20382346 Compatible VHD D12 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air compressor is a vital component within the pneumatic braking system of heavy commercial vehicles. It functions by compressing atmospheric air to provide the necessary pressure for braking and auxiliary pneumatic systems. Built with high-strength components, it ensures consistent performance under the demanding thermal conditions found in heavy-duty engine environments.

Engine and vehicle compatibility

This specific unit is designed for Volvo VHD models equipped with D12 engines. It features a water-cooled design to maintain optimal operating temperatures, with M16x1.5 water inlet and outlet ports. The assembly includes a water-cooled valve plate and is compatible with Volvo OE specifications to ensure precise system integration.

Installation and maintenance

For professional installation, technicians should verify the drive type and ensure the water cooling lines are clear of debris. The unit features an M26x1.5 air outlet port and an M12x1.5 air unloader port. Regular inspection of the air inlet port (Ø35) and mounting integrity is recommended to prevent pressure drops in the pneumatic circuit.

Troubleshooting guidance

Maintaining proper cooling flow through the M16x1.5 ports is essential for the longevity of the internal components. If pressure build-up appears inconsistent, check the unloader port and valve plate functionality. Consult your authorized distributor.

OE cross-reference

1300 025 001 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20382346.