85000487 Volvo B9R D9B Compatible 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, providing the high-capacity air generation required for reliable braking performance. Engineered with high-strength components, this unit is designed to handle sustained heavy-duty operation through its efficient water-cooled design.

Compatible vehicles and engine fitment

This specific model is engineered for Volvo B9R trucks equipped with D9B engines. It features a Ø85.00 cylinder bore and a 62 mm stroke, resulting in a swept volume of 704cm³. The unit includes an air unloader port (M16x1,5) and is compatible with Volvo OE requirements to ensure precise system integration.

Installation and maintenance guidance

For installation and maintenance, technicians should verify the water inlet and outlet ports (M16x1,5) to ensure proper connection to the engine cooling circuit. This water-cooled unit requires careful monitoring of the cooling flow to maintain optimal operating temperatures during long-haul service. Always check port sizes and mounting alignment before installation.

Troubleshooting and replacement

When replacing this unit, ensure that the new component matches the drive type and port locations of the removed part to avoid system mismatch.

OE cross-reference

1300 180 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000487.