20842990 SP1 Volvo B9TL D9B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor provides the high-pressure air supply necessary for the pneumatic braking systems of heavy commercial vehicles. Designed for high-demand operating environments, it ensures rapid pressure buildup and consistent performance through its robust dual-cylinder architecture.

Vehicle and engine compatibility

This specific unit is compatible with Volvo B9TL trucks equipped with D9B engines. Due to the technical variations in drive types and cooling interfaces, it is essential to verify that the mounting flange and port locations match the original equipment specifications before installation.

Technical specifications and maintenance

The unit features a water-cooled design to maintain thermal stability during sustained operation, preventing overheating under heavy loads. It includes an M16x1,5 water inlet and outlet port, an M26x1,5 air outlet, and an M35 air inlet port. For optimal service life, technicians should regularly inspect the cooling circuit and air intake filters.

Installation guidance

When replacing this component, ensure the gear drive and ESS features align with the existing engine configuration to prevent system mismatch.

OE cross-reference

1300 180 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20842990SP1.