Wabco 4491243370 ABS Wiring Harness

Description

The Wabco 4491243370 Supply Cable with ABS-Plug is a critical component within trailer brake control systems, specifically designed for air brake applications. This cable serves as the power supply line (VCS 2) connecting the ABS module to the trailer's electrical system. It's engineered to meet OE specifications, ensuring reliable performance and compatibility. The cable features a 7-pin ISO 7638 socket and open 3-strand wiring (2 x 2.5 mm², 1 x 1.5 mm²) on one end, and an X1 8-pin power connector on the other. Its dimensions are 137 x 398 x 400 mm, and it has a total length of 12.0 / 12.0 m. This design provides a robust and dependable connection for essential braking functions.

Key Features & Benefits

This harness is basically the nervous system for your trailer's anti – lock braking system. It’s a bundled set of wires and connectors that carries the signals between the ABS module – that’s the brains of the operation – and the wheel speed sensors on each wheel, and sometimes to the ABS control valve. It’s how everything talks to each other. It handles power and the data telling the system how fast each wheel is spinning. Think of it like this: the wheel speed sensors are the eyes, seeing how fast things are turning. They send that info back through this harness to the ABS module. The module then decides if a wheel is about to lock up during braking, and sends a signal through the harness to the control valve to adjust the braking force. It's a complete communication loop. It's specifically for trailers with electric brakes that have an ABS system added. It doesn’t handle the basic brake function itself, just the ABS portion.

Symptoms, Risks & Replacements

Well, if this harness goes bad, your ABS system stops working, plain and simple. You’ll notice if you lose ABS because the ABS light will illuminate on your dash. More importantly, without ABS, you lose that extra layer of control, especially in slippery conditions. The ABS system prevents wheel lock – up, helping you maintain steering control during hard braking. This harness acts like a shield, protecting those critical signals. A bad connection, a frayed wire, corrosion—any of that can disrupt the system. It’s a relatively small part, but it plays a big role in safety. You can find these harnesses, and a lot of other trailer parts, over at Fixparts Online if you’re looking to replace it.

Warranty Information

Wabco ABS Wiring Harness (MPN 4491243370) comes with a 1-year warranty.