Wabco 4801066080 EBS Axle Modulator 1-Channel Gen4

Description

The Wabco EBS Axle Modulator 1-Channel Gen4 (MPN: 4801066080) is a critical component within the air brake system of commercial vehicles. It modulates the braking force applied to the axles, ensuring optimal stopping power and stability. This device is used in air processing units to regulate axle braking, contributing to vehicle safety and control. The modulator features a robust design with a protection class of IP 6K6K / IP 6K9K and operates within a temperature range of -40°C to +80°C, ensuring reliable performance in harsh conditions. Its dimensions are 125 x 128 x 181 mm, and it is designed to meet OE specifications, offering a direct replacement for original equipment. It operates on 24V with a rated current of 10500 mA and features various port threads including M22 x 1.5 JED - 388-4 and M16 x 1.5 JED - 388-4.

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 4801066080) comes with a 1-year warranty.