20866605 Twin Cylinder Compressor for Volvo B9TL

What does a twin cylinder compressor do?

This twin cylinder compressor provides high-capacity air generation for heavy commercial vehicle braking systems. Engineered with a 704cm³ swept volume and a 62 mm stroke, it ensures rapid air pressure buildup to meet the demands of heavy-duty operations. The water-cooled design utilizes the engine cooling circuit to maintain optimal thermal stability during sustained use.

Vehicle and engine compatibility

This component is specifically compatible with Volvo B9TL models equipped with D9B engines. It serves as a reliable replacement for original equipment in high-demand pneumatic systems, ensuring consistent air delivery for the braking circuit and other pneumatic functions.

Installation and maintenance guidance

Technicians should verify the M26x1,5 air outlet port and M16x1,5 water inlet/outlet ports during installation. This unit features a water-cooled valve plate and an integrated unloader port (M12x1,5) to support efficient system regulation and prevent overheating during long-haul operation.

System performance and selection

Regular inspection of the water cooling lines and air ports is recommended to maintain peak efficiency in the pneumatic system.

OE cross-reference

1300 185 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20866605.