20733972 Compatible VHD D12 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air compressor is a vital component of the pneumatic braking system, responsible for providing consistent air pressure to the vehicle's braking circuits. Engineered with high-strength components, it ensures reliable operation even under the demanding conditions of heavy commercial vehicle service.

Compatible vehicles and engines

This specific unit is designed to fit Volvo VHD trucks equipped with D12 engines. It features a swept volume of 318cm³, an air inlet port of Ø35, and an air outlet port of M26x1,5. The design includes a water-cooled valve plate to manage thermal loads efficiently during operation.

Installation and maintenance

For workshop technicians, installation requires careful attention to the water inlet and outlet ports (M16x1,5) to ensure proper cooling flow. The unit is a through-drive type and includes an ESS feature for optimized performance. Always verify the cooling type and port sizes before replacement.

Troubleshooting and selection

Regular inspection of the air unloader port (M12x1,5) and checking for leaks in the water cooling lines can prevent system failures. Maintaining the integrity of the air supply is essential for the safety of the heavy commercial vehicle.

OE cross-reference

1300 025 002 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20733972.