A4571301215 Twin Cylinder Air Compressor for Mercedes-Benz

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical engine-driven component within the air brake system of heavy commercial vehicles. By utilizing two piston-cylinder assemblies, it generates a high volume of compressed air to ensure consistent pneumatic pressure across the entire braking circuit. The unit is engineered with heavy-duty grade materials to withstand the intense thermal and mechanical stresses found in heavy commercial vehicle environments.

Vehicle and engine compatibility

Specifically designed for compatibility with Mercedes-Benz, this water-cooled model ensures optimal temperature regulation during operation. It features an Ø85.00 mm cylinder bore, a 56 mm stroke, and a 636cm³ swept volume to meet high air demand requirements. This component is also fitted to various Mercedes-Benz applications requiring efficient air reservoir replenishment.

Installation and technical specifications

For professional installation, technicians should verify the M26x1,5 inlet and outlet ports and the M12x1,5 unloader port. This unit is a water-cooled type with a water-cooled valve plate and features through drive capability. Ensuring correct alignment of the mounting interface is essential for maintaining long-term seal integrity and preventing air leaks.

Maintenance and troubleshooting

Regular inspection of the cooling lines and port connections is recommended to prevent system pressure drops. Monitoring the performance of the ESS feature helps in maintaining stable air output throughout different engine RPM ranges.

OE cross-reference

1100 020 005 (Twin Cylinder Compressor) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4571301215.