7400 900 003 Mercedes-Benz and MAN Compressor Connecting Rod Bearing

What does a compressor connecting rod bearing do?

This compressor connecting rod bearing is a vital component within the internal mechanism of a heavy commercial vehicle's air brake compressor. It manages the rotating motion between the connecting rod and the crankshaft, effectively absorbing friction and load to maintain stable, vibration-free operation during the compression stroke.

Vehicle compatibility and application

The component is specifically designed to fit Mercedes-Benz and MAN applications. It functions within the compressor's crankcase to ensure that the crankshaft rotation is transferred accurately to the piston, maintaining consistent air pressure for the braking system.

Maintenance and installation guidance

For optimal performance, technicians should inspect these bearings during regular compressor maintenance. Replacing worn bearing elements can prevent irregular pressure generation and increased mechanical clearance within the pneumatic system. When performing a rebuild, it is often recommended to inspect the piston and ring sets simultaneously.

System performance and troubleshooting

Maintaining precise mechanical clearances in the compressor assembly helps ensure long-term reliability of the vehicle's air supply system. Consult your authorized distributor for more information.

OE cross-reference

7400 900 003 (Compressor Connecting Rod Bearing) is the equivalent of the MAN and Mercedes-Benz OE numbers. This part directly replaces MAN OE number 51541216001. It also replaces Mercedes-Benz OE number 4031310233.