3987602 SP1 Volvo FL12 TD123 Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system, providing the necessary compressed air to ensure reliable braking performance. Designed for high-duty cycles, this unit utilizes two piston-cylinder assemblies to deliver higher air output compared to single-cylinder alternatives, facilitating faster reservoir filling in heavy commercial vehicles.

Vehicle and engine compatibility

This specific model is designed for use in Volvo FL12 trucks equipped with TD123 engines. It features a water-cooled design to maintain thermal stability during long hauls and high-demand operations. The unit includes a water-cooled valve plate and an ESS feature to support efficient system integration within the engine's cooling circuit.

Installation and technical specifications

For correct installation, technicians should verify the water inlet and outlet port requirements (M16x1,5) and the air outlet configuration (M26x1,5). Given the precision of the Ø88.00 bore and 50 mm stroke, ensuring the mounting interface and drive gear match the removed unit is essential for proper fitment.

Maintenance and selection guidance

Regular inspection of the water connections and air ports is recommended to prevent leaks or thermal issues. Matching the component against the original equipment specifications ensures optimal performance and longevity within the pneumatic system.

OE cross-reference

1300 050 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3987602SP1.