A reliable air reservoir is the cornerstone of your truck’s pneumatic system, ensuring consistent brake pressure and accessory operation. The WG9525360477 1 Aluminum Alloy Air Reservoir Assembly Φ310/50l from HOWO is engineered to deliver exceptional performance, combining a lightweight aluminum alloy construction with a generous 50‑liter capacity to meet the demands of modern heavy‑duty vehicles. As a critical Howo/Sitrak truck parts component, this reservoir offers superior corrosion resistance, reduced weight for improved fuel efficiency, and reliable pressure retention, all within a compact Φ310 mm diameter design. Whether you are replacing a worn steel tank or upgrading to a more durable solution, the WG9525360477 1 guarantees a perfect factory fit, long service life, and consistent air supply – making it the definitive choice for professional workshops and fleet operators worldwide.
The air reservoir stores compressed air generated by the compressor, providing a stable supply for braking, suspension, and other pneumatic accessories. The WG9525360477 1 is designed with a 50‑liter capacity and a 310 mm diameter, offering an optimal balance between volume and mounting flexibility. Its aluminum alloy construction reduces the overall weight by up to 40% compared to traditional steel tanks, contributing to better fuel economy and payload capacity. The internal surface is treated to prevent corrosion and oxidation, ensuring that the air remains clean and dry, protecting sensitive valves and actuators. With the WG9525360477 1, you gain a reservoir that not only meets but exceeds OEM specifications, providing reliable air pressure for all your pneumatic needs.
Lightweight
Aluminum Alloy
50L Capacity
Ample Air Supply
OEM Grade
Genuine HOWO
Corrosion Proof
Internal Treatment
Accurate engineering data ensures correct application and installation. The WG9525360477 1 is manufactured to stringent OEM tolerances, guaranteeing seamless integration with your HOWO air system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | WG9525360477 1 | Exact Match |
| Part Name | Aluminum Alloy Air Reservoir Assembly | Φ310/50l |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / Pneumatic systems | Brake / suspension / auxiliary |
| Material | Aluminum alloy (EN AW‑5754) | Lightweight, high strength |
| Capacity | 50 litres | Gross volume |
| Diameter | 310 mm (Φ310) | Compact footprint |
| Length | 680 mm | Total length |
| Max Working Pressure | 12 bar (174 psi) | Burst tested to 36 bar |
| Ports | 3 x M22 x 1.5 (inlet/outlet, drain) | Standard metric |
| Weight | 8.5 kg | Up to 40% lighter than steel |
| Surface Treatment | Internal anticorrosion coating | Long‑lasting purity |
| Warranty | 12 Months | Manufacturer Guarantee |
The WG9525360477 1 is produced using advanced welding and forming techniques that ensure a leak‑proof, durable structure. The aluminum alloy offers excellent fatigue resistance and thermal conductivity, reducing temperature buildup during continuous use. The internal surface is specially anodized and coated with a food‑grade epoxy to prevent oxidation and contamination, ensuring that the air delivered to your brakes and accessories remains dry and clean. The reservoir includes a robust drain valve for moisture removal, and the mounting brackets are reinforced to withstand vibration and road shocks. Every unit is pressure‑tested and inspected for weld quality, guaranteeing that the WG9525360477 1 meets the highest standards of safety and reliability.
The WG9525360477 1 is specifically designed for HOWO heavy‑duty trucks, including T7H, A7, and derivative models, where it serves as the primary or auxiliary air reservoir. It directly replaces the original steel tank with identical mounting hole locations, port orientations, and overall dimensions, ensuring a straightforward installation without modifications. Its compact 310 mm diameter and 50‑litre capacity make it ideal for both chassis and cab‑mounted configurations.
