20845313 Compatible Twin Cylinder Compressor — Volvo

What does a twin cylinder compressor do?

This twin cylinder compressor plays a vital role in the pneumatic system of heavy commercial vehicles by ensuring rapid and reliable air pressure generation. Designed with high-strength components, this water-cooled unit is integrated into the engine cooling circuit to prevent overheating during sustained heavy-duty operation, making it ideal for intensive service environments.

Vehicle and engine compatibility

This specific model is designed for Volvo B9TL trucks featuring D9B engines. It provides the necessary air output required by these heavy-duty vehicle systems to maintain optimal brake and suspension performance. The unit features a through drive design and includes an ESS feature for enhanced system reliability.

Technical installation and maintenance

For professional technicians, maintaining correct port connections is essential. This unit features an M26x1.5 air outlet port and M16x1.5 ports for both the air unloader and water connections. The Ø35mm air inlet ensures efficient intake, while the 22.5 kg construction supports robust mounting during installation.

System reliability and selection

Regular inspection of the water-cooled valve plate and inlet/outlet seals is recommended to ensure peak efficiency and prevent pressure drops within the braking system.

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.