20845313 Twin Cylinder Compressor for Volvo FM

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system, providing the necessary compressed air for reliable vehicle deceleration and auxiliary functions. Engineered with heavy-duty grade materials, it is built to withstand the high-pressure demands of heavy commercial vehicle operations while maintaining consistent performance through its water-cooled design.

Compatible Volvo FM models and engines

This specific unit is engineered for compatibility with Volvo FM models, including various power outputs from the FM 300 to the FM 500 series. It is specifically designed to fit Volvo FM11 trucks equipped with D11B engines. The component features an Ø85.00 mm cylinder bore and a 704cm³ swept volume to ensure efficient air production during transit.

Installation and maintenance guidance

For installation, technicians should verify the water inlet and outlet port connections (M16x1,5) to ensure secure integration with the cooling circuit. This unit features a through drive configuration and an integrated ESS feature for optimized system pressure management. Proper inspection of the M26x1,5 air outlet port is recommended during routine maintenance to prevent leaks.

System integration and selection

To ensure correct fitment, verify that the mounting flange and drive gear match the existing unit requirements. This part provides a reliable replacement for worn or failing compressors in heavy-duty fleets. Check the compatibility list.

OE cross-reference

1300 190 005 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20845313.