20846000 SP1 Volvo FM11 D11B Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is a vital component for the pneumatic braking and air supply system of heavy commercial vehicles. Engineered to provide consistent air pressure, it utilizes a water-cooled design to manage thermal loads during continuous operation, ensuring long-term durability in demanding environments.

Vehicle and engine compatibility

This specific unit is designed for use in Volvo FM11 trucks equipped with D11B engines. It is engineered to meet the precise requirements of the vehicle's air system, featuring a through drive configuration and integrated ESS features for optimized performance. Check the compatibility list.

Installation and maintenance guidance

When performing installation or maintenance, technicians should verify the water inlet and outlet port sizes, which are M16x1,5, and ensure the M26x1,5 air outlet port is correctly seated. Proper alignment of the drive gear is essential for preventing premature wear within the air brake compressor system.

Selection and troubleshooting

To ensure correct fitment, always compare the mounting flange and port locations of the replacement unit with the existing component on the engine.

OE cross-reference

1300 190 003 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20846000SP1.