20775224 SP1 Twin Cylinder Compressor for Volvo FM12

What does a twin cylinder compressor do?

This twin cylinder compressor is a critical component of the air brake system, designed to provide high-pressure air delivery for heavy commercial vehicle braking and pneumatic systems. Its dual-cylinder configuration ensures superior performance and higher air output compared to single-cylinder units, making it ideal for demanding service environments. The unit is constructed from high-strength components to withstand continuous heavy-duty operation.

Vehicle and engine compatibility

This specific model is compatible with Volvo FM12 trucks equipped with D12D engines. The design ensures precise fitment within the engine's drive system, utilizing a through-drive mechanism and specific port configurations including an M26x1,5 air outlet and M16x1,5 water ports. It is engineered to meet the exact technical requirements of the original equipment.

Installation and maintenance guidance

For optimal performance, technicians should verify that the water inlet and outlet ports align with the vehicle's cooling system. This unit features a water-cooled valve plate and an ESS feature to manage thermal loads effectively during operation. Regular inspection of the air inlet port (Ø35) and unloader port (M12x1,5) is recommended during routine maintenance to prevent contamination.

Selection and replacement

When replacing a worn unit, ensure that the new compressor matches the drive gear and mounting specifications of the removed part to prevent system mismatching.

OE cross-reference

1300 185 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20775224SP1.