The Differential lock between the two axle operate device is a critical pneumatic control system that engages the inter-axle differential lock on the HOWO A7 8X4, providing maximum traction in slippery or off-road conditions. This comprehensive kit includes the Straight joint NG6NW41, Plug M10×13, Elastic component NG6 5, Clamp Spring NG6 7, Nut base NG6 9, and Polyamide tube（Φ6*1）11. When you choose genuine howo Parts for your differential lock between the two axle operate device replacement, you guarantee reliable lock engagement, leak-free pneumatic connections, and long-lasting durability in the most demanding driving conditions.
The Straight joint NG6NW41 is a precision-machined connector that links pneumatic lines within the differential lock actuation circuit. It ensures a secure, leak-proof interface between the control valve and the actuator.
This joint is manufactured from high-grade brass with a nickel-plated finish, offering excellent corrosion resistance and dimensional stability under high-pressure and high-temperature conditions.
The NG6NW41 designation indicates compatibility with standard 6mm polyamide tubing and a specific thread configuration, ensuring a perfect fit for the HOWO A7 8X4 chassis.
The Plug M10×13 is a threaded sealing cap used to close unused ports in the pneumatic manifold or actuator body. It prevents contamination and maintains system integrity.
This plug is made from steel with a zinc-plated coating, providing robust corrosion resistance. Its M10x1.0 thread ensures a tight, reliable seal even under fluctuating pressure.
Proper sealing of unused ports is essential for the differential lock between the two axle operate device to maintain consistent actuation response.
The Elastic component NG6 5 is a flexible damping element that absorbs shock and compensates for thermal expansion in the pneumatic line. It reduces stress on fittings and extends the service life of the system.
Manufactured from high-grade synthetic rubber, this component resists oil, ozone, and extreme temperatures, ensuring consistent performance in the engine compartment.
The elastic component is specifically rated for use with NG6 fittings, making it an ideal match for the straight joint and nut base.
The Clamp Spring NG6 7 is a spring-loaded retainer that securely holds the polyamide tube in place, preventing disconnection due to vibration. It is designed for quick, tool-free installation.
This clamp is made from stainless steel, offering excellent corrosion resistance and maintaining its clamping force over thousands of cycles.
The clamp ensures that the pneumatic line remains firmly connected to the joint and nut base, which is critical for reliable differential lock actuation.
The Nut base NG6 9 is a threaded mounting base that provides a secure attachment point for the joint and tube assembly. It anchors the pneumatic component to the support bracket or actuator body.
This nut base is manufactured from steel with a corrosion-resistant coating and features a self-locking mechanism to prevent loosening under vibration.
A properly installed nut base is essential for maintaining the alignment and integrity of the differential lock between the two axle operate device.
The Polyamide tube（Φ6*1）11 is a flexible, dimensionally stable pneumatic hose used to transmit actuation pressure from the control valve to the differential lock actuator. Its 6mm outer diameter and 1mm wall thickness provide an optimal balance of flexibility and burst strength.
This tube is made from PA12 polyamide, which offers excellent resistance to heat, oil, and abrasion. It is supplied in 5-meter lengths for versatile routing.
Proper installation of the polyamide tube is critical for the differential lock between the two axle operate device to respond quickly and maintain full locking force when engaged.
The tube’s smooth inner surface minimizes flow resistance, allowing fast pressurization and rapid lock engagement, which is vital for maintaining traction in challenging terrain.
Differential lock between the two axle operate device – Complete pneumatic control kit for HOWO A7 8X4
| Part NO. | Description |
|---|---|
| WG9000361107 | Straight joint NG6NW41 |
| WG9000361010 | Plug M10×13 |
| WG9000361001 | Elastic component NG6 5 |
| WG9000361002 | Clamp Spring NG6 7 |
| WG9000361003 | Nut base NG6 9 |
| 190003179782 | Polyamide tube（Φ6*1）11 |
Our differential lock between the two axle operate device components are manufactured from premium materials that withstand high temperatures, oil, and vibration. The polyamide tube and elastic elements provide flexibility while maintaining pressure integrity for consistent locking force.
