Wabco 4493590230 Wiring Harness

Description

This Wabco wiring harness (MPN 4493590230) is a critical component within air brake systems, specifically for Electronic Braking Systems (EBS). It facilitates the connection between the tractor and trailer, enabling crucial communication for braking and safety functions. The harness features a 4-pin Code C and Code B connector, alongside two 2-pin sensor plugs on one end, and a bayonet plug conforming to ISO 15170-B1-3.1-Sn/K1 standard on the other. Its dimensions are 50 x 360 x 360 mm, and it is manufactured to OE specification. This design ensures reliable signal transmission, minimizes electrical resistance, and maximizes the longevity of the braking system connection.

Key Features & Benefits

This harness is basically the central nervous system for your electronic braking system. It’s a bundled set of wires, connectors, and usually some protective sleeving, and it transmits all the signals between the various components – the ABS module, wheel speed sensors, the brake control unit, even things like the traction control. It handles power and data, letting those parts “talk” to each other. It isn’t just a few wires slapped together; it’s designed to handle the specific demands of a braking system, which are pretty high. Think of it as the pathway for all the critical information that lets your electronic braking system work correctly. The wheel speed sensors send data through this harness to the ABS module. That module then uses that info, and sends signals back through the harness to activate things like the ABS pump or the traction control system. It connects everything – sensors, the computer, the actuators – allowing them to work as one. Without it, those systems are just isolated parts.

Symptoms, Risks & Replacements

It's genuinely vital for safety. If this harness is damaged – say, a wire breaks, a connector corrodes, or the insulation fails – you'll likely experience warning lights, and the ABS or traction control might stop working altogether. You’ll notice if it's bad, because your braking performance will definitely be affected. It acts like a shield for those delicate signals, protecting them from interference and ensuring everything gets the information it needs, when it needs it. A faulty harness can cause intermittent problems that are hard to diagnose, or a complete system failure. You can find a replacement pretty easily - places like Fixparts Online have a good selection. But it's one of those things you really want to get right, for obvious reasons.

Warranty Information

Wabco Wiring Harness (MPN 4493590230) comes with a 1-year warranty.