20574763 SP1 Volvo FH12 Twin Cylinder Air Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is a critical engine-driven component within the air brake system of heavy commercial vehicles, designed to generate high-volume compressed air for pneumatic braking and auxiliary systems. By utilizing two piston-cylinder assemblies, it provides superior air output and faster reservoir filling compared to single-cylinder units, making it essential for high-demand applications.

Compatibility with Volvo FH12 engines

This specific unit is engineered for Volvo FH12 trucks equipped with D12D engines. It features a water-cooled design with a water inlet and outlet port size of M16x1,5, ensuring stable thermal management during heavy-duty operation. The unit includes an ESS feature and a water-cooled valve plate to maintain optimal performance under high pressure.

Technical specifications and installation

For professional installation, technicians should verify the through drive configuration and port dimensions. This compressor features an air inlet port of Ø35, an air outlet port of M26x1,5, and an air unloader port of M12x1,5. Ensure all connections are secure and the cooling lines are clear to prevent overheating.

Maintenance and selection guidance

When replacing this component, always verify that the swept volume of 704cm³ and the cylinder bore of Ø85.00 mm match the existing system requirements to ensure proper system pressure.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20574763SP1.