Wabco 9617231380 Parking Brake Valve

Description

The Wabco 9617231380 is a Hand Brake Valve, also known as a Parking Brake Valve, designed for use in air brake systems. This valve controls the application and release of the parking brake, ensuring vehicle immobilization when parked or during maintenance. It features a 73° actuation angle, operates at a maximum pressure of 10.0 bar, and is equipped with M16 x 1.5 JED - 464 port threads. Its robust construction and OE specification guarantee reliable performance and compatibility. The valve measures 66 x 126 x 179 mm and features a 6 mm hose nozzle exhaust, with mounting achieved via 2x M6 connections. The operating temperature range is -40°C to +80°C.

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 9617231380) comes with a 1-year warranty.