Dump/Tractor Trucks
✔ Material: High-strength alloy steel housing
✔ Type: Hydraulic bypass damper steering system
✔ Pressure Rating: 12-16 MPa (1740-2320 PSI)
✔ Fluid Compatibility: ATF Dexron III or equivalent
✔ Temperature Range: -40°C to +120°C
✔ Weight: 18.5 kg
✔ Certification: ISO/TS 16949, Sinotruk OEM standards

Key Features:

  • Shock Absorption: Reduces steering wheel vibration on rough terrain
  • Leak-Proof Design: Double-lip seals prevent hydraulic fluid leakage
  • Precision Control: Maintains stable steering under heavy dump loads
  • Corrosion Resistance: Phosphate coating for long service life

Installation Notes:

  1. Bleed steering system completely before installation
  2. Torque mounting bolts to 120 Nm (89 ft-lbs)
  3. Use only compatible hydraulic fluid (Dexron III)
  4. Check for leaks after 50km of operation