21521357 Compatible Twin Cylinder Compressor for Volvo FM11

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system, ensuring consistent air pressure generation for heavy commercial vehicle safety. Engineered with high-strength components, this unit provides the necessary airflow required for reliable brake actuation and system stability during demanding operations.

Compatibility and technical specifications

This specific model is compatible with Volvo FM11 trucks equipped with D11B engines. It features a Ø85.00 mm cylinder bore, a 56 mm stroke, and a 636cm³ swept volume. The unit is designed for water-cooled operation and includes an integrated ESS feature to enhance system efficiency.

Installation and maintenance guidance

When performing installation or maintenance, ensure the water inlet and outlet ports (M16x1,5) are correctly aligned with the engine cooling circuit. This compressor utilizes an M26x1,5 air outlet port and an M12x1,5 unloader port to maintain optimal pressure regulation within the air brake system.

System performance and selection

Consult your authorized distributor to verify exact fitment based on your specific engine configuration and existing pneumatic layout.

OE cross-reference

1300 240 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21521357.