The 20L Aluminum Auxiliary Air Tank is a lightweight, corrosion‑resistant compressed air reservoir designed for the Sitrak C7H heavy truck, providing essential air storage for braking and auxiliary systems.
This 20L Aluminum Auxiliary Air Tank kit includes the tank, pressure relief valve, mounting brackets, fittings, fasteners, and tubing – all engineered for a complete and reliable installation. The aluminium construction offers significant weight savings over steel, contributing to improved fuel efficiency and payload capacity.
For detailed fitment and compatibility information, please refer to the Sinotruk Catalog.
This 20L Aluminum Auxiliary Air Tank is a genuine OEM‑grade solution, ensuring perfect fitment and long‑term reliability for your Sitrak C7H, and is available for immediate worldwide delivery.
The Aluminium air reservoir assembly is the main storage vessel of the 20L Aluminum Auxiliary Air Tank system, holding 20 litres of compressed air at working pressure.
Its seamless aluminium construction provides excellent corrosion resistance and reduces weight compared to steel tanks. The cylinder is fitted with all necessary ports for inlet, outlet, and drain connections, and is pressure‑tested for safety.
The Pressure relief valve 0.6MPa non‑return is a safety device that protects the air system from over‑pressurisation. It opens at 0.6 MPa (6 bar) to vent excess air, and its non‑return feature prevents backflow.
This valve is essential for maintaining safe operating pressures within the 20L Aluminum Auxiliary Air Tank, ensuring the longevity of the pneumatic components.
The Air reservoir tightening strap assembly is a robust fastening system that securely mounts the 20L Aluminum Auxiliary Air Tank to the vehicle chassis.
It comprises two heavy‑duty straps with rubber lining to prevent chafing, and includes all necessary hardware for a vibration‑proof attachment.
The Nut base NG12 is a threaded mounting base that provides a stable anchor point for the elastic components and tubing connections within the air system.
Made from corrosion‑resistant steel, it ensures a secure and durable attachment for the 20L Aluminum Auxiliary Air Tank.
The Clamp spring NG12 is a retaining ring that secures the elastic component and maintains tension in the mounting system. Its spring‑steel construction provides reliable clamping force.
This component ensures that the 20L Aluminum Auxiliary Air Tank remains firmly in position, absorbing vibration and reducing noise.
The Elastic component NG12 is a rubber isolator that dampens vibrations and reduces noise transmission from the 20L Aluminum Auxiliary Air Tank to the chassis.
Its elastomeric material resists ageing and maintains its damping properties over a wide temperature range, enhancing the durability of the air system.
The Hex flange nut M8 is a self‑locking nut with an integral flange that provides a wide bearing surface, used for securing the mounting brackets of the 20L Aluminum Auxiliary Air Tank.
Its zinc‑plated finish offers excellent corrosion resistance, ensuring long‑term fastening integrity.
The Hex flange bolt M8 is a high‑strength fastener used to attach the air reservoir and its brackets to the vehicle structure. Its flange head distributes the clamping load evenly.
Made from grade 8.8 steel, it provides reliable and secure mounting for the 20L Aluminum Auxiliary Air Tank.
The Straight joint body NG12/NW9 is a pneumatic fitting that connects NG12 and NW9 tubing, allowing air to flow between different sections of the 20L Aluminum Auxiliary Air Tank system.
Its precision‑machined threads ensure leak‑free connections, and the brass construction resists corrosion.
The Straight joint body NG12/NW6 is a similar fitting designed for smaller diameter tubing (NW6). It is used for control lines and low‑flow applications within the 20L Aluminum Auxiliary Air Tank.
Its compact design facilitates routing in tight spaces, and its sealing performance is assured by precision O‑rings.
The Hex flange nut M10 is a larger locking nut used for heavier mounting points of the 20L Aluminum Auxiliary Air Tank, such as the bracket attachments.
Its flange provides a broad load‑spreading surface, and the self‑locking feature prevents loosening under vibration.
The Spacer sleeve is a cylindrical distance piece that maintains correct alignment and spacing between the tank and the bracket. It ensures that the 20L Aluminum Auxiliary Air Tank is properly positioned.
Made from steel with anti‑corrosion treatment, it provides a precise fit and prevents metal‑to‑metal contact.
The Hex flange bolt M10 is a heavy‑duty fastener used for the main mounting points of the 20L Aluminum Auxiliary Air Tank brackets. Its high tensile strength ensures a secure hold.
The flange head eliminates the need for a separate washer, simplifying installation and reducing parts count.
The Air reservoir bracket assembly is a rugged support structure that holds the 20L Aluminum Auxiliary Air Tank securely to the chassis. It is fabricated from heavy‑gauge steel with a powder‑coat finish.
