85000329 Volvo NH12 D12C 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 compressed air for heavy commercial vehicle operations. Designed for durability, it utilizes high-strength components to withstand the intense thermal and mechanical stresses encountered in heavy-duty service environments.

Compatibility with Volvo NH12

This specific unit is compatible with Volvo NH12 trucks, including models such as the NH 12/340, NH 12/380, NH 12/420, and NH 12/460 featuring the D12C engine. It is an ideal replacement for original equipment components in these heavy commercial vehicle applications.

Installation and maintenance guidance

For proper installation, technicians should verify all port connections, specifically the Ø35 air inlet and M26x1.5 outlet. This water-cooled model requires careful inspection of the M16x1.5 water inlet and outlet ports to ensure efficient thermal management during operation. The integrated ESS feature and water-cooled valve plate enhance long-term reliability.

Troubleshooting air supply

Regular monitoring of the air unloader port and cooling system integrity is recommended to prevent system pressure fluctuations. Maintaining clean air intake helps ensure the longevity of the internal cylinders.

OE cross-reference

1300 010 001 (Twin Cylinder Compressor) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 85000329.