8112543 Volvo NL12 D12A 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 heavy-duty grade materials, it ensures consistent performance under demanding thermal conditions through its integrated water-cooling mechanism.

Vehicle and engine compatibility

This specific unit is engineered to fit Volvo NL12 trucks equipped with D12A engines. It functions as a high-performance replacement for original components, maintaining the required air delivery for the vehicle's braking and pneumatic systems.

Technical specifications and installation

The assembly features a water-cooled valve plate and an ESS feature for optimized operation. Technical specifications include an air inlet port of Ø29, an air outlet port of M26x1,5, and a swept volume of 608cm³. Maintenance technicians should verify all port connections, including the M22x1,5 unloader port and water inlet/outlet ports (M16x1,5), during installation.

Maintenance and troubleshooting

Regular inspection of the water-cooled components and connection seals is recommended to prevent pressure drops in the air brake system.

OE cross-reference

1300 050 004 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 8112543.