20429339 Volvo FL12 TD122 Air Brake Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system, providing the necessary pneumatic pressure for braking and auxiliary functions. Built with high-strength components, it ensures consistent air delivery even under demanding operating conditions. The water-cooled design helps manage thermal loads effectively during continuous operation.

Vehicle and engine compatibility

This unit is specifically compatible with Volvo FL12 trucks equipped with TD122 engines. It maintains high efficiency through its dual-cylinder configuration and optimized air flow via the Ø88.00 mm bore and 50 mm stroke. It is also fitted to other heavy commercial vehicles requiring high-capacity air production.

Installation and maintenance guidance

For proper installation, technicians should verify that the water inlet and outlet ports (M16x1.5) align with the engine's cooling circuit. Ensure that the M26x1.5 air outlet and M22x1.5 unloader port are correctly sealed to prevent pressure drops. Regular inspection of the water-cooled valve plate is recommended to maintain peak performance.

Troubleshooting and selection

When replacing this unit, always match the mounting flange and drive configuration to the existing engine setup to avoid system mismatching.

OE cross-reference

1300 050 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20429339.