Wabco 4324070700 Muffler

Description

The Wabco 4324070700 Silencer, also known as a Muffler, is a vital component within Air Brake Systems, specifically used with Air Dryers. This device reduces noise generated by the air brake system, contributing to a quieter and safer operating environment. The silencer features snap-on mounting and ports for easy installation. Measuring 68 x 53 x 69 mm, this OE specification device is engineered for reliable performance across a temperature range of -40°C to +80°C and operates effectively up to 11.0 bar. It's designed to achieve 69 dB(A) at 10 bar and 7m, ensuring optimal noise reduction without compromising system efficiency.

Key Features & Benefits

This muffler’s job is to reduce noise from the air dryer as it's purging moisture and compressed air. Think of the air dryer as the heart of your air brake system; it cleans and regulates the air. As it does that, it releases a burst of air and water – and that can be pretty loud. The muffler basically silences that release. It doesn't affect the braking, it just keeps things quieter for you in the cab and anyone nearby. It’s a pretty simple part, honestly, just a baffled chamber for the air to pass through. It fits right onto the outlet of the air dryer. The dryer cleans the air, then sends it through this muffler before it goes to the air tanks that actually operate the brakes. So it’s an integral part of the system, even if it doesn’t directly make the brakes work. It’s kind of like a protective layer, acting as a shield against noise pollution.

Symptoms, Risks & Replacements

It’s important for a couple of reasons. First, constant loud bursts of air are irritating, especially on long hauls. Second, some regulations actually have noise level requirements for commercial vehicles. If that muffler fails, you’ll notice if things get significantly louder when the air dryer cycles – that “whoosh” sound will be much more prominent. You can find replacements pretty easily, places like Fixparts Online carry a good selection. It’s a relatively inexpensive part to replace, and keeping it in good working order just makes driving a lot more pleasant and helps you stay compliant.

Warranty Information

Wabco Muffler (MPN 4324070700) comes with a 1-year warranty.