The Pneumatic tube valve component is a vital control system that manages the pneumatic circuits for range‑shift and splitter operations in the HOWO A7 8X4 transmission. This component integrates valves, seals, hoses, and fasteners to ensure reliable air distribution and precise actuation of the clutch and gear selection mechanisms. The Pneumatic tube valve component is engineered to deliver consistent performance under varying pressure and temperature conditions, making it essential for smooth and responsive gear changes.
At howo Parts, we supply a complete Pneumatic tube valve component that includes all necessary subcomponents: Gasket, Pin, Spring, Shealth, O ring 26500170 GB3452.1, Straight through（NPT 1/8-4*2）, Valve assembly, Seal washer, Hollow bolt, Hex screw, Spring washer, and Hose assembly. Each part of this Pneumatic tube valve component is manufactured to original equipment specifications, ensuring a perfect fit and dependable operation over millions of kilometres.
This Pneumatic tube valve component simplifies servicing by providing a matched set of valves, seals, and lines. With correct installation and routine inspection, the part maintains proper air pressure, prevents leaks, and extends the life of the shift actuators. Trust our Pneumatic tube valve component to keep your HOWO A7 8X4 shifting with confidence and precision.
Gasket is a compressible sealing element placed between valve bodies and mounting surfaces. It prevents air leaks and ensures the integrity of the part.
Pin is a hardened dowel that locks moving parts in position. It provides positive engagement and prevents unwanted movement within the part.
Spring applies a return force to the valve mechanism, ensuring it returns to the default position when air pressure is released. It is a critical component of the part.
Shealth is a protective bushing that supports moving parts and reduces friction, ensuring smooth operation of the part.
O ring 26500170 GB3452.1 is a standard O‑ring that seals the air ports, preventing leakage and maintaining pressure in the part.
Straight through（NPT 1/8-4*2） is a pneumatic fitting that connects tubing to the valve. Its NPT thread ensures a secure, leak‑free connection in the part.
Valve assembly is the central control unit that directs air flow to the appropriate actuators. It is the brain of the part.
Seal washer is a metal‑and‑rubber composite washer that seals bolt or hollow bolt connections, preventing air loss in the part.
Hollow bolt is a fluid‑passage bolt that allows air to flow through its centre while providing a strong mechanical joint in the part.
Hex screw is an internal hex fastener used to secure valve covers and brackets. It provides reliable clamping force in the part.
Spring washer prevents fastener loosening under vibration, maintaining the integrity of the part.
Hose assembly is a flexible line that conveys air between the valve and the actuators. It is designed to withstand pressure and environmental conditions in the part.
| Part NO. | Description |
|---|---|
| WG2229205023 | Gasket |
| WG2229205015 | Pin |
| WG2229205004 | Spring |
| WG2229205017 | Shealth |
| WG9003071700 | O ring 26500170 GB3452.1 |
| WG2229205006 | Straight through（NPT 1/8-4*2） |
| WG2203205010 | Valve assembly |
| WG2229205024 | Gasket |
| WG2203205003 | Valve assembly |
| Q72314 | Seal washer |
| 19000396261 | Hollow bolt |
| Q218B0880 | Hex screw |
| Q40308 | Spring washer |
| WG2203205019 | Hose assembly |
| WG2203205018 | Hose assembly |
Every part in our Pneumatic tube valve component is produced to the same standards as the original equipment. We use premium materials and precision machining to ensure reliable air control and long service life.
The combination of O‑rings, Gaskets, and Seal washers in our Pneumatic tube valve component guarantees a completely sealed system, preventing pressure loss and ensuring consistent actuator response.
We supply the Pneumatic tube valve component as a comprehensive set, including all valves, hoses, and fasteners. This simplifies ordering and speeds up your transmission service.
Our inventory of Pneumatic tube valve components is ready for immediate dispatch, and our technical team is available to assist with installation and troubleshooting.
The Pneumatic tube valve component is responsible for directing compressed air to the range and splitter actuators, enabling smooth gear changes in the HOWO A7 8X4. Any failure in this Pneumatic tube valve component can cause gear selection issues, clutch slippage, or complete loss of shift function. Maintaining this system with genuine parts ensures reliable operation.
The O‑rings and Seal washers in our Pneumatic tube valve component are selected for their resistance to temperature extremes and chemical degradation. The Hollow bolts and Straight through fittings maintain a secure connection, preventing leaks that could reduce system pressure.
When installing the Pneumatic tube valve component, replace all Gaskets and O‑rings. Apply the correct torque to Hollow bolts and Hex screws. Ensure that Hose assemblies are routed without kinks and secured with Spring washers to prevent loosening.
Inspect the Pneumatic tube valve component every 50,000 km. Check for air leaks, damaged O‑rings, and corroded fittings. Replace any worn Seal washers or Springs to maintain proper function.
Our Pneumatic tube valve component is specifically designed for the HOWO A7 8X4 transmission, fitting all variants with pneumatic range‑shift systems. All port sizes and thread types match the original design.
Each Pneumatic tube valve component part is inspected for dimensional accuracy, material integrity, and functional performance. We back our product with a comprehensive warranty against defects.
We maintain a large stock of Pneumatic tube valve components and individual parts, allowing same‑day dispatch. Bulk orders and customised kits are available for fleet operators.
Choosing our Pneumatic tube valve component reduces the risk of pneumatic system failures, saving you money on costly repairs and downtime. The durable construction ensures reliable performance and extended service intervals.
Aftermarket valves and seals may not withstand the pressure cycles, leading to premature failure. Our Pneumatic tube valve component is engineered to the exact OEM specifications, giving you peace of mind and consistent air flow.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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