85000066 SP1 Volvo Compatible Twin Cylinder Compressor

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, generating the necessary compressed air through two piston-cylinder assemblies. By utilizing two compression strokes per crankshaft revolution, this unit provides a higher air output than single-cylinder alternatives, ensuring faster reservoir filling for high-demand applications.

Compatibility with Volvo engines

This specific model is designed for compatibility with Volvo D16 engines. It features a water-cooled design with a Ø88.00 mm cylinder bore and a 50 mm stroke to maintain stable performance under heavy loads. The unit includes an integrated ESS feature and a water-cooled valve plate to manage thermal stresses effectively during operation.

Technical specifications and installation

For professional installation, technicians should verify the mounting interface and port configurations. This unit features an M26x1,5 air outlet port, an M22x1,5 air unloader port, and M16x1,5 water inlet/outlet ports. It is essential to ensure that the through-drive mechanism matches the existing engine configuration to prevent drive gear misalignment.

Maintenance and troubleshooting

Maintaining proper coolant flow through the water ports is vital for preventing overheating in these high-capacity units. When replacing an old unit, always cross-reference the mounting flange and port locations to ensure seamless integration into the vehicle's pneumatic system.

OE cross-reference

1300 090 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000066SP1.