Its design incorporates multiple mounting holes and reinforcement gussets, providing a stable platform that resists flexing and fatigue.
The Drain valve is a manual or automatic device that allows accumulated moisture and condensate to be expelled from the 20L Aluminum Auxiliary Air Tank, preventing corrosion and maintaining air quality.
Its lever or push‑button operation makes draining quick and easy, ensuring the air system remains dry and efficient.
The Pin is a hardened cylindrical dowel used to pivot or locate components within the 20L Aluminum Auxiliary Air Tank mounting system. Its precise diameter ensures accurate alignment.
Made from high‑carbon steel, it resists wear and provides reliable positioning for the brackets and straps.
The Cotter pin is a split pin used to secure castle nuts on the pivot pins, preventing them from loosening. It is a simple but critical safety component of the 20L Aluminum Auxiliary Air Tank assembly.
Made from mild steel with a zinc coating, it is easily installed and removed for maintenance.
The Flat washer is a standard load‑distributing ring used under bolt heads and nuts to protect the mounting surfaces of the 20L Aluminum Auxiliary Air Tank.
Made from hardened steel, it ensures even pressure distribution and prevents galling during tightening.
The 2 type Hex nut M10*1.25 is a fine‑thread nut used with the corresponding bolt for precise clamping. Its fine pitch provides greater tensile strength and resistance to loosening.
Ideal for high‑vibration applications like the 20L Aluminum Auxiliary Air Tank, it ensures a secure and lasting connection.
The Spring washer is a split‑ring lock washer that prevents bolted joints from loosening under vibration. It is used in conjunction with other fasteners in the 20L Aluminum Auxiliary Air Tank.
Its elastic action maintains tension, ensuring that the mounting hardware remains tight over time.
The Polyamide tube (Φ8*1) is a flexible nylon air line with 8 mm outer diameter and 1 mm wall thickness. It is used for control and signal lines in the 20L Aluminum Auxiliary Air Tank system.
Resistant to abrasion and chemicals, it provides reliable, leak‑free air transmission.
The Polyamide tube (Φ12*1.5) is a larger nylon tube for main air supply lines, with 12 mm OD and 1.5 mm wall thickness. It delivers high‑flow air to the 20L Aluminum Auxiliary Air Tank and downstream components.
Its flexibility facilitates routing, and its smooth bore minimises pressure drop.
| NO. | Part NO. | Name |
|---|---|---|
| 1 | WG900036079 | Aluminium air reservoir assembly Φ246/20L |
| 2 | WG900036051 | Pressure relief valve 0.6MPa non‑return |
| 3 | WG970036001 | Air reservoir tightening strap assembly (Φ246) |
| 4 | WG900036100 | Nut base NG12 |
| 6 | WG900036100 | Clamp spring NG12 |
| 7 | WG900036100 | Elastic component NG12 |
| 8 | ZQ32008T13F6 | Hex flange nut M8 |
| 9 | ZQ1840880TF6 | Hex flange bolt M8 |
| 10 | WG9000361204 | Straight joint body NG12/NW9 |
| 11 | WG9000361104 | Straight joint body NG12/NW6 |
| 12 | ZQ32010T13F6 | Hex flange nut M10 |
| 13 | WG9925360874 | Spacer sleeve |
| 14 | ZQ1841055TF6 | Hex flange bolt M10 |
| 15 | WG9731360002 | Air reservoir bracket assembly |
| 16 | WG9000361402 | Drain valve |
| 17 | Q5101048 | Pin |
| 18 | Q5003214 | Cotter pin |
| 19 | Q40110 | Flat washer |
| 20 | ZQ1841060TF6 | Hex flange bolt M10 |
| 21 | ZQ361B10 | 2 type Hex nut M10*1.25 |
| 22 | Q40310 | Spring washer |
| 23 | 190003179781 | Polyamide tube (Φ8*1) |
| 24 | 190003179785 | Polyamide tube (Φ12*1.5) |
The 20L Aluminum Auxiliary Air Tank offers significant weight savings over traditional steel tanks, contributing to improved fuel efficiency and payload. Its aluminium construction is naturally resistant to rust, ensuring long‑term durability.
The tank is pressure‑tested and coated for additional protection, making it ideal for demanding operating conditions.
Our 20L Aluminum Auxiliary Air Tank kit includes the tank, pressure relief valve, brackets, straps, fittings, fasteners, and polyamide tubing – everything needed for a complete installation.
This all‑in‑one solution simplifies procurement and ensures compatibility, saving time and reducing the risk of missing parts.
The 20L Aluminum Auxiliary Air Tank is designed for straightforward installation, with clear mounting points and all necessary hardware. The included straps and brackets provide a secure, vibration‑proof fit.
Detailed instructions and pre‑assembled components reduce installation time and effort.
