The Wabco 8930300012 Thrust Ring is a critical component within air brake systems, designed to manage axial loads and prevent excessive movement between rotating and stationary parts. It is commonly used in heavy-duty trucks and trailers to ensure the reliable operation of the braking system. This OE specification thrust ring, measuring 5 x 4 x 10 mm, is engineered for precise fit and durability, contributing to enhanced braking performance and extended component life. Basically, this little piece takes all the force from your air brakes when you hit the pedal and turns it into rotational movement at the brake chamber. Think of it like a pivot point – it lets the brake shoes push outwards to stop the vehicle. It’s a circular component, usually made of steel, and it slides inside the brake chamber housing. It’s designed to handle a lot of pressure, converting linear force into the circular motion needed to activate your brakes. It’s part of the whole air brake system, obviously, specifically inside the brake chamber. When you apply the brakes, compressed air pushes on this ring. This causes it to move and push on the slack adjuster, which in turn pushes the brake shoes against the drums. It's a critical link in getting your brakes to actually work. If this thing fails, you're going to have trouble stopping. It’s not something you want to mess around with. It acts like a shield, taking all that braking force. If it’s worn, cracked, or damaged, it won’t transfer that force properly. You’ll notice if it’s bad – probably a soft or spongy brake pedal, longer stopping distances, or even the brakes dragging. It’s a relatively inexpensive part to replace, but it's a big safety item. You can find them pretty easily, we often stock them here, and a good place to check online is Fixparts Online, they have a good selection of air brake components. Don't wait until something serious happens to deal with it. Next-gen performance: Thrust Ring (MPN 8930300012) is backed by 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, saving you money on repairs in the long run. • We have a huge selection of parts, so you’re likely to find exactly what you need for your vehicle. • Our parts meet or exceed industry standards, giving you peace of mind on the road. • Wabco has been a trusted name in auto parts for decades, with a reputation for quality and reliability. FixParts Online – Your Trusted Source for Quality Wabco Auto Parts.