20569251 SP1 Volvo B13R D13B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is a critical component within the pneumatic braking system of heavy commercial vehicles. It functions by converting engine power into compressed air pressure required for safe and effective braking operations. Engineered with high-strength components, this unit ensures consistent performance under demanding service conditions.

Vehicle and engine compatibility

This specific model is designed for use in Volvo B13R trucks equipped with D13B engines. The unit features a water-cooled design to manage thermal loads effectively during continuous operation. Its construction includes a water-cooled valve plate and ESS feature to maintain optimal system stability within the vehicle's air supply network.

Installation and technical specifications

When performing installation or maintenance, technicians should verify the port sizes and drive configuration. This unit features an Ø85.00 mm cylinder bore, a 56 mm stroke, and an M26x1,5 air outlet port alongside an M16x1,5 water inlet/outlet. Ensure all connections are secure to prevent pressure drops in the pneumatic circuit.

Maintenance and selection guidance

Always check the drive gear and mounting flange against the existing unit to ensure exact fitment. Proper selection ensures the compressor integrates seamlessly with the engine's drive mechanism and the vehicle's air management system.

OE cross-reference

1300 190 012 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20569251SP1.