The Wabco PRO6433280 Pressure Limiting Valve is a critical component in air brake systems, designed to protect against overpressure. It's primarily used in heavy-duty vehicles and trailers to regulate air pressure and ensure safe and reliable braking performance. This valve maintains system integrity by limiting pressure to a safe operating level. It features M22 x1.5 VOSS ports and operates with a supply pressure of 10 bar, a delivery pressure of 2.5+0.3/0 bar, and a maximum operating pressure of 20.0 bar. Its dimensions are 185 x 64 x 105 mm and 160 x 85 x 52 mm. The valve adheres to AM specifications, ensuring consistent and reliable operation. This valve basically controls the maximum air pressure that goes into your brake system. It takes the higher pressure from your air compressor and reduces it to a safe level for the rest of your components – things like your air bags, actuators, and brake chambers. It’s a pretty simple idea, but really important for keeping everything working correctly. It doesn't make pressure, it just manages it, stepping it down to what the system needs. Think of it as a gatekeeper for your air brake system. It sits between the air compressor and the rest of the braking components. It ensures no single part is over – pressurized. It’s commonly found on trucks and trailers, anything that relies on air brakes to stop safely. Different vehicles might have it located in slightly different spots, usually somewhere along the air lines near the compressor or the first major components. Well, if this valve fails, you could have too much pressure going to parts that aren’t designed for it. That’s a recipe for blown seals, damaged actuators, or even complete brake failure. It acts like a shield, protecting the more sensitive parts of your air system. You’ll notice if it's failing – things like brakes dragging, unusually long stopping distances, or the air compressor running constantly. It's a relatively inexpensive part considering what it protects, and it's one of those things it's best to replace proactively if you suspect trouble. Fixparts Online has a good selection of these if you're looking for a replacement, and they often have diagrams that help you find the correct one for your vehicle. Affordable and reliable: Pressure Limiting Valve (MPN PRO6433280) has a 12-month warranty!

About Wabco

WABCO specializes in air braking systems, EBS, ABS, ADAS, and trailer control systems.

Why Choose Wabco?

• Wabco parts are known for lasting a long time, so you won't have to replace them as often. • We have a huge selection of parts, covering many different makes and models of vehicles. • Our parts are made to meet or beat the quality of original equipment, without the high price tag. • Wabco has been a trusted name in auto parts for years, with a reputation for reliability and performance. Wabco delivers excellence, FixParts Online delivers to your door.