20701801 Compatible Twin Cylinder Compressor for Volvo NH12

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component in the air brake system of heavy commercial vehicles, providing the necessary compressed air through two piston-cylinder assemblies. Engineered for high performance, this unit utilizes a water-cooling system to maintain optimal operating temperatures during continuous service.

Vehicle and engine compatibility

This specific model is designed to fit Volvo NH12 series trucks, including the NH 12/340, NH 12/380, NH 12/420, and NH 12/460 variants. It is an essential replacement part for maintaining the pneumatic integrity of the braking and suspension systems in these heavy-duty vehicles.

Technical specifications and installation

Technical specifications include a cylinder bore of Ø85.00 mm, a stroke of 62 mm, and a swept volume of 704cm³. The unit features M26x1.5 air outlet ports and M16x1.5 water inlet/outlet ports, ensuring precise integration with existing vehicle plumbing. The ESS feature and water-cooled valve plate are integrated to enhance durability under heavy loads.

Maintenance and troubleshooting

To ensure proper function, technicians should verify the mounting interface and port alignments during installation. Regular inspection of the water cooling lines and air unloader port (M12x1) is recommended to prevent system pressure drops or overheating.

OE cross-reference

1300 010 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20701801.