The WG9731470070 Steering Power Cylinder is basically the "heart" of your HOWO heavy-duty truck's hydraulic steering system. It takes hydraulic pressure and turns it straight into steering force-so drivers don't have to grunt and strain just to turn the wheel. When you're doing heavy-haul work that needs smooth, dead-on control, this part delivers exactly what you're after.
Hook it up to your truck's steering gear, and you'll immediately feel how much easier the truck is to maneuver. Drivers stay way more comfortable too. This comes in clutch on long drives, when the truck's packed full, or when you're navigating bumpy, tricky roads. If you're operating in high-risk spots-construction yards, mines, mountain passes, busy city traffic-this reliable steering helper isn't just a nice-to-have. It's a must.
Fit & Compatibility
- Compatible Models: HOWO 6×4/8×4 dump trucks, tractors, concrete mixers
- Engine Match: Slips right into WD615, WD618, MC11, and other common HOWO engines-no extra adjustments needed
- OE/OEM Number: WG9731470070 (direct factory replacement-just swap it in and you're good to go)
- Value-Added Service: Free VIN part checks. Just shoot over your VIN, and we'll make sure it's a perfect fit
Tech Specs
- Type: Hydraulic steering power cylinder
- Dimensions & Weight: 520×110×110 mm; around 9.5 kg
- Core Materials:
- Cylinder body: High-strength seamless steel tube
- Piston rod: 45# steel-heat-hardened and chrome-plated for maximum durability
- Hydraulic Performance:
- Max working pressure: 16 MPa
- Operating temperature range: -40℃ to +90℃ (handles extreme cold and heat like a pro-no breakdowns)
- Sealing System: Multi-layer oil seals that hold fluid tight-no leaks, we guarantee it
Materials & Production
We build the cylinder body using high-grade seamless steel, finished with precision honing to achieve ultra-smooth inner walls. This ensures steady hydraulic fluid flow and consistent performance, even under high pressure. The piston rod is made of hardened 45# carbon steel with chrome plating, which significantly improves wear and corrosion resistance for a longer service life.
Every unit undergoes strict production processes, including CNC precision machining, deep-hole honing (surface roughness ≤ Ra0.4), automated welding, and high-pressure cleaning to remove all contaminants. We source raw materials exclusively from certified suppliers, and all production is carried out on fully automated CNC lines. Thus, every cylinder meets consistent high-quality standards with no compromises on quality.
Quality & Testing
- Quality Standard: OEM-grade
- Comprehensive Testing:
- Dimensional accuracy check
- Pressure resistance test
- Seal leakage inspection
- Fatigue and endurance testing (mimics years of heavy use)
- Certifications: IATF16949, ISO9001-globally trusted quality management certifications
- Traceability: Each cylinder has a unique batch code. If you ever need to, we can trace its whole production path
Service Life & Performance
With normal use, this steering power cylinder lasts at least 300,000 km or 3 years. Its optimized inner design keeps hydraulic output steady and steering snappy-super important for keeping drivers in control when it matters most.
The upgraded sealing system cuts down on oil leaks, and enhanced surface treatments on key parts fight off wear and rust. It holds up great in tough conditions: blistering heat, dusty mines, and non-stop heavy-load jobs.
Failure Prevention & Maintenance Savings
Most steering cylinder headaches-oil leaks, weak assist, seal failures-come from cheap materials or shoddy work. The WG9731470070 HOWO Steering Power Cylinder fixes these issues with stronger materials, precision honing, and high-performance seals.
On average, it cuts maintenance needs by up to 35%-that's a big win for fleet managers looking to save on long-term operating and repair costs.
Packaging & Labeling
- Options: Neutral packaging, custom branding (with your logo), and sturdy cartons or wooden cases for bulk orders
- Protection: Shock-absorbent padding, moisture-proof wrapping, and rust-prevention treatment-keeps parts in perfect shape during shipping
- Clear Markings: Every unit has the OE number, barcode, batch code, and all needed compliance info-easy to spot and identify
Lead Time & Inventory
- Stock Status: Fast-moving item-usually in stock for immediate shipping
- Replenishment Lead Time: 7–10 business days for standard production runs
- MOQ: 1 pc
After-sales & Technical Support
- Fitment Help: Our tech team can check compatibility using your truck's VIN
- Installation Guidance: Detailed installation drawings or step-by-step tips-just ask
- Warranty: 6-month warranty against manufacturing defects
FAQ
1.Q: Can you confirm if this fits my truck using the VIN?
A: Absolutely. Send your truck's VIN to our tech team, and we'll let you know if this cylinder's the right match for your HOWO.
2.Q: How do I make sure WG9731470070 HOWO Steering Power Cylinder fits my vehicle?
A: Three simple checks:
1. Check your truck model (e.g., HOWO 6×4, 8×4 dump truck/tractor)
2. Confirm your engine type (e.g., WD615, MC11)
3. Match the OE number: WG9731470070
3.Q: What payment methods do you accept?
A: We take T/T, L/C, and Western Union.
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