MAN 81504109747 spring brake cylinder

Description

The MAN 81504109747 spring brake cylinder is a critical component within the brake system of commercial vehicles, specifically designed to apply the spring brakes when air pressure is lost. This cylinder converts air pressure into mechanical force, pushing the brake shoes against the brake drums or rotors to bring the vehicle to a stop. It ensures reliable emergency braking and parking functionality. This spring brake cylinder delivers enhanced stopping power and improved safety due to its precise engineering and durable construction. The dimensions of this cylinder are standard size for its application.

Key Features & Benefits

This little guy basically takes the hydraulic pressure from your master cylinder—that's what you push when you hit the brake pedal—and turns it into mechanical force that pushes out the brake shoes or pads against the drums or rotors. It's got a spring inside that pushes the piston back in when you release the pedal, so everything isn’t dragging. Think of it like a strong arm that does the actual stopping work at each wheel. It's a hydraulic actuator, really. It’s part of your braking system, obviously, and is located at each wheel. You'll have one for each brake, usually. It works with the master cylinder and brake lines to create the stopping power. It’s a slave cylinder because the master cylinder tells it what to do. It’s a key piece in getting your vehicle to slow down and stop safely.

Symptoms, Risks & Replacements

Honestly, it’s super important. If this thing fails, you'll lose braking power at that wheel. You'll definitely notice if one is going bad – pulling to one side when you brake, a spongy pedal, or even a wheel locking up are all signs. It acts like a shield between the hydraulic pressure and the mechanical action of your brakes. It needs to be reliable because your safety depends on it. We carry a lot of these at Fixparts Online, and honestly, it's one of those parts you don’t want to cheap out on – a good quality cylinder is worth it for peace of mind.

Warranty Information

MAN spring brake cylinder (MPN 81504109747) comes with a 1-year warranty.