Futaba FU1K13201 First Gear Replacement for Futaba S9450 Servo  [FU1K13201]

Genuine First Gear for S9450 Servos

This FU1K13201 is a genuine Futaba first gear designed as a direct replacement for Futaba S9450 servos. It restores internal gearing when the original first gear shows wear or damage.

Confirm the S9450 model designation before ordering. Fitting the part requires opening the servo case, carefully removing the output gear train, and reassembling while maintaining correct gear mesh and bearing alignment. Apply a light, purpose-specific grease to gear teeth and do not over-tighten fasteners to avoid binding.

Replacing a worn first gear can recover smooth centering and consistent speed response, improving steering or actuator feedback in small RC models. After installation, run the servo through its full travel and listen for abnormal noise before returning it to service.