Wabco 9617230540 Parking Brake Valve

Description

The Wabco 9617230540 is a Hand Brake Valve, also known as a Parking Brake Valve, used within air brake systems to apply and release the parking brake, and provide additional braking functionality. It is commonly found in commercial vehicles and trailers. This valve ensures reliable parking and emergency braking performance, meeting OE specifications for durability and consistent operation. It features an actuation angle of 53°, a calculated volume of 1.8404, and a distance between mounting holes of 80 mm. Its ports are threaded M16 x 1.5 JED - 464. The valve's dimensions are 78 x 121 x 195 mm, and it is designed to operate within a temperature range of -40°C to +80°C with a maximum operating pressure of 10.0 bar. This device utilizes a flap exhaust configuration and mounts via 2x M6 connections.

Key Features & Benefits

This valve basically controls the air pressure that applies the spring brakes – those big brakes on the rear axles of trucks and trailers. It doesn't activate your regular service brakes, it handles the emergency and parking brakes. It takes air pressure away from those spring brake chambers, letting the springs apply the brakes, and then sends air back in to release them. It's a pretty simple idea, but it needs to work flawlessly. It has a few different functions depending on how it's set up – some are manual, you pull a lever or push a button, others are automatic, activating when the air system pressure drops. Think of it as the gatekeeper for your emergency stopping power. It's part of the air brake system, obviously, but specifically it's responsible for holding the vehicle stationary when parked and providing a secondary braking system if you lose air pressure while driving. It’s crucial for safety, particularly with heavier vehicles where the regular brakes might struggle on a long descent. It works with the air compressor and all the air lines, but it's the component that actually makes those spring brakes grab.

Symptoms, Risks & Replacements

You’ll notice if this thing goes bad, trust me. Usually it'll start with the parking brake not holding properly – the vehicle might roll even with the brake engaged. Or, more seriously, the brakes could partially apply or release unexpectedly while you’re driving if it fails internally. That's obviously a really dangerous situation. It’s a safety item, plain and simple. You don't want to mess around with brakes. We see a lot of these come through, and a faulty valve can cause a whole cascade of issues. Fixparts Online carries a good range of them, and getting the right one installed quickly is the best way to avoid a bigger, more expensive problem.

Warranty Information

Wabco Parking Brake Valve (MPN 9617230540) comes with a 1-year warranty.