20845313 SP1 Volvo FM11 Twin Cylinder Air Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor plays a critical role in the pneumatic braking system of heavy commercial vehicles by providing consistent air pressure. Built with high-strength components, this unit is specifically engineered to withstand the rigorous thermal and mechanical demands of engine-driven air supply systems.

Compatibility and engine specifications

This component is compatible with Volvo FM11 trucks equipped with D11B engines. It features a water-cooled design with a swept volume of 704cm³ and an Ø85.00 cylinder bore. The unit includes an ESS feature and a water-cooled valve plate to maintain optimal operating temperatures during heavy-duty service.

Installation and technical guidance

For correct installation, technicians should verify that the water inlet and outlet ports (M16x1,5) match the existing cooling lines. The air outlet port is M26x1,5, and the air inlet port is Ø35. Ensure the drive gear and through drive mechanism align with the engine specifications before assembly.

Maintenance and selection

Consult your authorized distributor to ensure perfect fitment for your specific engine configuration.

OE cross-reference

1300 190 006 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20845313SP1.