20569928 SP1 Volvo FM9 D9B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component in the pneumatic braking system of heavy commercial vehicles. Engineered for durability, the unit utilizes a water-cooled design to maintain thermal stability during sustained operation, ensuring consistent air delivery to the braking system and auxiliary pneumatic components.

Vehicle compatibility and engine fitment

This specific unit is engineered for compatibility with Volvo FM9 trucks equipped with D9B engines. It features a through-drive configuration and is designed to integrate seamlessly into the existing engine cooling circuit via the M16x1.5 water inlet and outlet ports.

Installation and maintenance guidance

When performing installation or replacement, technicians should verify that the drive gear and mounting flange match the existing setup exactly. This model includes an ESS feature and a water-cooled valve plate to enhance operational reliability under heavy-duty conditions.

Troubleshooting and selection

To ensure correct fitment, always check the drive type and port sizes against the removed unit's specifications. Maintaining correct coolant flow through the M16x1.5 ports is essential for preventing overheating during high-demand cycles.

OE cross-reference

1300 180 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20569928SP1.