Wabco 8930300804 Thrust Washer

Description

This Thrust Washer, manufactured by Wabco under MPN 8930300804, is a critical component within air brake systems. It's designed to reduce friction and wear between rotating or sliding parts, ensuring smooth operation and extending the lifespan of the connected components. This part is used within the fittings of air brake systems, primarily to maintain proper clamping force and prevent leaks. The technical specification adheres to OE standards, ensuring a reliable and consistent fit and performance. It measures 3 x 18 x 18 mm, providing a compact yet durable solution for demanding braking applications.

Key Features & Benefits

Basically, it's a small, often flat, piece of metal – sometimes steel, sometimes another durable material. It’s designed to reduce friction and wear between moving parts. Think of it like a buffer, or a really smooth pad. It handles forces pushing along the surface, not directly into it. It distributes that pressure evenly. Sometimes they’ll have a coating to help with that even more. In your air brake system – specifically with the fittings – it sits between components. When things move and tighten or loosen with pressure changes or normal operation, the thrust washer takes the brunt of that sideways force. It prevents metal – on – metal contact, and keeps everything sliding smoothly. It's usually found in areas where parts rotate or slide against each other, like around a brake chamber rod or where an air line connects.

Symptoms, Risks & Replacements

Well, without it, you’d get a lot of wear and tear on those fittings. They’d start to bind up, get corroded faster, and eventually, you could have leaks or even a failure. It acts like a shield, protecting the more expensive parts from damage. You’ll notice if one goes bad usually because things will start to feel sticky or slow when the brakes operate, or you might hear some squeaking or grinding. They’re small parts, but surprisingly important for keeping your air brake system working correctly and safely. You can find them pretty easily online – Fixparts Online has a good selection, if you’re looking for a source. Replacing them when you do other brake work is a smart preventative measure.

Warranty Information

Wabco Thrust Washer (MPN 8930300804) comes with a 1-year warranty.