The complete kit includes every fitting, tube, and clamp needed for installation, eliminating the need to source individual parts. This saves time and ensures compatibility, reducing the risk of leaks or improper assembly.
All components are designed to OEM specifications, ensuring a perfect fit on the HOWO A7 8X4. The straight joint and nut base are precisely sized to match the actuator ports, simplifying installation and alignment.
We back our differential lock between the two axle operate device with a comprehensive warranty and technical support. Choose genuine howo Parts for the confidence of reliable traction control, reduced wheel spin, and enhanced off-road capability.
The differential lock between the two axle operate device engages the inter-axle differential lock, which forces both drive axles to rotate at the same speed, providing maximum traction when one axle has poor grip. This is essential for off-road operation, muddy sites, and snowy roads.
The system is pneumatically actuated, using air pressure from the vehicle’s brake system. When the driver activates the dash switch, the control valve directs air through the polyamide tube to the actuator, which mechanically locks the differential.
The straight joint and nut base create a secure, leak-free connection between the tube and the actuator. The elastic component absorbs shock from engine and road vibrations, preventing fatigue failure of the tube at the connection points.
The clamp spring ensures that the tube remains firmly attached even under high pressure and vibration, which is critical for maintaining lock engagement during heavy pulling or climbing.
Begin by isolating the air supply and relieving system pressure. Mount the nut base to the actuator or support bracket using the appropriate hardware, ensuring it is securely torqued.
Screw the straight joint into the nut base, applying thread sealant to the male threads. Install the elastic component onto the joint to provide strain relief for the tube.
Cut the polyamide tube to the required length, ensuring a clean, square cut. Push the tube firmly into the joint until it bottoms out, then secure it with the clamp spring. Route the tube away from heat sources and sharp edges.
Connect the other end of the tube to the control valve using the same procedure. Use the plug to seal any unused ports on the manifold.
After installation, pressurize the system and check for leaks using a soapy water solution. Activate the differential lock from the cab and listen for the actuator engagement. Verify that the lock engages and disengages smoothly.
The differential lock between the two axle operate device components are designed for the HOWO A7 8X4 with the NG6 pneumatic interface. They are compatible with all axle configurations that use the standard inter-axle differential lock actuator.
The straight joint, plug, elastic component, clamp spring, and nut base are standard NG6 sizes and can be used with other pneumatic systems of the same specification. The polyamide tube is a common 6mm OD tubing, readily replaceable with equivalent material.
When sourcing replacements, ensure that the thread sizes (M10x1.0 for the plug) match your existing ports. Using incorrect fittings can compromise the seal and lead to air leaks.
A properly functioning differential lock between the two axle operate device ensures that your truck can maintain traction in the most challenging conditions, reducing the risk of getting stuck and improving overall safety.
The high-quality polyamide tube and elastic components resist degradation from underhood heat and oil, ensuring consistent response time. The clamp spring maintains secure tube retention, preventing accidental disconnection.
For fleet operators, standardizing on this kit simplifies inventory and ensures all trucks have the same reliable lock engagement. Regular inspection of the tube and fittings should be part of the preventive maintenance schedule.
We recommend replacing the polyamide tube every 5 years or if any signs of cracking or hardening are observed. Keep spare clamps and tubes in your service truck for quick repairs.
Our technical support team is available to assist with any installation questions or compatibility checks. We are committed to keeping your HOWO A7 8X4 safe and efficient with our differential lock between the two axle operate device solutions.
Order your differential lock between the two axle operate device kit today and experience the confidence that comes with genuine howo Parts. Your safety and productivity are our top priorities.
With over 20 years of experience in heavy-duty truck parts, we have the expertise to supply the highest quality components. Trust us for all your pneumatic and drivetrain control needs.
We offer competitive pricing and fast shipping to keep your fleet on the road. Contact us today for bulk order discounts and technical support.
Remember, a well-maintained differential lock system is essential for driver safety and vehicle performance in adverse conditions. Don’t compromise on quality – choose our Differential lock between the two axle operate device kit.
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.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
