Wabco 4801065120 EBS Axle Modulator 1-Channel Gen4

Description

The Wabco EBS Axle Modulator 1-Channel - Gen4 (MPN: 4801065120) is a critical component in air brake systems, specifically designed for commercial vehicles. It modulates the braking force to individual axles, enhancing vehicle stability and control during braking maneuvers. This device is used within the air processing unit of the braking system. This modulator operates with a 24V system, handles up to 3500mA of current, and is rated for operation between -40°C and +80°C with a maximum operating pressure of 13.0 bar. It features M22 x 1.5 JED - 388-4 port threads and integrated silencers, along with M16 x 1.5 and M12 x 1.5 mounting options. Its dimensions are 181 x 128 x 125 mm and it is built to OE specification with IP 6K6K / IP 6K9K protection.

Key Features & Benefits

This thing basically controls the air pressure going to the brakes on one axle. It takes the signal from your EBS (Electronic Braking System) computer and translates that into controlling an air relay valve. That valve then governs how much air pressure is sent to the wheel cylinders or air motors on that axle, applying the brakes. It’s a pretty precise piece of equipment. It handles things like automatic slack adjuster compensation, which keeps your brakes properly adjusted, and it helps prevent wheel lockup, especially during hard braking or on slippery surfaces. Think of it as the “muscle” behind your EBS system for one axle. The EBS computer is the brain, sending the instructions, and this modulator is what actually does the braking. It's part of the air processing unit, working with things like your air dryer and governor to maintain a consistent and reliable air supply to the brakes. It’s typically found on tractors, trailers, and really any vehicle with air brakes and an EBS system.

Symptoms, Risks & Replacements

It’s super important for safety, plain and simple. If this modulator fails, you could lose braking power on an entire axle. You’ll notice if it’s going bad because you might experience pulling to one side during braking, or longer stopping distances. It also acts like a shield, protecting the rest of your air brake system from damage caused by sudden pressure changes. It's one of those things you really don’t want to ignore. If you're rebuilding or repairing an air brake system, replacing this as preventative maintenance is a smart move. We carry these at Fixparts Online, and getting a new one is a lot cheaper than dealing with brake failure.

Warranty Information

Wabco EBS Axle Modulator 1-Channel Gen4 (MPN 4801065120) comes with a 1-year warranty.