Wabco 4735010040 Quick Exhaust Valve

Description

The Wabco 4735010040 Quick Exhaust Valve is a critical component in air brake systems, designed to quickly release air pressure from the brake chambers. This valve is commonly used in heavy-duty vehicles and trailers to improve braking responsiveness and reduce stopping distances. It features a calculated volume of 0.34017, dimensions of 58 x 85 x 69 mm, and mounting using 2x Ø 9.5 mm bolts with a bolt distance of 38 mm. The valve’s ports are threaded M22 x 1.5 and it’s designed to operate at a maximum pressure of 10.0 bar. This quick exhaust valve offers improved braking performance and reliability through its OE specification and rapid air release capabilities.

Key Features & Benefits

This valve basically lets air out of the brake system really fast when you release the brake pedal. It doesn’t apply the brakes, it just releases the pressure once you’re done braking. It’s a simple little component, but it does one job very quickly. Inside, it’s got a spring – loaded plunger and a port. When you hit the brakes, that port is closed. When you let off, the spring pushes the plunger away, opening the port and letting air escape. It’s part of your air brake system, naturally. Specifically, it’s often found near the brake chamber on each wheel. Air brakes work by building up pressure to apply the brakes, and then releasing that pressure. The quick exhaust valve is the key to how quickly that pressure gets released. It's there to make sure the brakes disengage promptly when you take your foot off the pedal. Without it, that air would have a much longer, slower path to escape.

Symptoms, Risks & Replacements

The main thing is responsiveness. You’ll notice if this thing starts to fail because your brakes won’t release as quickly as they should. It might feel like you’re still slightly dragging the brakes even after you've let off the pedal. That drag can overheat things, wear out brake components faster, and most importantly, affect stopping power. Think of it like a shield for the rest of your air brake system - it protects everything else by quickly releasing pressure. It keeps things working smoothly and safely. You can find these pretty easily, and Fixparts Online often has a good selection if you're looking to replace it. It's not a super expensive part, but definitely important for safety.

Warranty Information

Wabco Quick Exhaust Valve (MPN 4735010040) comes with a 1-year warranty.