20733974 Volvo FM Compatible Air Compressor

What does an air compressor do?

This single cylinder air compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. Engineered with high-strength components, it provides the necessary compressed air to ensure consistent brake actuation and system pressure. The design incorporates a water-cooled valve plate to manage thermal loads during continuous operation.

Vehicle and engine compatibility

This unit is specifically compatible with Volvo FM models, including the FM 300, FM 340, FM 380, FM 400, FM 440, and various other configurations within the FM series. It is built to meet the rigorous demands of heavy-duty duty cycles in commercial transport environments.

Installation and maintenance

Technicians should note the technical specifications: a Ø85.00 mm bore, a 56 mm stroke, and an M26x1.5 air outlet port. Installation requires connection to the water cooling circuit via the M16x1.5 inlet and outlet ports. Regular checks of the unloader port (M12x1.5) are recommended to ensure optimal unloading performance.

Troubleshooting guidance

To ensure proper function, verify that the through drive mechanism is correctly aligned during installation and check all connections to prevent pressure drops in the braking circuit.

OE cross-reference

1300 025 002 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20733974.