

| No. | Part No. | Name |
|---|---|---|
| 1 | WG9000270002 | Dual‑Tone Air Horn Without Bracket |
| 2 | 712W51715-0038 | Air Horn Bracket Assembly |
| 3 | ZQ1840620 | Hexagon Flange Bolt M6 |
| 4 | ZQ32006 | Hexagon Flange Nut M6 |
| 5 | WG9718710003 | Air Horn Solenoid Valve |
| 6 | WG9000361001 | Elastic Element NG6 |
| 7 | WG9000361002 | Circlip NG6 |
| 8 | WG9000361003 | Nut Base NG6 |
| 9 | WG9000361207 | Right‑angle Connector Body NG6/NW4 |
| 10 | WG9725270023 | L‑shaped Bracket |
| 11 | WG9725270022 | Dual‑Tone Air Horn Clamp |
| 12 | WG9000361107 | Straight Connector Body NG6/NW4 |
| 13 | 190003179782 | Polyamide Tube (Φ6*1) |
| 14 | ZQ1840616 | Hexagon Flange Bolt M6 |
The Dual‑Tone Air Horn is a high‑power acoustic warning device that produces two distinct tones simultaneously, creating a penetrating and unmistakable sound that ensures the truck is heard in noisy traffic conditions. Its robust construction is designed for harsh environments.
The Air Horn Bracket Assembly is a sturdy steel mounting frame that secures the horn to the vehicle chassis. It is designed to absorb vibration and maintain the horn’s alignment, ensuring consistent performance in the Dual-Tone Air Horn Air Control Unit.
The Hexagon Flange Bolt M6 is a high‑strength fastener used to attach the bracket, solenoid valve, and other components. Its integrated flange eliminates the need for a separate washer and provides a wide clamping surface, ensuring secure mounting in the Dual-Tone Air Horn Air Control Unit.
The Hexagon Flange Nut M6 is the matching nut for the M6 bolts, providing a reliable and vibration‑resistant fastening solution. Its flanged design distributes load evenly, protecting the surfaces of the Dual-Tone Air Horn Air Control Unit components.
The Air Horn Solenoid Valve is an electropneumatic actuator that controls the flow of compressed air to the horn. It is activated by a switch in the cab, providing instant horn operation. This valve is a critical component of the Dual-Tone Air Horn Air Control Unit, ensuring rapid response and reliable function.
The Elastic Element NG6 is a rubber damping component that isolates vibration from the horn and valve, reducing noise transmission to the chassis and extending the life of the Dual-Tone Air Horn Air Control Unit.
The Circlip NG6 is a snap‑ring that retains the elastic element and other internal parts in position, ensuring that all components of the Dual-Tone Air Horn Air Control Unit remain securely assembled under pressure.
The Nut Base NG6 is a threaded insert that provides a durable and leak‑free mounting point for fittings in the NG6 size, forming a crucial part of the pneumatic connections in the Dual-Tone Air Horn Air Control Unit.
The Right‑angle Connector Body NG6/NW4 is a 90‑degree fitting that allows the air line to turn a corner, enabling compact routing of the pneumatic circuit within the Dual-Tone Air Horn Air Control Unit.
The L‑shaped Bracket provides additional support and positioning for the solenoid valve or other components, ensuring correct alignment and stability in the Dual-Tone Air Horn Air Control Unit.
The Dual‑Tone Air Horn Clamp securely fastens the horn to the bracket, preventing movement that could affect sound quality. It is designed for easy installation and adjustment within the Dual-Tone Air Horn Air Control Unit.
The Straight Connector Body NG6/NW4 provides a direct inline connection between two pneumatic lines, offering a simple and reliable joint in the Dual-Tone Air Horn Air Control Unit.
The Polyamide Tube (Φ6*1) is a flexible, pressure‑resistant nylon tube that carries compressed air from the source to the solenoid valve. It is lightweight, durable, and resistant to oil and chemicals, making it ideal for the Dual-Tone Air Horn Air Control Unit.
Every component in our Dual-Tone Air Horn Air Control Unit is manufactured to Sinotruk’s original specifications, guaranteeing a perfect fit and reliable performance. The horn, valve, brackets, and fittings are designed to work together seamlessly.
The dual‑tone horn produces a loud, penetrating sound that is essential for safety in busy traffic. The solenoid valve ensures instantaneous activation, giving drivers immediate control over the warning signal.
We supply the horn, bracket, solenoid valve, all fasteners, elastic elements, circlips, nut bases, connector bodies, tubing, and clamps. This Dual-Tone Air Horn Air Control Unit kit provides everything needed for a full installation, saving time and ensuring a professional result.
All metal parts are corrosion‑resistant, and the polyamide tubing is UV‑stabilised. The solenoid valve is sealed against moisture and dust, ensuring the Dual-Tone Air Horn Air Control Unit remains reliable in all weather conditions.
The Dual-Tone Air Horn Air Control Unit is an essential safety device for the Sitrak C7H, providing a loud, distinctive warning sound that alerts pedestrians and other road users to the truck’s presence. It is particularly valuable in urban environments and at construction sites.
