20773343 Volvo FH12 D12D Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor provides essential air pressure for the pneumatic braking systems of heavy commercial vehicles. Engineered with high-strength components, it ensures consistent performance under demanding operating conditions. The unit features a water-cooled valve plate and an integrated ESS feature to maintain optimal thermal stability during operation.

Vehicle and engine compatibility

This component is specifically designed for Volvo FH12 trucks equipped with D12D engines. It maintains strict compatibility with the required air delivery specifications for the vehicle's braking system. It is also fitted to other Volvo heavy commercial vehicles within the same engine series.

Installation and maintenance guidance

For proper installation, technicians should verify the M26x1.5 air outlet port and M16x1.5 water inlet/outlet ports are correctly seated. This through-drive unit requires careful monitoring of the cooling system to ensure the water-cooled mechanism functions effectively throughout its service life.

System performance and selection

Regular inspection of the air unloader port and cylinder seals can help prevent pressure drops in the pneumatic system.

OE cross-reference

1300 180 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20773343.