We maintain a large inventory of 20L Aluminum Auxiliary Air Tank kits to ensure fast delivery to customers worldwide, with prompt shipping and real‑time tracking.
Our technical support team is available to assist with any installation questions, ensuring a smooth experience.
The 20L Aluminum Auxiliary Air Tank is a critical component of the pneumatic system, providing additional air storage capacity for braking, suspension, and auxiliary functions. It ensures that sufficient air pressure is available for repeated operations, especially during heavy braking or when multiple air‑consuming devices are active.
A properly sized and maintained air tank improves system response time and reduces compressor cycling, extending the life of the air compressor and other pneumatic components.
The 20L Aluminum Auxiliary Air Tank is designed to operate reliably in extreme temperatures, from freezing winters to hot summers. The aluminium alloy maintains its structural integrity and does not become brittle over time. The polyamide tubing and elastomeric components are also formulated to resist ageing and maintain flexibility across a wide temperature range.
When installing the 20L Aluminum Auxiliary Air Tank, ensure that the mounting surface is clean and free from sharp edges. Position the tank with the drain valve at the lowest point to facilitate moisture removal. Use the provided straps and brackets to secure the tank, and tighten all fasteners to the recommended torque.
Connect the air lines using the straight joint bodies and polyamide tubes, ensuring that cuts are square and fittings are fully inserted. Test the system for leaks using soapy water before returning the vehicle to service.
To keep your 20L Aluminum Auxiliary Air Tank in optimal condition, regularly drain condensate from the drain valve, especially during humid weather. Inspect the tank and fittings for signs of corrosion or damage, and check the polyamide tubes for abrasion or kinks.
Periodically verify that the pressure relief valve operates correctly by manually lifting the lever. Replace any worn or damaged components immediately to maintain the safety and reliability of the air system.
This 20L Aluminum Auxiliary Air Tank is designed for the Sitrak C7H heavy truck, fitting both 4×2 and 6×4 chassis configurations. It is compatible with all engine variants and is a direct replacement for the original equipment air tank.
The mounting points and port sizes are identical to the factory parts, ensuring a seamless installation without modifications.
Each 20L Aluminum Auxiliary Air Tank is pressure‑tested to 1.5 times its working pressure and inspected for weld quality and dimensional accuracy. The valves and fittings are tested for leakage and performance, ensuring that every component meets our high standards.
Our quality control process includes random sample testing to verify that the tank and its accessories are ready for reliable service.
We keep a large stock of 20L Aluminum Auxiliary Air Tank kits to ensure immediate dispatch. Orders are typically processed within 24 hours, and tracking information is provided for every shipment.
Our global logistics network ensures that your parts arrive quickly, minimising vehicle downtime and keeping your fleet operational.
Upgrading to a genuine 20L Aluminum Auxiliary Air Tank is a cost‑effective way to improve the performance and reliability of your vehicle’s air system. The lightweight aluminium construction reduces fuel consumption, and the durable materials extend the service life of the tank and associated components.
The comprehensive kit eliminates the need for multiple purchases, offering excellent value for money.
Aftermarket air tanks often use lower‑grade materials and may not meet pressure safety standards. Our 20L Aluminum Auxiliary Air Tank is manufactured to the same rigorous specifications as the original equipment, ensuring consistent quality and safety.
Choosing our genuine 20L Aluminum Auxiliary Air Tank guarantees a product that has been engineered for your Sitrak C7H, providing peace of mind and long‑term reliability.
The 20L Aluminum Auxiliary Air Tank complies with international pressure vessel standards and is certified for use in commercial vehicles. Its pressure relief valve ensures that the system remains within safe operating limits, protecting both the driver and the vehicle.
Regular inspection and maintenance of the air tank are recommended to ensure continued compliance with safety regulations.
The 20L Aluminum Auxiliary Air Tank is produced using advanced robotic welding and automated testing processes, ensuring consistent quality and precision. The aluminium alloy is selected for its excellent forming characteristics and corrosion resistance.
The fittings and fasteners are manufactured to tight tolerances, guaranteeing leak‑free connections and reliable performance.
The compact design of the 20L Aluminum Auxiliary Air Tank allows it to be mounted in tight spaces without sacrificing capacity. Its lightweight construction contributes to overall vehicle weight reduction, which can improve handling and reduce tyre wear.
The tank’s shape and port placement are optimised for easy plumbing, making it a practical choice for both new builds and retrofits.
We are committed to providing the highest quality 20L Aluminum Auxiliary Air Tank and supporting our customers with responsive service. If you have any questions or encounter any issues, our team is ready to assist.
Your satisfaction is our priority, and we strive to exceed your expectations with every order of the 20L Aluminum Auxiliary Air Tank.
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