20478151 Volvo NH12 D12C Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor plays a critical role in the pneumatic braking system of heavy commercial vehicles. By utilizing a high-performance two-cylinder design, it ensures consistent air pressure generation required for safe braking operations. The unit is constructed with high-strength components to withstand demanding duty cycles in heavy-duty environments.

Vehicle and engine compatibility

This specific model is engineered for Volvo NH12 trucks equipped with D12C engines. It is designed to meet the rigorous requirements of the vehicle's air system, ensuring seamless integration and reliable performance during long-haul operations. Check the compatibility list.

Technical specifications and installation

Technical specifications include a Ø85.00 mm cylinder bore and a 62 mm stroke, providing a swept volume of 704cm³. The unit features an M26x1,5 air outlet port and M16x1,5 ports for water inlet and outlet, facilitating efficient water cooling. Maintenance technicians should regularly inspect the water cooling lines and port connections to ensure optimal thermal management.

Maintenance and troubleshooting

When replacing this component, verify that the through drive and unloader port (M16x1,5) match the existing installation to prevent system leaks or pressure fluctuations.

OE cross-reference

1300 180 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20478151.