Wabco 4801020640 EBS Trailer Modulator 24V

Description

The Wabco 4801020640 EBS Trailer Modulator 24V is a critical component within a trailer's air brake system. It's designed for use in EBS (Electronic Braking System) applications, ensuring optimal braking performance and safety. This premium TEBS E with PEM version modulator, manufactured in Poland, features multiple port connections including M22 x 1.5 JED-152, M16 x 1.5 JED-152, and integrated silencers. It operates at 24V and within a temperature range of -40°C to +65°C, with a max operating pressure of 8.5 bar. Its robust design, meeting OE specifications and boasting an IP 6K9K protection class, delivers reliable and consistent performance in demanding conditions. The unit's dimensions are 200 x 225 x 280 mm, with a bolt spacing of 70mm.

Key Features & Benefits

This thing basically controls the air brakes on your trailer. It takes the signal from your truck’s brake pedal – telling it how hard you’re braking – and translates that into the right amount of air pressure going to the trailer’s brakes. It manages things like anti – lock braking for the trailer, and it can also help prevent wheel lockup during hard stops. It also monitors the trailer's brake system for faults—things like low air pressure or a broken line—and will alert you in the cab. Think of it as the brain controlling the trailer's braking. Your truck has its own braking system, naturally, but this modulator is dedicated to making sure the trailer brakes work with your truck’s brakes safely and efficiently. It’s positioned in the air brake line between the tractor protection valve and the trailer supply line. It takes the electrical signal from your truck and converts it into pneumatic control.

Symptoms, Risks & Replacements

Well, it’s a safety thing, plain and simple. If this modulator fails, your trailer brakes might not apply correctly—or at all. That means longer stopping distances, potential loss of control, and a really dangerous situation. You’ll notice if it's going bad. Things like erratic trailer braking, the trailer pulling to one side, or warning lights on your dash are all signs. It acts like a shield, protecting you from a serious accident. You can find these online pretty easily; Fixparts Online carries a good range of them, and they’re a reliable source. But getting a working one is really key to keeping everything safe on the road.

Warranty Information

Wabco EBS Trailer Modulator 24V (MPN 4801020640) comes with a 1-year warranty.