20382346 Volvo VNL D12 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. By converting mechanical energy from the engine into pressurized air, it ensures consistent air supply for braking and suspension functions. Built with high-strength components, this unit is designed to withstand the rigorous thermal and pressure demands of long-haul operations.

Compatible vehicles and engine fitment

This specific model is engineered for use in Volvo VNL trucks equipped with D12 engines. The assembly features a water-cooled design to maintain optimal operating temperatures, including a water-cooled valve plate for enhanced durability. It is also compatible with various heavy commercial vehicle applications requiring high-performance pneumatic air delivery.

Installation and maintenance guidance

Technicians should note the technical specifications during installation: the unit features an Ø35 air inlet port, an M26x1.5 air outlet port, and M16x1.5 water inlet/outlet ports. The inclusion of an ESS feature and through drive capability ensures seamless integration into existing engine configurations. Proper monitoring of the water cooling circuit is essential to prevent overheating during heavy-duty service.

System performance and selection

Regular inspection of the air unloader port and connection points helps prevent pressure leaks in the braking system. Selecting a high-quality replacement ensures consistent system pressure and prevents premature wear on other pneumatic components.

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.