20774294 SP1 Compressor Twin Cylinder — Volvo FM11

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system, providing the necessary air pressure for heavy commercial vehicle operations. Engineered with heavy-duty grade materials, it ensures reliable air delivery under demanding service conditions. The unit is specifically designed for water-cooled systems to maintain optimal operating temperatures during continuous use.

Vehicle and engine compatibility

This component is designed to fit Volvo FM11 trucks equipped with D11B engines. It is essential to verify that the mounting flange, drive gear, and port sizes match the original equipment to ensure seamless integration into the existing air brake system.

Installation and maintenance

Technicians should pay close attention to the port specifications during installation, specifically the M26x1,5 outlet port and the M16x1,5 water inlet and outlet ports. Regular inspection of the water cooling lines and the ESS feature functionality is recommended to prevent system pressure fluctuations.

Selection guidance

When replacing this unit, always confirm that the swept volume of 636cm³ and the through-drive configuration are identical to the removed part to maintain correct system air demand.

OE cross-reference

1300 190 003 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20774294SP1.