A4571304815 SP1 Twin Cylinder Compressor for Mercedes-Benz

What does a twin cylinder compressor do?

This twin cylinder compressor is an essential engine-driven component within the air brake system of heavy commercial vehicles, providing the necessary compressed air for reliable braking performance. Designed with high-strength components, this unit utilizes two piston-cylinder assemblies to deliver higher air output than single-cylinder alternatives, ensuring faster reservoir filling even under high demand.

Compatibility and fitment

This specific model is compatible with Mercedes-Benz trucks and heavy commercial vehicles. It features a water-cooled design with M16x1,5 water inlet and outlet ports, and includes an integrated ESS feature to maintain system efficiency. The unit is engineered to meet the rigorous demands of heavy-duty service environments.

Installation and maintenance

Technicians should ensure that the M26x1,5 air inlet/outlet ports and the M12x1,5 unloader port are correctly aligned during installation to prevent leaks. Regular checks of the water cooling circuit and the valve plate integrity are recommended to maintain optimal compression cycles and prevent system pressure drops.

System performance

When replacing this unit, verify that the through-drive mechanism and mounting interface match the existing configuration to ensure seamless integration into the vehicle's pneumatic system.

OE cross-reference

1100 250 021 (Twin Cylinder Compressor) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4571304815SP1.