The part is a comprehensive pneumatic control system engineered for the dual front axles of the HOWO A7 8X4 heavy truck. This HOWO doubel front axle brake device integrates relay valves, brackets, tubing, and sealing components to deliver balanced and responsive braking to both front axles, enhancing stability and stopping power. Designed for demanding applications, The part ensures consistent brake performance and durability.
At howo Parts, we supply the genuine HOWO doubel front axle brake device assembly that meets OEM standards. Our HOWO doubel front axle brake device includes the tube circuit schematic, relay valves, angle brackets, bolts, washers, nuts, brake hoses, polyamide tubes, elastic components, clamps, nut bases, plugs, straight and angled joints, T‑shaped fittings, ferrule joints, hex thin nuts, support washers, and O‑rings – all precision‑manufactured for leak‑free operation and reliable brake control.
Proper brake balance is critical for safety, and The part ensures equal air pressure distribution to both front axles. Regular inspection and timely replacement of HOWO doubel front axle brake device components will prevent brake imbalance, air leaks, and premature wear. Trust our HOWO doubel front axle brake device to keep your HOWO A7 8X4 stopping with confidence for millions of kilometres.
This schematic illustrates the pneumatic circuit for the front axle, showing the relay valve installation. It is a key reference for understanding the airflow paths in The part.
The standard relay valve amplifies the brake signal, providing rapid air delivery to the front brake chambers. It is a core component of The part, ensuring quick and consistent brake application.
This premium WABCO relay valve offers superior precision and durability, delivering exceptional brake response. It is a direct fit for The part, ensuring reliable performance in all conditions.
An L‑shaped mounting bracket that securely attaches the relay valve to the chassis, ensuring correct alignment and stability within The part.
General‑purpose bolts used to secure brackets and components in The part. Their zinc‑plated finish provides corrosion resistance and reliable clamping.
High‑strength hex bolts are used for critical fastening points in The part, ensuring secure attachment of valves and brackets.
Flat washers distribute load under bolt heads and nuts, protecting surfaces and ensuring even clamping pressure in The part.
Spring washers are split‑ring lock washers that prevent fastener loosening due to vibration, a critical feature for The part.
A type 1 hex nut, standard metric, used for general fastening in The part, providing reliable clamping force.
A flexible brake hose assembly with 670 mm length, connecting the chassis air lines to the front axle brake chambers. It is reinforced for high pressure and durability in The part.
Flexible nylon hose with 12 mm outer diameter and 1.5 mm wall thickness, used for main air lines in The part. It resists abrasion and chemicals.
A rubber vibration isolator for NG8 fittings, reducing stress on connections and extending the life of The part.
A spring retainer that secures the NG8 elastic component, ensuring it stays in place within The part.
A threaded base for mounting the NG8 elastic component, providing a stable anchor in The part.
A larger rubber isolator for NG12 fittings, providing vibration damping for the main air lines of The part.
A retaining spring for the NG12 elastic component, ensuring secure mounting in The part.
A threaded base for the larger elastic component, providing robust support in The part.
A sealing plug with M22×1.5 thread, used to close unused ports on the relay valve or manifold, preventing air leaks in The part.
A straight union for connecting NG12 and NW9 tubes, used for simple inline connections in The part.
A T‑shaped three‑way connector with N1W12, NG12, and NW9 ports, allowing branching of air lines in The part.
A 90‑degree elbow for NG12 to NW9 connections, used for compact routing in The part.
An L‑shaped three‑way fitting with NG12 and two NW9 ports, enabling branched connections in tight spaces of The part.
A ferrule‑style straight joint for L12 to NG12 connections, providing a metal‑seal for high‑pressure lines in The part.
A thin hex nut with M18×1.5 thread, used in confined spaces within The part.
A 90‑degree elbow for NG8 to NW6 connections, used for control line routing in The part.
A thin hex nut for M22×1.5 threads, used where space is limited in The part.
A support washer for M22 threads, providing additional load distribution in The part.