This reservoir is also compatible with many Sinotruk and other commercial vehicles that share the same pneumatic system architecture. To confirm fitment, always cross‑reference the OEM number on your existing tank with WG9525360477 1. If they match, this component will integrate seamlessly. Keeping this reservoir in your spare parts inventory enables rapid replacement of corroded or damaged tanks, minimising downtime and maintaining air system integrity.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
Φ310 / 50L
Standard Size
Direct Replacement
No Modifications
Upgrading to the WG9525360477 1 brings immediate and measurable benefits. The reduced weight improves fuel efficiency and increases payload capacity, while the corrosion‑resistant interior ensures that your air remains clean, preventing contamination of valves, brake chambers, and air dryers. The stable pressure delivery enhances brake response and consistency, improving safety and driver confidence.
The 50‑litre capacity provides ample air reserve for multiple brake applications without rapid pressure drop, which is essential for heavy hauling and mountainous terrain. The robust construction also reduces maintenance frequency, as the aluminum alloy does not rust, eliminating the need for internal coating repairs. For fleet operators, the longevity and reliability of a genuine HOWO reservoir translate to lower total cost of ownership and higher vehicle availability. By investing in the WG9525360477 1, you ensure that your pneumatic system operates at peak efficiency, delivering the air pressure you need, when you need it.
Installing the WG9525360477 1 Air Reservoir is a straightforward procedure. Begin by safely depressurising the air system and disconnecting the battery. Remove the old reservoir by disconnecting the air lines and drain valve, then unbolt it from its mounting brackets.
Clean the mounting area and transfer any reusable fittings to the new reservoir. Position the new tank and secure it with the original brackets and bolts, torquing them to specification. Reconnect the air lines, ensuring they are tight and leak‑free, and reattach the drain valve. Slowly pressurise the system and check for leaks using soapy water. After installation, test the system operation and check the drain valve for proper function. Periodically drain accumulated moisture to prolong the life of your air system. With correct installation, the WG9525360477 1 will provide years of dependable service.
Pro Tip: When replacing the reservoir, always use new O‑rings or sealing washers on the port connections. Old seals may harden and cause leaks. The WG9525360477 1 comes with standard metric ports; use compatible fittings for a secure connection.
Genuine HOWO components are engineered to the highest standards, and the WG9525360477 1 Aluminum Reservoir is no exception. Aftermarket tanks often use inferior aluminium grades, poor welding, or lack internal corrosion protection, leading to leaks, contamination, and premature failure. HOWO’s reservoir is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance.
By choosing the WG9525360477 1, you benefit from HOWO’s rigorous testing, including pressure cycling, vibration, and salt spray tests. This ensures that the reservoir withstands the harsh conditions of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the WG9525360477 1?
A: It is designed for HOWO T7H, A7, and other models with 50L air reservoirs, as well as many Sinotruk trucks with the same pneumatic system.
Q: What are the advantages of aluminium over steel?
A: Aluminium is lighter, resists rust, and dissipates heat better, extending component life and improving fuel economy. The WG9525360477 1 offers these benefits without compromising strength.
Q: Can I use this reservoir with my existing fittings?
A: Yes, it features standard M22 x 1.5 ports, compatible with most truck air fittings. Always check your existing hose ends and adapters.
Q: How do I verify the correct part?
A: Check the OEM number stamped on your existing reservoir. If it matches WG9525360477 1, this is the exact replacement. Consult your vehicle’s parts manual for confirmation.
Order your WG9525360477 1 Air Reservoir today! Explore our complete range of genuine HOWO and Sinotruk pneumatic components at Howo/Sitrak truck parts and keep your air system performing at its best.
The WG9525360477 1 Aluminum Alloy Air Reservoir from HOWO is a testament to intelligent design and robust construction. By choosing this genuine component, you ensure that your truck’s pneumatic system benefits from reduced weight, superior corrosion resistance, and consistent pressure delivery, enhancing safety and operational efficiency. Whether you are a professional mechanic or a fleet manager, this reservoir offers the performance, durability, and exact fit required for modern heavy‑duty trucks. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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