S3401/S9404 First Gear Replacement - Futaba FU1K09301  [FU1K09301]

FUTABA S3401 S9404 SERVO FIRST GEAR 1K09301 (W/O PACKING)
Price:
NZD$5.11
Brand:
Futaba
Model:
FU1K09301
Condition:
Brand New
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Service spare: FU1K09301 first gear

This Futaba FU1K09301 first gear serves as a straightforward spare for use with Futaba S3401 and S9404 servos. It is supplied without retail packaging and sold as a single replacement component for model-scale applications.

To fit, open the servo case, remove the damaged first gear, then install the replacement while monitoring mesh and bearing alignment. Keep small parts organised to preserve the original arrangement inside the servo.

Replacing a worn first gear can bring back crisp centring and predictable steering response, making it a practical part for regular servicing and pre-event checks.

What is the best way to access the first gear for replacement?

Start by removing the servo horn and external screws, then lift the case halves carefully. Note component positions as you remove them so you can restore the original geometry when refitting FU1K09301.

Will this arrive boxed or loose?

The gear is supplied loose without retail packaging, intended as a spare part only.

Any reassembly pointers to ensure correct mesh?

When refitting, set the gear mesh so the teeth engage smoothly with minimal backlash, then rotate the output spline to check free movement before securing screws.

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