7600 920 004 Compatible Compressor Gear

What does a compressor gear do?

This compressor gear acts as the primary drive component that allows the air brake compressor to receive rotation from the engine. Often referred to in workshop practice as the crankshaft-end gear, it mounts securely onto the compressor crankshaft end or drive flange. By meshing with the engine's timing gear train, it facilitates the necessary transfer of rotary motion to the piston assembly within the air brake system.

Vehicle and engine compatibility

This component is specifically designed for use in Mercedes-Benz AROC S models and Setra Series 400 and 500 series vehicles. It is also compatible with OM 470 LA engines. When internal wear is detected in the timing assembly, renewing this specific gear is often a sufficient solution to restore system integrity without replacing the entire compressor unit.

Installation and maintenance

For workshop technicians, inspecting the teeth of the gear for uneven wear is a vital part of pneumatic system maintenance. Ensuring proper alignment during installation is critical to prevent premature failure of the crankshaft or timing train. This part is compatible with Knorr-Bremse systems as well.

Troubleshooting and replacement

Consult your authorized distributor to ensure correct fitment for your specific engine configuration.

OE cross-reference

7600 920 004 (Compressor Gear) is the equivalent of the Mercedes-Benz OE numbers. This part directly replaces Mercedes-Benz OE numbers 4701320105, 4701320505.