3987602 SP1 Compressor compatible with Volvo NL12

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a vital component within the pneumatic braking system of heavy commercial vehicles. It functions by converting mechanical energy into compressed air, providing the necessary pressure for reliable braking performance and air system operation. Built with high-strength components, it is engineered to withstand the rigorous thermal and pressure cycles found in heavy-duty environments.

Compatibility with Volvo NL12 engines

This specific unit is designed for Volvo NL12 trucks equipped with D12A engines. It features a water-cooled design to maintain stable operating temperatures, with specific port configurations including an M26x1.5 outlet and M22x1.5 unloader port. The unit utilizes a Ø88.00 mm cylinder bore and a 50 mm stroke to achieve a swept volume of 608cm³.

Installation and maintenance guidance

For successful installation, technicians should verify that all port connections, including the M16x1.5 water inlet and outlet ports, align perfectly with the existing engine configuration. It is essential to ensure that the through-drive and mounting flange match the original equipment specifications to prevent system leaks or mechanical misalignment.

System performance and maintenance

When replacing this unit, always check for proper coolant flow to the valve plate to prevent overheating. Maintaining clean air intake through the Ø29 mm inlet port is critical for extending the service life of the internal components.

OE cross-reference

1300 050 002 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3987602SP1.