20824559 SP1 Volvo B11R D11A Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system of heavy commercial vehicles, ensuring consistent pneumatic pressure for braking and auxiliary functions. Built with high-strength components, it provides the necessary air supply required for demanding operational environments.

Vehicle and engine compatibility

This specific model is designed for compatibility with Volvo B11R vehicles equipped with D11A engines. It features a swept volume of 636cm³, a Ø85.00 mm cylinder bore, and a 56 mm stroke. The unit is equipped with ESS features and a water-cooled valve plate to manage thermal loads effectively during continuous operation.

Installation and maintenance

For proper installation, technicians should verify the M26x1,5 air outlet port and M16x1,5 water inlet/outlet ports against the existing system configuration. This through-drive unit is designed for precise integration into the engine's drive assembly to maintain optimal air delivery intervals.

System performance

When replacing the unit, ensure all port connections are secure and the water cooling lines are free of obstructions to prevent overheating. Consult your authorized distributor for fitment verification.

OE cross-reference

1300 190 010 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20824559SP1.