This Sealing Ring is a critical component within air brake systems, specifically used in air valves to prevent leaks and maintain proper pressure. It ensures the reliable operation of the braking system in commercial vehicles. This Wabco part, with MPN 8970301004, is manufactured to OE specification, guaranteeing a precise fit and dependable performance. The dimensions of this sealing ring are 12 x 4 x 10 mm, contributing to its effective sealing capabilities and long service life. These little rings, they basically create an airtight seal wherever parts connect in your air brake valves. Think of them like gaskets, but specifically for air instead of fluids. They prevent air from leaking out where things join together. They come in different sizes and materials depending on where they go, but the job is always the same – keep the air where it’s supposed to be. In your air brake system, everything relies on having consistent air pressure. The sealing rings are key to maintaining that pressure. They’re found in various places within the air valves themselves – around valve stems, between valve bodies, things like that. They’re part of what allows the system to build and hold the air needed to engage your brakes. Without good seals, you start losing pressure, and that’s a serious safety issue. It’s important because air brakes need air. If these rings fail, you’ll start to lose air pressure, even when you aren’t actively braking. You’ll notice if you have a leak – the brakes might feel spongy, the air compressor will run more often to try and keep up, and you might even get a warning light on your dash. A bad sealing ring can lead to a complete brake failure, so it’s definitely something you want to address right away. You can find replacements pretty easily, Fixparts Online carries a good selection, and they’re usually a straightforward repair. They’re cheap to replace compared to what could happen if you ignore a leak. Built to endure: Sealing Ring (MPN 8970301004) comes with 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 built to last, meaning fewer repairs and more time on the road. • We offer a wide range of parts for many different vehicles – chances are we have what you need. • Our parts meet or exceed industry standards, giving you reliable performance you can trust. • Wabco has a long history of serving professionals and DIYers alike with quality auto parts and excellent customer support. FixParts Online – Your Trusted Source for Quality Wabco Auto Parts.