Wabco 4154033120 Air Supply Unit

Description

The Wabco 4154033120 Air Supply Unit is a critical component of the air suspension system, commonly used in second-generation vehicles to provide consistent air pressure for optimal ride height and comfort. This unit delivers reliable performance and maintains vehicle stability by supplying air to the air springs. Engineered to OE specification, this air supply unit features a calculated volume of 21.66, operates at a maximum pressure of 14.4 bar, and utilizes AMP-Nr. 2-828879-1 for electrical connection. With port threads of Ø 5.0 mm and Ø 6.0 mm, and a protection class of IP 20, this device ensures durable and dependable operation within a temperature range of -40°C to +80°C at 12V. Its dimensions are 380 x 380 x 150 mm.

Key Features & Benefits

This thing basically creates the compressed air that feeds your air suspension system. It pumps air into the air springs – those big rubber bladders under your car – to keep everything level and give you a smooth ride. It also manages the air pressure, raising and lowering the suspension as needed, and it can even handle things like leveling the vehicle when you have a heavy load in the back. Some systems use it to help with things like load height control. It's a key part of your air suspension, working alongside the air springs, height sensors, and the control module. Think of it as the heart of the system – if it’s not pumping air properly, nothing else will work right. It's usually located somewhere under the vehicle, often near the spare tire or underneath the body, and has both electrical connections and air lines running to it.

Symptoms, Risks & Replacements

Well, if it fails, you’ll notice if your car starts to sag, especially in the rear. The ride will become seriously bumpy and uncomfortable. You might get warning lights on the dash about your suspension. In some cases, the car might even drop completely to its lowest setting, making it undrivable. It’s responsible for keeping your car riding comfortably and safely. A failing unit puts stress on other parts of your suspension, too, so it's best to address it sooner rather than later. You can find replacements pretty easily, places like Fixparts Online usually have a good selection, but getting the right one for your specific model is important.

Warranty Information

Wabco Air Supply Unit (MPN 4154033120) comes with a 1-year warranty.