21379906 SP1 Volvo VNL D13 Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. By utilizing a water-cooling design, the unit ensures stable thermal management during continuous operation, which is essential for maintaining consistent air pressure delivery for braking and suspension functions.

Compatibility with Volvo VNL D13

This specific model is engineered for Volvo VNL trucks equipped with D13 engines. It features a cylinder bore of Ø85.00 mm, a stroke of 62 mm, and a total swept volume of 704cm³. The unit is designed with an M26x1,5 air outlet port and an M16x1,5 unloader port to ensure precise pneumatic control.

Technical specifications and installation

For maintenance technicians, it is vital to verify the cooling requirements and port configurations before installation. This unit includes an ESS feature and a water-cooled valve plate to enhance durability under high-pressure conditions. Always ensure the drive gear and mounting flange match the existing engine configuration to prevent system mismatch.

Maintenance and troubleshooting

When replacing this unit, check the air inlet port size of Ø35 and the water inlet/outlet ports to ensure they align with the current vehicle setup. Proper installation ensures the longevity of the entire air brake circuit.

OE cross-reference

1300 190 006 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21379906SP1.