21379906 SP2 Volvo FM11 D11B Twin Cylinder Compressor

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 operation. Built with high-strength components, it ensures reliable performance under demanding service conditions. The unit is engineered to maintain consistent air delivery to support the braking and pneumatic systems of the vehicle.

Compatibility and engine fitment

This specific model is designed for use in Volvo FM11 trucks equipped with D11B engines. It features a water-cooled design with a Ø85.00 mm cylinder bore and a 62 mm stroke, providing a swept volume of 704cm³. The unit includes an ESS feature and a water-cooled valve plate to manage thermal loads effectively during operation.

Installation and maintenance

For correct installation, technicians should verify that the M26x1,5 outlet port and M16x1,5 inlet/unloader ports match the existing vehicle configuration. It is essential to ensure the through drive and mounting flange align perfectly with the engine's requirements to prevent system leaks or mechanical mismatch.

System integration guidance

When replacing this unit, always verify that the drive gear and cooling connections are identical to the original equipment to ensure seamless integration into the existing air brake system.

OE cross-reference

1300 190 007 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21379906SP2.