🔧 Precision Brass Construction – Heavy-Duty Air Brake Component for Reliable Commercial Vehicle Performance
🔧 Solid Brass Construction – Corrosion-resistant brass body ensures long-lasting durability and reliable operation in demanding heavy-duty environments – built to handle extreme conditions and high-pressure air brake systems
⚙️ M18x1.5 Thread Standard – Precision-machined metric thread port for secure, leak-free installation – compatible with a wide range of semi-trailers and commercial vehicles featuring metric air brake fittings
🛡️ Critical Safety Component – Functions as a protective air brake valve designed to automatically cut off supply lines in the event of trailer-side leaks, helping to maintain critical air pressure for effective service braking
🔩 Exhaust Port Design – Integrated exhaust port enables proper air release during braking operation – supports efficient brake performance and system maintenance
🚛 For Semi Trailers & Heavy Duty Trucks – Essential replacement part for commercial vehicle pneumatic systems, including semi-trailers, tractors, and heavy-duty trucks requiring reliable air brake components
🔩 Professional-Grade Repair Part – Premium quality control valve meeting rigorous engineering standards – designed to enhance braking performance, safety, and system uptime
🇺🇸🇨🇦🇦🇺 Fast Shipping – Ships from US / CA / AU warehouses, get it in 3–6 days
Keep Your Air Brake System Running Safely and Efficiently with a Premium Brass Cut-Off Valve.
In commercial vehicle air brake systems, the integrity of every component is critical to safety. The cut-off or protection valve serves as a vital safeguard: if the trailer-side air circuit suffers a leak or rupture, this valve automatically closes the supply line. This prevents a catastrophic pressure drop in the tractor's reservoirs, ensuring you retain the braking power needed to stop safely in an emergency.
This solid brass valve is engineered for this demanding role. The robust brass body resists corrosion and wear, while the precision M18x1.5 thread ensures a secure, leak-free connection for metric air brake systems.
Built for Heavy-Duty Reliability
Designed for use with semi-trailers and heavy-duty trucks, this part is built to withstand the rigors of daily commercial use. Its construction reflects the high standards required for critical air brake components, helping to ensure system responsiveness and reliability under extreme conditions.
Simple and Secure Installation
Whether you are replacing a worn valve or performing preventative maintenance, this 1-piece valve is straightforward to install. Follow proper safety procedures for servicing air brake systems, including draining the air pressure and testing for leaks after installation.
Perfect For:
- Semi-trailer air brake system maintenance and repair
- Heavy-duty trucks and commercial vehicle fleets
- Replacing worn or leaking cut-off valves
- Professional mechanics and fleet maintenance teams
One valve. Critical safety. Reliable performance. 🔧
Specifications
| Attribute | Details |
|---|---|
| Material | Solid Brass – Corrosion-Resistant |
| Thread Type | M18 x 1.5 – Metric Fine |
| Function | Front Air Brake Cut-Off Valve |
| Application | Semi Trailers & Heavy Duty Vehicles |
| System | Pneumatic Air Brake Systems |
| Compatibility | Commercial vehicles with metric air brake fittings |
Social Proof
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"Great quality valve for my semi-trailer. The brass construction is solid and the M18 thread fit perfectly. Exactly what I needed for a critical brake system repair." – Verified Buyer
⭐⭐⭐⭐⭐
"Shipped fast and worked perfectly as a replacement part. Restored full air pressure control to my rig. Would recommend." – Verified Buyer
⭐⭐⭐⭐⭐
"Reliable and well-machined. A perfect match for my heavy-duty air brake setup. This is a quality component." – Verified Buyer
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