20382345 SP1 Volvo FM9 D9B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This water-cooled twin cylinder compressor serves as a critical component in the pneumatic braking system of heavy commercial vehicles. Designed for high-demand environments, the unit utilizes a water-cooled design to maintain thermal stability during sustained operation. The internal architecture features a Ø85.00 mm cylinder bore and a 62 mm stroke, providing a total swept volume of 704cm³ to meet the air demand requirements of the vehicle's braking circuit.

Vehicle and engine compatibility

This specific unit is engineered for compatibility with Volvo FM9 trucks equipped with D9B engines. To ensure correct fitment, technicians should verify the existing drive gear configuration and the water cooling circuit connections. This compressor is suitable for professional workshop applications where reliability in heavy-duty duty cycles is required.

Installation and maintenance guidance

Installation should be performed by a qualified workshop technician to ensure all ports are correctly seated. The unit features an M26x1,5 air outlet port and M16x1,5 water inlet and outlet ports. It is essential to check that the drive gear and mounting flange match the original equipment exactly to prevent leaks or mechanical misalignment.

Selection and replacement advice

When replacing a compressor, always check if the existing system requires an ESS feature or specific unloader port sizes to maintain proper pressure regulation.

OE cross-reference

1300 180 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20382345SP1.