21521355 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 operations. Engineered with high-strength components, this water-cooled unit is designed to withstand rigorous thermal cycles and maintain consistent performance under heavy-duty service conditions.

Vehicle and engine compatibility

This specific model is compatible with Volvo FM11 trucks equipped with D11B engines. It is designed to meet the exact requirements of the vehicle's air system, ensuring seamless integration during replacement to maintain optimal pneumatic pressure across the entire braking circuit.

Installation and technical specifications

For professional installation, technicians should verify the water inlet and outlet port specifications (M16x1.5) and ensure the through-drive mechanism is correctly aligned. The unit features a water-cooled valve plate and includes an ESS feature to enhance system reliability during long-haul operations.

System maintenance and selection

Consult your authorized distributor to check the compatibility list.

OE cross-reference

1300 240 003 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21521355.