20845313 Volvo D9 Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component in the pneumatic braking system, providing the necessary air pressure for heavy commercial vehicle safety. Engineered with high-strength components, this unit is designed to withstand high-pressure cycles and intensive service conditions. The design includes a water-cooled valve plate to maintain optimal operating temperatures during continuous use.

Engine and vehicle compatibility

This specific unit is compatible with Volvo TAD1140-1172VE engines featuring the D9 configuration. It is engineered to meet the exact requirements of the engine's air demand system, ensuring seamless integration within the existing pneumatic architecture.

Technical specifications and installation

The assembly features an Ø85.00 mm cylinder bore and a 62 mm stroke, delivering a swept volume of 704cm³. For installation, note the M26x1,5 air outlet port and M16x1,5 water inlet/outlet ports. Ensuring that the water cooling lines are clear and the air unloader port is properly connected is vital for maintaining correct system pressure.

Maintenance and troubleshooting

To ensure long-term reliability, technicians should regularly inspect the water cooling lines and intake ports for any signs of debris or leaks. Proper maintenance of the associated air dryer and intake filters will help extend the service life of this compressor.

OE cross-reference

1300 180 003 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20845313.