Wabco 9502040040 Air Reservoir 4L

Description

The Wabco 9502040040 Air Reservoir 4L is a critical component in commercial vehicle air brake systems, storing compressed air to ensure reliable brake function. It is used in trucks, buses, and other heavy-duty vehicles. This reservoir is constructed of steel and maintains a calculated volume of 7.278, with a 4 liter capacity, designed to meet OE specifications for performance and durability. Its dimensions are 154 x 278 x 170 mm, and it is capable of operating up to 15.5 bar within a temperature range of -50°C to +100°C, offering consistent and dependable air supply for optimal braking performance.

Key Features & Benefits

This thing basically stores compressed air. Think of it as a holding tank for the air your compressor makes. The compressor doesn't always run constantly, it cycles on and off. So, the reservoir keeps a supply of air ready to go whenever you need it—when you hit the brakes, activate the air suspension, or use any other air – powered component on the vehicle. It smooths out the pressure, so you don't get surges or drops when things activate. It also includes a safety valve to prevent over – pressurization. It’s a key part of your air brake system, obviously. It works alongside the air compressor and the brake lines. The compressor pumps air into the reservoir, building up pressure. When you press the brake pedal, air from this reservoir is released to the brake chambers at each wheel, which then apply the brakes. It’s not just for brakes though; some trucks and larger vehicles use air for things like shifting gears, activating the parking brake, or inflating air suspension components.

Symptoms, Risks & Replacements

Well, without it, your brakes wouldn't work reliably, or at all. It’s crucial for stopping power, and safety. You’ll notice if this starts failing because you'll likely experience reduced braking performance—it might feel spongy, or take longer to stop. A leak in the reservoir means the system has to work harder to maintain pressure, and that can eventually lead to complete brake failure. You can often find these online, places like Fixparts Online carry a good range. It's one of those parts you really don't want to put off replacing if it’s showing signs of wear.

Warranty Information

Wabco Air Reservoir 4L (MPN 9502040040) comes with a 1-year warranty.