Wabco 4700155202 Hydraulic Control Unit

Description

The Hydraulic Control Unit is a critical component within trailer air brake systems, responsible for managing and regulating hydraulic pressure to ensure optimal braking performance. It is specifically designed for use in air brake systems on trailers, contributing to vehicle safety and control. This Wabco unit, with MPN 4700155202, meets OE specifications for reliable operation and is designed to deliver precise hydraulic control. Its dimensions are 154 x 68 x 99 mm, allowing for a compact and efficient installation within the existing brake system.

Key Features & Benefits

This thing basically manages the hydraulic pressure going to your trailer brakes. It receives signals from your brake pedal, and then it proportionally applies the brakes on the trailer. It’s got solenoids inside – little electrically controlled valves – that open and close to regulate the fluid flow. It also handles things like brake force distribution, and some units even have built – in safety features to prevent wheel lockup. It’s a pretty complex little unit, but essentially it turns what you do with your foot into stopping power for your trailer. It’s a key part of your trailer brake system, naturally. It sits between your vehicle’s master cylinder and the brake lines running to the trailer. Think of it as the brains of the operation; the master cylinder creates the initial pressure, but the HCU controls how much pressure actually gets delivered to the trailer brakes. It ensures the trailer brakes work in sync with your truck or SUV. It’s essential for safe towing.

Symptoms, Risks & Replacements

Well, let's be blunt – trailer brakes are really important, and the HCU keeps them working right. If this unit fails, you could lose braking power to your trailer, or the brakes might apply unevenly. You’ll notice if it’s going bad – you might feel a pulsing in the brake pedal, the trailer might try to “push” you around when you slow down, or the brakes might just feel weak. It’s a safety item, plain and simple. You want to address any issues with it right away. We carry a good range of these at Fixparts Online, and honestly, it's one of those parts you don't want to skimp on. A failing unit can quickly turn a normal drive into a dangerous situation.

Warranty Information

Wabco Hydraulic Control Unit (MPN 4700155202) comes with a 1-year warranty.