Wabco 9121260040 One-Cylinder Compressor

Description

The Wabco 9121260040 is a one-cylinder air compressor designed for use in air brake systems. This compressor provides a reliable source of compressed air for heavy-duty vehicles and equipment, ensuring effective brake operation. Its single-cylinder design balances performance with a compact footprint. Technical specifications include a calculated volume of 12.7, water cooling, a crankshaft thread of M20 x 1.5, lubrication supplied from the engine, a maximum operating pressure of 10.0 bar, an operating speed of 3000 (1/min), a piston diameter of 85 mm, a piston stroke of 56 mm, and various port thread sizes including Ø 30 mm, M26 x 1.5, M12 x 1.5, M10 x 1, and M14 x 1.5. The compressor measures 220 x 175 x 330 mm and has a swept volume of 318 cm3. It is manufactured to OE specification for consistent and dependable performance.

Key Features & Benefits

This compressor basically takes engine power and turns it into compressed air. It pumps air into the reservoir – that’s the tank you'll find somewhere on the vehicle – and keeps it pressurized. It has a few key jobs – it compresses the air, it has a safety valve to prevent over – pressurization, and an unloader valve that helps with engine starting, especially in cold weather. It's a pretty straightforward component, but vital. This compressor is the heart of your air brake system. If you've got air brakes – usually on larger vehicles, trucks, buses, some trailers – it’s what provides the air pressure needed to apply the brakes, and operate other air – powered components. Think of it like the pump in a water system – if the pump fails, you have no water pressure. The compressor creates that "pressure" for the brakes, steering, and other functions.

Symptoms, Risks & Replacements

It's really important. Without proper air pressure, your brakes won’t work, plain and simple. You’ll notice if it's failing – your low air pressure warning light will come on, brakes might feel spongy or weak, and it could take longer to stop. It acts like a shield, protecting you by enabling proper braking. A failing compressor means a serious safety issue. You can find these pretty easily, places like Fixparts Online carry a good range of them, and it's something you definitely want to address quickly.

Warranty Information

Wabco One-Cylinder Compressor (MPN 9121260040) comes with a 1-year warranty.