20451727 Volvo VNL D12 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor is engineered to provide consistent pneumatic pressure within the vehicle's air brake system. Designed with heavy-duty grade materials, it features a water-cooled valve plate to manage thermal loads effectively during continuous operation in heavy commercial vehicle applications.

Vehicle and engine compatibility

This component is specifically fitted to Volvo VNL trucks equipped with D12 engines. It functions as a critical part of the air supply circuit, ensuring that the pneumatic braking system receives sufficient pressure for safe operation. Check the compatibility list.

Technical specifications and ports

Technical specifications include a swept volume of 318cm³, an air inlet port of Ø35, and an air outlet port of M26x1.5. The unit utilizes a water-cooled configuration with M16x1.5 inlet and outlet ports to maintain optimal working temperatures.

Maintenance and installation guidance

To ensure proper function, technicians should inspect the water cooling lines and the M12x1.5 unloader port during routine maintenance intervals to prevent pressure fluctuations in the braking circuit.

OE cross-reference

1300 025 002 (Single Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20451727.