Wabco 8977539304 Boot

Description

This Boot is a critical component within air brake systems, specifically designed for use with air valves. Manufactured by Wabco with MPN 8977539304, this part ensures the reliable sealing and operation of the air valve assembly. Its dimensions are 154 x 106 x 103 mm. This boot is an OE specification component, guaranteeing a precise fit and performance that meets original equipment standards, contributing to enhanced system durability and operational efficiency.

Key Features & Benefits

This little rubber piece, the boot, basically seals up the air control valve. It keeps moisture, dirt, and debris from getting into the valve itself. It flexes and moves with the valve’s operation, but always maintains that seal. It’s a pretty simple component, but crucial for everything working correctly. Think of your air brake system as the heart of stopping power for a lot of bigger vehicles – trucks, buses, trailers. The air control valve is a key part of that system, directing air where it needs to go to apply the brakes. The boot sits right on that valve, protecting it from the elements. It’s a small piece in a large system, but a necessary one.

Symptoms, Risks & Replacements

If this boot cracks, tears, or just gets really worn out, you’ll notice if it’s bad because you'll start getting air leaks. Even a small leak can cause problems with brake performance, potentially leading to longer stopping distances or uneven braking. It acts like a shield for that valve, and when the shield fails, the valve gets exposed to stuff it shouldn’t. They’re inexpensive to replace, and doing it proactively is way cheaper than dealing with bigger brake system issues down the road. You can find these easily enough online, places like Fixparts Online carry them, and it’s a straightforward replacement job for anyone comfortable with basic brake work.

Warranty Information

Wabco Boot (MPN 8977539304) comes with a 1-year warranty.