Wabco 4801040030 EBS Axle Modulator 2-Channel Gen2

Description

The Wabco Ebs Axle Modulator 2-Channel - Gen2 (MPN: 4801040030) is a critical component within a truck or trailer's air brake system, specifically designed for drive axles without redundancy (2S 2M). This air processing unit regulates air pressure to the axle, ensuring optimal braking performance and stability. It features M22 x 1.5 JED - 388-4 port threads and an integrated silencer, along with electrical connections using Bayonet DIN 72585 1A-4.1-Sn/K2. Measuring 157 x 134 x 222 mm, this modulator is engineered to meet OE specifications, providing a robust and reliable solution for commercial vehicle braking systems. Its IP 6K6K / IP 6K9K protection class and operating temperature range of -40°C to +80°C contribute to its durability and performance in demanding conditions.

Key Features & Benefits

This thing basically controls the air pressure to each axle's brakes independently. It takes the signal from your ABS system and uses it to rapidly apply or release air to the brake chambers at each wheel. That allows for precise control, especially during hard braking or when one wheel starts to lock up. This version is a 2 – channel, meaning it handles the front and rear axles as separate braking systems, giving you finer control than an older single – channel unit. It's all about regulating the airflow. Think of it as the brains behind your anti – lock braking system when it comes to actually doing the braking. Your ABS computer detects wheel speed, and this modulator is what translates that information into action at the wheels. It’s part of the air processing unit, sitting between the air compressor and the brake chambers. It receives signals, manages airflow, and delivers precisely metered air pressure. It’s a key part of making sure your trailer – or truck – stops safely and predictably.

Symptoms, Risks & Replacements

Well, without this working correctly, your ABS system can’t do its job. That means you lose the ability to prevent wheel lockup, and that dramatically increases your stopping distance, especially in slippery conditions. You'll notice if this fails, usually through an ABS warning light, and potentially by feeling the brakes lock up. It really is a critical safety component. We carry these at Fixparts Online, and a lot of our customers swap these out when they’re diagnosing ABS problems. Getting a good one is really important – it’s not something to cheap out on.

Warranty Information

Wabco EBS Axle Modulator 2-Channel Gen2 (MPN 4801040030) comes with a 1-year warranty.