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The WG9700240003 6/4 Quick-Connect Reducer is a precision-engineered pneumatic fitting that seamlessly adapts between 6 mm and 4 mm air line sizes in the chassis and brake systems of SINOTRUK Howo heavy-duty trucks. As a premier supplier of genuine Sinotruk howo parts, we offer this reducer as a direct OEM replacement, manufactured to the original equipment’s stringent standards. The fitting features a durable nickel-plated brass body with a push-to-connect locking mechanism, providing reliable, leak-free connections, rapid installation, and exceptional resistance to vibration, temperature extremes, and corrosion, ensuring dependable performance across the entire pneumatic circuit of your truck.
This quick-connect reducer (OEM WG9700240003) is essential for properly adapting air line sizes, maintaining optimal airflow and pressure to brake chambers, suspension components, and auxiliary equipment. Its compact design and secure collet grip prevent accidental disconnection, even under high vibration. The WG9700240003 is built to endure the rigors of long-haul transport, off-road operations, and severe environmental exposure, delivering dependable service over thousands of miles.
OEM direct replacement • Nickel-plated brass • Push-to-connect design • Leak-proof sealing
The WG9700240003 6/4 Quick-Connect Reducer is a high-quality pneumatic fitting used to transition between 6 mm and 4 mm OD polyamide or nylon air lines in the air brake and suspension systems of SINOTRUK Howo trucks. Engineered as a direct OEM replacement, this reducer guarantees correct sealing, secure locking, and consistent airflow. Manufactured to the original equipment specifications, it ensures a perfect fit and reliable performance.
The fitting is machined from high-grade brass and finished with a durable nickel-plating that resists corrosion, oxidation, and wear. The push-to-connect mechanism uses a stainless steel grab ring and an O-ring seal that provides a tight, leak-proof connection without the need for tools. The design allows for fast tube insertion and release, reducing assembly time and simplifying maintenance. The reducer’s body is compact, making it suitable for tight spaces in the chassis.
This quick-connect reducer is essential for maintaining proper air line transitions, ensuring that pneumatic components receive the correct pressure and flow. Its robust construction and precise engineering guarantee reliable performance over extended service intervals, meeting the rigorous demands of heavy-duty trucking. It is the direct replacement you can trust to keep your SINOTRUK Howo’s air system operating efficiently.
The WG9700240003 6/4 Quick-Connect Reducer is specifically designed for SINOTRUK Howo heavy-duty trucks, including Howo A7, T7H, T5G, and other models that use 6 mm and 4 mm polyamide tubing in their pneumatic systems. It is compatible with standard nylon or PA12 air lines and is ideal for connecting brake actuators, leveling valves, and other pneumatic devices.
This reducer is suitable for a wide range of applications, including long-haul trucking, regional distribution, construction, mining, and agricultural operations. The robust construction and leak-proof sealing ensure reliable pneumatic performance even under sustained heavy loads and extreme ambient conditions.
When replacing, always verify the tube outer diameters to ensure a perfect match. The WG9700240003 is a direct-fit component that simplifies maintenance and restores original air line integrity.
Installing the WG9700240003 Quick-Connect Reducer is simple and requires no special tools. Start by cutting the air tubes square and cleanly using a tube cutter. Ensure the tube ends are free of burrs and dirt. Push the 6 mm tube firmly into the larger end of the reducer until it bottoms out; the grab ring will secure it. Similarly, insert the 4 mm tube into the smaller end. The connection is complete when the tube cannot be pulled out by hand.
To disconnect, simply push the collet (release ring) towards the body while pulling the tube. This releases the grab ring and allows the tube to be removed. No special tools are required. After installation, pressurize the system and check for leaks using soapy water. If a leak is detected, ensure the tube is fully inserted and the O-ring is not damaged.
Regular maintenance includes periodically inspecting the reducer for signs of corrosion, cracks, or tube damage. Replace the fitting if the O-ring becomes hardened or the grab ring loses its tension. Keep the area around the fitting clean to prevent dirt ingress.
This reducer is engineered for long-term durability, but proper installation and routine checks will ensure continued air system reliability.
This quick-connect reducer is manufactured in an ISO 9001-certified facility using premium brass and stainless steel materials. The brass is sourced from certified suppliers and tested for chemical composition. The nickel-plating process is carefully controlled to ensure uniform thickness and adhesion. The O-rings are made from high-quality NBR and tested for hardness and compression set.
Every fitting undergoes 100% dimensional inspection and leak testing at 1.5× the maximum working pressure. Pull-out force is verified to ensure the grab ring securely holds the tube. Random samples are subjected to thermal cycling, vibration, and salt spray testing to validate long-term durability. The fittings are designed to meet or exceed OEM performance requirements.
Our commitment to quality ensures a reducer that delivers leak-free, dependable connections, maintaining the integrity of your pneumatic system. Backed by a comprehensive warranty, this fitting offers peace of mind for fleet operators and owner-operators.
Choose genuine quality for your air system – choose the WG9700240003 OEM quick-connect reducer.
The WG9700240003 6/4 Quick-Connect Reducer is a small but essential component that ensures reliable air line connections, maintaining proper pressure and flow to critical pneumatic systems. Its robust brass construction, reliable sealing, and easy installation make it an indispensable part of your truck’s air network. It is the genuine solution you need.
By choosing this genuine OEM-quality reducer, you avoid the risks of air leaks, fitting corrosion, or tube blow-off that can occur with substandard aftermarket parts. It is engineered for long-lasting performance, reducing maintenance downtime and ensuring your brake and suspension systems operate safely. The WG9700240003 delivers the reliability you expect from a genuine SINOTRUK Howo component.
Fleet operators will benefit from improved pneumatic system uptime, reduced air loss, and fewer roadside repairs. Owner-operators will gain confidence in their vehicle’s ability to handle heavy loads and diverse terrain without air system issues. This reducer is the dependable choice for professionals who prioritize performance and safety.
Invest in this OEM fitting and experience the difference that genuine quality makes. Its proven reliability and engineering excellence make it the smart choice for anyone who demands the best from their SINOTRUK Howo. The WG9700240003 sets the standard for pneumatic adapters.
Order your WG9700240003 6/4 Quick-Connect Reducer today and ensure your air lines are perfectly adapted for miles of trouble-free operation.
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