Wabco 4721709202 Repair Kit

Description

The Wabco 4721709202 is a comprehensive repair kit designed for air brake systems, specifically air valves. This kit is used to restore the functionality of critical braking components, ensuring safe and reliable operation of commercial vehicles and trailers. This repair kit meets OE specifications, providing a direct replacement for original equipment and guaranteeing a precise fit and consistent performance. Its dimensions are 17 x 113 x 183 mm.

Key Features & Benefits

This kit basically gives you all the seals, O – rings, and sometimes small springs and clips needed to rebuild the air control valve itself. The valve controls the flow of compressed air to the brake chambers, telling your brakes when to apply and release. It handles things like service brakes—when you push the pedal—and the spring brakes, which are automatically applied if you lose air pressure. A kit doesn’t give you a whole new valve, just the parts to refresh the one you’ve got. Think of the air control valve as the brain of your air brake system. It receives signals from the brake pedal and the driver’s controls, and then directs the air to the brakes themselves. It's a critical component, especially on larger vehicles like trucks, buses, and trailers. Without a properly functioning valve, your brakes won't work reliably—or at all.

Symptoms, Risks & Replacements

Air brakes are serious business, and leaks in that system can be really dangerous. Over time, the seals and O – rings inside the air control valve get brittle, crack, and start letting air escape. That loss of air pressure affects your stopping power and can even lead to the spring brakes engaging unexpectedly. Replacing these worn parts with a repair kit restores the valve to full working order. You’ll notice if your brakes are taking longer to engage, or if you’re constantly having to refill your air system—those are usually signs the valve needs attention. You can often find these kits at places like Fixparts Online, and they're a lot more economical than replacing the entire valve assembly. It's just preventative maintenance, really, and keeping your brakes working correctly is the most important thing.

Warranty Information

Wabco Repair Kit (MPN 4721709202) comes with a 1-year warranty.