O.S. Engine OMA-38 OS74004004 Security Ring  [OS74004004]

Retention Ring for OMA-38

This RC-scale security ring is tailored for the OMA-38 motor family and acts as a retention device to help maintain the motor assembly position inside its mount or housing during setup and adjustments. It supports stable motor mounting for consistent performance.

The part is intended for OMA-38 motors and related assemblies where a matched security ring is called out. Confirm the OMA-38 mark on your motor before fitting to guarantee compatibility and correct operation.

Installation notes: the ring is placed on the motor assembly as part of the final mounting sequence to limit axial movement of rotating parts. Check seating after the first runs and after any disassembly as part of routine maintenance and tuning of the powertrain.