Wabco 4630903120 Trailer Air Suspension Control Valve

Description

The Wabco 4630903120 Trailer Air Suspension Control Valve is a critical component used in trailer air suspension systems, managing air pressure to maintain optimal ride height and stability. This device is designed for 2-circuit systems and ensures consistent performance under demanding conditions. It features M12 x 1.5 and M16 x 1.5 port threads, along with a DIN 72585-A1-3.6-Sn/K2 electrical connection. Its robust design, with dimensions of 218 x 92 x 186 mm and an IP 6K9K protection class, provides reliable operation in harsh environments. The valve operates at a maximum pressure of 10.0 bar, a voltage of 24 V, and a rated current of 0.34 A, while maintaining a temperature range of -40 to +65 °C. This OE specification valve provides enhanced durability and consistent performance for trailer applications.

Key Features & Benefits

This valve basically manages the air pressure going to your trailer’s air springs – those big rubber bags you see under the trailer. It controls how much air goes in and out, letting you raise and lower the trailer, and importantly, keep it level. It handles things like adjusting for different load weights, or compensating when you're on uneven ground. It also often controls things like automatic dump valves to help with hooking and unhooking. Think of it as the brain of your air suspension system. It receives signals from the height sensors on your trailer, and then uses those signals to open or close valves, directing compressed air where it needs to go. Without it, you wouldn’t be able to reliably control the height and level of your trailer, and you'd be riding pretty rough. It works with the air compressor and the air springs themselves as a whole system.

Symptoms, Risks & Replacements

Honestly, it's pretty important for a smooth and safe ride. If it starts failing, you’ll notice if your trailer is bouncing around more, or if it’s not sitting level. It affects handling a lot, especially at highway speeds. A faulty valve can even lead to uneven tire wear or, in a worst – case scenario, loss of control. You can find a good replacement at places like Fixparts Online – they usually have a good selection of these. Replacing it when you see signs of trouble keeps your load stable and your ride comfortable. It's one of those parts you really don't want to ignore until it's causing big problems.

Warranty Information

Wabco Trailer Air Suspension Control Valve (MPN 4630903120) comes with a 1-year warranty.