20842990 Compatible Twin Cylinder Compressor — Volvo

What does a twin cylinder compressor do?

This twin cylinder compressor plays a critical role in the pneumatic braking system by providing the necessary air pressure for heavy commercial vehicle operations. Designed with high-strength components, this water-cooled unit is built to withstand rigorous duty cycles and maintain consistent air output under heavy loads.

Vehicle and engine compatibility

This specific model is compatible with Volvo B9L trucks equipped with D9B engines. The unit features a through-drive design and includes an ESS feature to optimize system performance within the engine's cooling circuit.

Installation and maintenance

For proper installation, technicians should verify the M26x1,5 air outlet port and M16x1,5 water inlet/outlet ports. Ensuring all connections are secure and the cooling circuit is free of obstructions will maintain the integrity of the Ø85.00 mm bore and 62 mm stroke operation.

System performance and troubleshooting

Regular inspection of the water-cooled valve plate and unloader ports helps prevent pressure drops in the pneumatic circuit. Consult your authorized distributor.

OE cross-reference

1300 180 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20842990.