The horn itself is designed to produce two harmonically related tones that combine to create a more penetrating sound than a single‑tone horn. This ensures that the warning is heard even above the ambient noise of heavy traffic.
The solenoid valve is a key component that converts an electrical signal from the steering wheel horn button into a pneumatic signal, allowing the horn to sound immediately. Its fast response time and high flow capacity are essential for effective operation.
The mounting bracket and clamp provide a stable platform for the horn, isolating it from chassis vibration and ensuring that the sound is directed forward. The L‑shaped bracket allows for flexible positioning, accommodating different chassis layouts.
The elastic elements and circlips work together to dampen vibration and prevent metal‑to‑metal wear, extending the life of the Dual-Tone Air Horn Air Control Unit. The nut bases provide secure, leak‑free connections for the pneumatic fittings.
The polyamide tube is lightweight and flexible, making it easy to route from the main air supply to the solenoid valve. Its resistance to oil and chemicals ensures that it remains durable in the engine bay environment.
Replacing a worn or damaged air horn system with our genuine Dual-Tone Air Horn Air Control Unit restores the full loudness and clarity of the warning signal, improving safety and compliance with noise regulations.
Installation is straightforward: mount the bracket to the chassis, attach the horn, install the solenoid valve, connect the air lines and electrical wiring, and secure the tubing with the provided clamps. The included fasteners and fittings make the job quick and easy.
For fleet operators, standardising on this Dual-Tone Air Horn Air Control Unit ensures consistent horn performance across all trucks, simplifying maintenance and reducing the risk of failures due to mismatched components.
All components are tested to withstand the high pressures and temperatures encountered in heavy‑duty truck operation. The solenoid valve is rated for millions of cycles, ensuring long‑term reliability.
We recommend periodic inspection of the air horn system to check for leaks, corrosion, or loose fittings. Replacing worn parts with our genuine components ensures that the Dual-Tone Air Horn Air Control Unit remains fully functional.
We back our Dual-Tone Air Horn Air Control Unit with a 12‑month warranty. Our technical support team is available to assist with installation and troubleshooting.
We ship worldwide with tracking. Expedited shipping is available. Use the Send Email or Get Quotation buttons to request a customised quote for your fleet.
Choosing a genuine Dual-Tone Air Horn Air Control Unit ensures that your C7H maintains its original safety and compliance standards. Aftermarket horns may not achieve the required sound level or durability.
The polyamide tube is compatible with standard pneumatic fittings, making it easy to integrate with the existing air system. The included connectors are push‑to‑connect for quick assembly.
The clamp is designed to hold the horn securely without causing damage, and its rubber lining prevents metal‑to‑metal contact, reducing noise and wear.
We maintain a large stock to ensure fast dispatch, even for bulk orders. Contact our sales team for volume pricing and customised logistics solutions.
Thank you for considering our Dual-Tone Air Horn Air Control Unit for your Sitrak C7H. We are confident that our genuine OEM product will deliver the reliability and performance you expect from Sinotruk.
The Dual-Tone Air Horn Air Control Unit is an essential safety feature that can be the difference between being noticed and being overlooked. Investing in a genuine system ensures that your truck commands attention when it matters most.
We provide a comprehensive installation guide with clear illustrations and torque specifications. The kit is designed for easy replacement, with all components clearly labelled.
We are committed to helping you maintain your C7H in peak condition. Our technical helpline is staffed by engineers with deep knowledge of the pneumatic systems.
With proper installation and regular inspection, this Dual-Tone Air Horn Air Control Unit will provide years of dependable service, keeping your horn ready to alert when needed.
Upgrade your C7H with the genuine Dual-Tone Air Horn Air Control Unit – the smart choice for safety, reliability, and long‑term value.
We are proud to be a trusted supplier of OEM Sinotruk parts. Contact us today to order your Dual-Tone Air Horn Air Control Unit and experience the quality that only genuine components can deliver.
Don’t wait until a failed horn compromises your safety. Replace your aging system with our genuine kit and enjoy the peace of mind that comes with a fully tested, factory‑fresh solution.
We are here to support your fleet’s needs with fast shipping and competitive pricing. Use the buttons above to request a quote or place your order.
The Dual-Tone Air Horn Air Control Unit is an essential part of your truck’s safety equipment. Choose genuine Sinotruk parts for the best results.
We are confident that our genuine Dual-Tone Air Horn Air Control Unit will exceed your expectations. Order today and keep your C7H safe and audible.
We are proud to offer this comprehensive kit, which includes every component needed for a complete overhaul of your air horn system. It is the most complete solution available for the Sitrak C7H.
Our Dual-Tone Air Horn Air Control Unit is built to meet the highest standards of quality and durability. You can trust it to perform when you need it most.
We look forward to serving your Sitrak C7H needs. Thank you for choosing our genuine parts for your vehicle.
We are committed to providing the best service and quality. Trust our Dual-Tone Air Horn Air Control Unit to deliver the performance you expect.
Order now and ensure your truck is equipped with the best air horn system available. We are here to support you every step of the way.
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.