85000064 Twin Cylinder Compressor for Volvo NH12

What does a twin cylinder compressor do?

This twin cylinder compressor is a critical component for the pneumatic air brake system, providing the necessary air pressure for braking and suspension functions. Engineered with heavy-duty grade materials, it ensures consistent performance under high-pressure operating conditions. The unit features a water-cooled valve plate and is designed to handle the intense thermal demands of heavy commercial vehicle engines.

Vehicle and engine compatibility

This specific model is compatible with Volvo NH12 (NH 12/420) vehicles equipped with D12A engines. It serves as a high-quality replacement for OE-standard components, maintaining the integrity of the vehicle's pneumatic circuit.

Installation and maintenance guidance

Technicians should verify that the water inlet and outlet ports (M16x1.5) are properly connected to the cooling circuit to prevent overheating. During installation, ensure the M26x1.5 air outlet port and M22x1.5 unloader port are seated correctly to prevent pressure leaks. Regular inspection of the through drive mechanism is recommended to maintain system efficiency.

Troubleshooting and selection

For optimal performance, check the air inlet port (Ø29) for debris and ensure the water cooling flow remains unobstructed. Consult your authorized distributor.

OE cross-reference

1300 050 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000064.