Elastomeric O‑rings (20.3×2.4 mm) used to seal threaded connections, preventing air leaks in The part.
| Part NO. | Description |
|---|---|
| AZ9725360095 | Tube circuit schematic(relay valve install in front shaft) |
| WG9000360524 | Relay valve |
| WG9000360524/1 | Relay valve(WABCO) |
| WG9731360805 | Angle bracket(relay valve) |
| Q150B1225 | Bolt |
| Q40112 | Flat washer |
| Q40312 | Spring washer |
| Q340B12 | I shape hex nut |
| WG9725360451 | Brake hose assembly(length670mm) |
| 190003179785 | Polyamide hose (Φ12*1.5) |
| WG9000361004 | Elastic component NG8 |
| WG9000361005 | Clamp spring NG8 |
| WG9000361006 | Nut base NG8 |
| WG9000361007 | Elastic component NG12 |
| WG9000361008 | Clamp spring NG12 |
| WG9000361009 | Nut base NG12 |
| WG9000361012 | PlugNG12-M22X1.5 |
| WG9000361101 | Straight joint NG12/NW9 |
| WG9000361320 | T shape three-way jointN1W12/NG12/NW9 |
| WG9000361204 | Right angle jointNG12/NW9 |
| WG9000361305 | L shape three way NG12/2-NW9 |
| WG9000361105 | Fernule straight joint L12/NG12 |
| WG9000361104 | Hexthn nut M18X1.5 |
| WG9000361201 | Right angle jointNG8/NW6 |
| WG9000361045 | Hexthn nut M22X1.5 |
| WG9000361016 | Support washer M22X1.5 |
| WG9000361017 | O rings 20.3X2.4 |
| WG9000360518 | relay valve |
| Q401010 | Hex bolt |
Our HOWO doubel front axle brake device ensures equal air pressure to both front axles, providing stable braking and reducing tyre wear. This enhances vehicle control and safety.
The part features WABCO relay valves, high‑grade polyamide hoses, and precision fittings, ensuring leak‑free operation and durability.
Our HOWO doubel front axle brake device comes as a comprehensive set with all brackets, fittings, hoses, and fasteners, simplifying replacement and reducing downtime.
We maintain a large stock of HOWO doubel front axle brake device parts for fast worldwide delivery. Our technical experts provide installation guidance and troubleshooting.
The part is essential for maintaining balanced braking on the front axles, preventing wheel lock‑up and ensuring stable steering during emergency stops. A malfunctioning device can cause pulling or uneven tyre wear. Regular inspection and using genuine HOWO doubel front axle brake device parts are crucial for safety and performance.
The part is built to withstand extreme temperatures, moisture, and road debris. The zinc‑plated fasteners, corrosion‑resistant fittings, and flexible polyamide hoses ensure long‑term reliability even in the toughest conditions.
When installing The part, use new O‑rings and spring washers. Torque all fasteners to the specified values. Ensure hoses are routed without sharp bends and secured with clamps to prevent chafing.
We recommend inspecting The part every 50,000 km. Check for air leaks, damaged hoses, and loose brackets. Replace any worn components immediately to maintain braking balance and safety.
Our HOWO doubel front axle brake device is specifically engineered for the HOWO A7 8X4 with dual front axles, matching the factory routing and mounting points for a direct replacement.
Each HOWO doubel front axle brake device component is pressure‑tested and inspected. We offer a comprehensive warranty against defects, giving you full confidence in your purchase.
We maintain a large stock of HOWO doubel front axle brake device kits and individual parts for immediate dispatch. Bulk orders are available with volume discounts.
Investing in a genuine HOWO doubel front axle brake device reduces maintenance frequency and prevents brake imbalance issues, lowering total cost of ownership.
Aftermarket brake devices often use inferior materials, leading to leaks and uneven braking. Our HOWO doubel front axle brake device is built to OEM standards, ensuring safety and reliability.
A well‑maintained HOWO doubel front axle brake device ensures consistent and balanced braking, improving vehicle control and reducing stopping distances. This translates to safer operation and reduced driver fatigue.
The part delivers consistent performance on highways, construction sites, and in adverse weather. Its robust construction and high‑quality seals ensure reliable braking under all conditions.
The relay valves in The part include anti‑compounding features to prevent simultaneous brake and throttle application, enhancing safety.
Our HOWO doubel front axle brake device uses push‑to‑connect fittings and precision‑machined threads for leak‑free joints. The polyamide hoses offer excellent flexibility and resistance to ageing.
The brackets and tube guides in The part allow for neat and accessible routing, simplifying maintenance and reducing service time.
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