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
| Quantity: | |
|---|---|
WG9625478228
Sinotruk HOWO
| Attribute | Specification |
|---|---|
| Official Name | Power Steering Gear Box / Recirculating Ball Steering Unit |
| Common Names | Steering Box, Pitman Box, ZF-Type Steering Gear |
| OEM Brand | SINOTRUK (with licensed ZF 8098 technology) |
| Part Number | WG9625478228 |
| Technical Platform | Based on ZF 8098 Series (ZF 8098 955 831 equivalent) |
| Shaft Type | Coarse Shaft Output (larger spline diameter; not interchangeable with fine-shaft models) |
| Rated Working Pressure | 15.0 – 17.0 MPa (~2,175 – 2,465 psi) |
| Maximum Output Torque | ~6,000 – 8,000 N·m |
| Steering Ratio | Variable ratio: more responsive at center, more mechanical advantage at lock |
| Weight | Approx. 42.0 kg – 45.0 kg |
| Housing Material | High-strength ductile cast iron |
| Internal Components | Hardened piston, rack, worm gear, and recirculating ball nut |
| Sealing System | Multi-lip rubber seals resistant to ATF and hydraulic degradation |
| Operating Fluid | High-quality hydraulic power steering fluid (e.g., ATF or OEM-specified PSF) |
| Temperature Range | -40°C to +120°C (suitable for arctic to desert operations) |
| Mounting Style | Bracket-mounted with reinforced chassis attachment points |
| Origin | Jinan, Shandong Province, China |
Name1
Name2
Confirm correct model: Use SINOTRUK EPC system to verify compatibility with your VIN/chassis.
Inspect new unit: Check for damaged seals, dents, corrosion, or missing parts.
Drain old oil: Flush system if contamination suspected.
Prepare tools: Torque wrench, hose clamps, drip pan, clean rags.
Remove Old Steering Gear Box:
Disconnect hydraulic lines (cap immediately to prevent contamination).
Detach pitman arm and steering column joint.
Remove mounting bolts.
Install New Gear Box (WG9625478228):
Align with mounting brackets.
Insert and hand-tighten M16/M20 bolts.
Reconnect Mechanical Links:
Reattach pitman arm securely.
Reconnect steering column u-joint.
Reconnect Hydraulic Lines:
Install high-pressure hoses.
Tighten fittings properly.
Fill with Correct Fluid:
Add specified hydraulic oil (e.g., ATF or OEM PSF) to reservoir.
Bleed Air from System:
Lift front axle off ground.
Start engine and slowly turn steering wheel left/right repeatedly until no bubbles appear in reservoir.
Repeat 3–5 times.
Final Torque Check:
Mounting bolts: Typically 200–250 N·m
Pitman arm nut: 600–700 N·m (check manual)
| Attribute | Specification |
|---|---|
| Official Name | Power Steering Gear Box / Recirculating Ball Steering Unit |
| Common Names | Steering Box, Pitman Box, ZF-Type Steering Gear |
| OEM Brand | SINOTRUK (with licensed ZF 8098 technology) |
| Part Number | WG9625478228 |
| Technical Platform | Based on ZF 8098 Series (ZF 8098 955 831 equivalent) |
| Shaft Type | Coarse Shaft Output (larger spline diameter; not interchangeable with fine-shaft models) |
| Rated Working Pressure | 15.0 – 17.0 MPa (~2,175 – 2,465 psi) |
| Maximum Output Torque | ~6,000 – 8,000 N·m |
| Steering Ratio | Variable ratio: more responsive at center, more mechanical advantage at lock |
| Weight | Approx. 42.0 kg – 45.0 kg |
| Housing Material | High-strength ductile cast iron |
| Internal Components | Hardened piston, rack, worm gear, and recirculating ball nut |
| Sealing System | Multi-lip rubber seals resistant to ATF and hydraulic degradation |
| Operating Fluid | High-quality hydraulic power steering fluid (e.g., ATF or OEM-specified PSF) |
| Temperature Range | -40°C to +120°C (suitable for arctic to desert operations) |
| Mounting Style | Bracket-mounted with reinforced chassis attachment points |
| Origin | Jinan, Shandong Province, China |
Name1
Name2
Confirm correct model: Use SINOTRUK EPC system to verify compatibility with your VIN/chassis.
Inspect new unit: Check for damaged seals, dents, corrosion, or missing parts.
Drain old oil: Flush system if contamination suspected.
Prepare tools: Torque wrench, hose clamps, drip pan, clean rags.
Remove Old Steering Gear Box:
Disconnect hydraulic lines (cap immediately to prevent contamination).
Detach pitman arm and steering column joint.
Remove mounting bolts.
Install New Gear Box (WG9625478228):
Align with mounting brackets.
Insert and hand-tighten M16/M20 bolts.
Reconnect Mechanical Links:
Reattach pitman arm securely.
Reconnect steering column u-joint.
Reconnect Hydraulic Lines:
Install high-pressure hoses.
Tighten fittings properly.
Fill with Correct Fluid:
Add specified hydraulic oil (e.g., ATF or OEM PSF) to reservoir.
Bleed Air from System:
Lift front axle off ground.
Start engine and slowly turn steering wheel left/right repeatedly until no bubbles appear in reservoir.
Repeat 3–5 times.
Final Torque Check:
Mounting bolts: Typically 200–250 N·m
Pitman arm nut: 600–700 N·m (check manual)
