85000065 SP1 Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system, utilizing two piston-cylinder assemblies to generate high-volume compressed air. By providing two compression strokes per revolution, this unit ensures rapid reservoir filling and consistent pressure delivery, which is essential for the safety and reliability of heavy commercial vehicle braking operations.

Compatibility and engine fitment

Specifically designed for Volvo FL12 trucks equipped with TD123 engines, this water-cooled unit maintains optimal thermal stability during sustained high-demand cycles. The design features a Ø88.00 cylinder bore and a 50 mm stroke, producing a swept volume of 608cm³. It is engineered to operate within the engine's coolant circuit to manage heat effectively under heavy-duty service conditions.

Technical specifications and installation

For professional technicians, installation requires verifying the cooling circuit connections via the M16x1.5 water ports and ensuring the M26x1.5 air outlet is properly seated. This gear-driven unit includes an integrated unloader port (M22x1.5) and an ESS feature to optimize system performance and prevent over-pressurization during operation.

Maintenance and selection guidance

When replacing the unit, it is vital to verify that the drive gear, mounting flange, and all port locations match the existing component exactly to ensure seamless integration into the pneumatic system.

OE cross-reference

1300 050 006 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000065SP1.