Wabco 9518110030 Air Suspension Bellows

Description

This Wabco Air Suspension Bellow is designed for use in truck suspension systems, providing a comfortable and stable ride by isolating the vehicle from road imperfections. It replaces failing air springs, restoring the original ride height and handling characteristics. This bellow features a robust construction to withstand the demanding conditions of commercial vehicle operation, enhancing durability and reducing maintenance costs. With dimensions of 253 x 253 x 362 mm, and a stroke of 400.0 mm, it is engineered to meet OE specifications. The maximum operating pressure is 7.0 bar, and it features mounting options of 1x Male M12 x 1.75 / 1x Female M12 x 1.75, as well as port threads of Male M20 x 1.5 / Female M12 x 1.5. The bellow operates within a temperature range of -40°C to +70°C and has a total length of 385.0 mm. Its calculated volume is 23.171, and the maximum diameter is 355 mm, with a distance between bolts of 157.5 mm.

Key Features & Benefits

These are basically heavy – duty, flexible containers. They fill with compressed air and that’s what actually supports the weight of your vehicle instead of a traditional steel spring. They can inflate and deflate, adjusting the ride height and stiffness. They work with the air suspension system – there’s a compressor, sensors, and a computer controlling everything. Think of it like this: a regular spring is a fixed amount of support. These bellows act like a variable spring. They level the vehicle automatically, even with a heavy load in the back, or uneven weight distribution. Some cars use them to adjust ride height for better aerodynamics at speed or to raise the vehicle for extra ground clearance. They’re especially common on luxury cars, SUVs, and trucks where ride comfort and load – leveling are important.

Symptoms, Risks & Replacements

Well, if one of these fails, you’ll notice it pretty quickly. The car will likely sit unevenly, and the ride will be…rough, to say the least. It can even make the vehicle unsafe to drive. Also, since it’s part of a system, a failing bellows can put extra strain on the compressor and other components, potentially leading to more expensive repairs down the line. We carry a good selection of these, and you can find a lot of options on Fixparts Online if you want to browse. Getting a good quality replacement is key to restoring your vehicle's handling and comfort.

Warranty Information

Wabco Air Suspension Bellows (MPN 9518110030) comes with a 1-year warranty.