| Size: | |
|---|---|
| Quantity: | |
Sinotruk HOWO T7H T5G Truck Spare Parts Diesel Fuel Tank Cover AZ9112550213 Fuel Tank Cap
The AZ9112550213 is a diesel fuel tank cap (fuel filler cap) designed primarily for Sinotruk (China National Heavy Duty Truck Corporation, CNHTC) HOWO series trucks. It ensures a secure, leak-proof seal to protect the diesel fuel system from contamination, evaporation, and theft. Available in both standard and locking versions, it's a critical component for operational safety and fuel security in commercial fleets.
| Attribute | Specification |
|---|---|
| Part Number | AZ9112550213 |
| Alternative Numbers / Cross References | — |
| Product Name | Diesel Fuel Tank Cap / Fuel Filler Cap |
| Primary Application | Sinotruk HOWO, Sitrak, Steyr-based models |
| Compatibility | Also fits Shacman, FAW, Dongfeng, Beiben, and other Chinese heavy truck brands |
| Material | Metal body (steel or aluminum alloy), rubber O-ring seal |
| Finish | Glossy silver; some variants have black or deep green painted coating |
| Dimensions | Approx. 120 × 36 mm (diameter × height) or 120×120×40 mm (L×W×H) depending on style |
| Weight | 0.35 – 0.50 kg (typically ~0.45 kg) |
| Type | Standard twist-on or lockable (anti-theft) version |
| Sealing Type | Integrated rubber gasket for vapor-tight and waterproof sealing |
| Origin | Manufactured in Shandong, China |
| Warranty | Up to 12 months against manufacturing defects (varies by supplier) |
 | |  |
✅ Leak-Proof Seal: High-quality rubber gasket prevents diesel leakage and fuel vapor loss.
✅ Weather Resistance: Protects against rain, dust, snow, and road debris entering the fuel tank.
✅ Corrosion Resistant: Durable metal construction withstands harsh environmental conditions and prolonged exposure to fuels.
✅ Anti-Theft Option: Locking-type models include key-operated mechanism to prevent unauthorized access and fuel siphoning.
✅ Clear Labeling: Often marked with "Diesel" or fuel type symbol to avoid misfuelling.
✅ Easy Installation: Twist-and-lock design allows quick installation/removal without tools.
| Series | Compatible Models |
|---|---|
| HOWO Series | HOWO 340, HOWO 380, HOWO A7, HOWO T7H, HOWO T5G, HOWO 70 Mining Truck |
| Sitrak Series | C7H, G7H, G5, C5H |
| Steyr Platform | Steyr King, Steyr K28, Steyr derivative models |
| Other CNHTC Lines | Hoka, Hohan |
This fuel cap is also compatible with many other Chinese heavy-duty truck platforms due to standardized fuel neck designs:
Shaanxi Auto (Shacman) – Various tractor and dump truck models
FAW Jiefang – J6, J7 series
Dongfeng Commercial Vehicles – DFAC, L3000, KL/KX series
Beiben Trucks – NG80, 2634, etc.
While AZ9112550213 is the primary OEM number, the following identifiers may be used interchangeably:
| Type | Part Number / Identifier |
|---|---|
| OEM Number | AZ9112550213 |
| Aftermarket References | ST12550213, HT-FUEL-CAP-AZ9112, CNHTC-AZ9112550213 |
| Universal Market Code | Diesel Tank Cap – HOWO Style |
| Supplier SKUs | Varies by vendor (e.g., Jinan Zichen Trading Co., Sinotruk Genuine Parts) |
Usage Scenarios & Applications
| Scenario | Application Benefit |
|---|---|
| Long-Haul Transport | Prevents fuel evaporation and maintains system integrity over long distances |
| Mining & Construction Sites | Dust/water protection critical in off-road, dirty environments |
| Fleet Operations | Anti-theft locks reduce fuel pilferage risks in parked vehicles |
| Cold Climates | Sealed design prevents ice formation and freezing of fuel inlet |
| Refueling Stations | Clear labeling helps drivers avoid gasoline/diesel mix-ups |
⚠️ Important Operating & Maintenance Notes:
| Recommendation | Details |
|---|---|
| ✅ Proper Installation | Ensure cap is fully tightened until sealed. Do not overtighten to avoid damaging threads or gasket. |
| ✅ Check Seal Regularly | Inspect rubber O-ring monthly for cracks, deformation, or hardening. Replace if damaged. |
| ✅ Use Correct Fuel Type | Confirm label says "Diesel" before refuelling — prevents accidental petrol (gasoline) filling which can damage engine. |
| ✅ Anti-Theft Key Management | Keep spare keys secured. Lost keys may require drilling out the lock (damaging the cap). |
| ❌ Avoid Aftermarket Cheap Copies | Low-quality replicas often use inferior seals and weak metals leading to leaks or breakage. |
| ️ Replacement Interval | Recommended every 2–3 years or immediately after impact damage or failed sealing test. |
| Detail | Description |
|---|---|
| Availability | Widely available globally via online B2B platforms |
| Major Platforms | Alibaba, AliExpress, Made-in-China, Global Sources |
| Authorized Suppliers | Sinotruk Genuine Parts Network, Jinan Zichen Trading Co., Ltd., CNHTC distributors |
| Packaging Options | |
| - Standard | Neutral white box / brown carton (1–10 pcs per box) |
| - Bulk Orders | Wooden crates for container shipments |
| - Custom Branding | Available for OEM/OBM orders (private label, logo printing) |
| MOQ (Minimum Order Quantity) | Typically 1 piece (sample), 10–50 pcs for wholesale |
| Shipping | Air freight (DHL, FedEx) or sea freight depending on volume |
| Benefit | Impact |
|---|---|
| ✔️ Fuel Security | Locking versions deter theft in unattended trucks |
| ✔️ Environmental Protection | Reduces VOC emissions from fuel evaporation |
| ✔️ System Integrity | Keeps water and contaminants out of fuel system |
| ✔️ Cost Savings | Prevents costly fuel loss and injector damage from dirty fuel |
| ✔️ Driver Confidence | Clearly labeled and easy to operate during daily operations |
