O.S. Engine OS74002321 Rotation Sensor Fixing Screw for GT22, GT33  [OS74002321]

Rotation sensor fixing screw

This is an RC-scale replacement fixing screw designed for the rotation sensor assemblies on O.S. Engine GT22 and GT33 models. The part secures the sensor to the engine housing to keep the pickup positioned consistently during operation.

Use this screw when replacing a lost or worn mounting fastener or when reinstalling the rotation sensor after maintenance. Properly seated and tightened, the screw helps maintain steady sensor alignment, which supports consistent ignition timing and dependable engine behaviour in nitro RC applications.

When fitting the screw, ensure the sensor pick-up sits flush against its mounting surface and that the screw threads engage cleanly without cross-threading. Tighten to a firm, secure feel but avoid excessive torque that could strip threads in the sensor bracket or engine case.