20574763 SP1 Compatible Twin Cylinder Compressor — Volvo

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles, providing the necessary air pressure for reliable deceleration and auxiliary functions. Engineered with high-strength components, this unit is designed to withstand the rigorous thermal and pressure cycles typical of heavy-duty engine environments.

Compatibility and engine fitment

This specific model is engineered for Volvo VHD trucks equipped with D12 engines. It features a water-cooled design to maintain optimal operating temperatures, including a water-cooled valve plate and ESS feature for enhanced efficiency. The unit utilizes an air inlet port of Ø35 and an air outlet port of M26x1,5 to ensure stable pneumatic flow.

Installation and maintenance

For proper installation, technicians should verify the through drive compatibility and ensure that the water inlet/outlet ports (M16x1,5) are correctly connected to the cooling circuit. Maintaining clean coolant and checking the M12x1,5 air unloader port regularly will help prevent system failures in the braking circuit.

Selection guidance

When replacing this unit, always cross-reference the existing component to ensure the swept volume of 704cm³ and drive gear configuration matches the vehicle requirements perfectly.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20574763SP1.