kz4331rm Volvo Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor provides essential compressed air pressure required for the operation of heavy-duty air brake systems. Utilizing a water-cooled design, the unit is specifically engineered to manage thermal loads effectively during continuous operation, ensuring long-term stability within the pneumatic system.

Compatible Volvo vehicles and engines

The component is designed for compatibility with several Volvo models, including the F10, F12, F7, N10, N12, B10M, and B12 series. It is suitable for engines such as the TD70, TD71, TD100, TD101, TD120, TD121, and TD122. This unit ensures precise air delivery for heavy commercial vehicle applications.

Installation and maintenance guidance

When performing installation or maintenance, technicians should verify that the water inlet and outlet ports (M16x1.5) and the air inlet/outlet ports (M26x1.5) align with the existing vehicle configuration. Proper mounting of the through-drive mechanism is critical to ensure efficient engine-driven performance and to prevent vibration-related wear.

Selection and fitment advice

To ensure correct fitment, it is recommended to match the replacement unit against the original equipment's specifications regarding cylinder diameter and cooling requirements. Check the compatibility list to confirm exact fitment for your specific engine variant.

OE cross-reference

kz4331rm (Twin Cylinder Compressor) is the equivalent of the Knorr-Bremse and Volvo OE numbers. This part directly replaces Knorr-Bremse OE numbers 1186722SP, KZ433, KZ433\1RM, KZ433\1X50. It also replaces Volvo OE numbers 1080437, 1186722, 1188844, 1570594, 1590264, 1612335.