4123520250 SP1 Single Cylinder Compressor for Mercedes-Benz

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a critical component in the pneumatic system of heavy commercial vehicles. It functions by compressing intake air and delivering it to the air processing unit, ensuring consistent pressure for the braking system. Built with heavy-duty grade materials, this unit is designed to withstand high thermal loads through its integrated water-cooling mechanism.

Vehicle and engine compatibility

This component is specifically compatible with Mercedes-Benz vehicles. The design includes a single-piston housing that provides stable performance for heavy-duty braking requirements. The assembly features a water-cooled valve plate and an ESS feature to maintain optimal operational stability during long-haul transport.

Installation and maintenance

For proper maintenance, technicians should inspect the M16x1,5 water inlet and outlet ports to prevent any coolant leaks that could lead to overheating. Given the Ø85.00 mm bore and 352cm³ swept volume, ensuring clean air intake through the M26x1,5 port is essential for maximizing the service life of the internal piston and rings.

Troubleshooting and maintenance

Regular checks of the water cooling circuit and unloader port are recommended to prevent system pressure fluctuations. Maintaining the integrity of the drive connection ensures that the compressor provides consistent air output for the vehicle's pneumatic demand. Consult your authorized distributor.

OE cross-reference

1100 035 021 (Single Cylinder Compressor) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 4123520250SP1.