Servo gear replacement pack for Futaba S3171SB S3172SV - FUEBS3387  [FUEBS3387]

FUTABA S3171SB S3172SV SERVO GEAR SET AS4177 EBS3387
Price:
CAD$34.47
Brand:
Futaba
Model:
FUEBS3387
GTIN:
4513886305443
Condition:
Brand New
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Futaba S3171/S3172 gear pack overview

This Futaba FUEBS3387 servo gear set is a dedicated replacement gear pack for RC servos marked S3171SB and S3172SV. It contains the internal gear train components you swap in when worn or damaged gears introduce play, noise, or inconsistent centring.

The text concentrates on fitment checks, easy service steps, and how a correct gear pack helps restore reliable servo response during routine maintenance and tuning. It is not a substitute for official servicing information but gives practical checks to verify correct operation after installation.

Compatibility notes: the product title identifies fitment for Futaba S3171SB and S3172SV servos; confirm the model markings on your servo before replacing internal gears. Inspect splines, the output shaft, and the servo case for debris or damage before reassembly.

Specifications

  • Item Servo gear set
  • Material Manufacturer did not specify
  • Model Number FUEBS3387
  • Compatibility Futaba S3171SB, Futaba S3172SV

Replacing worn gears with the correct Futaba FUEBS3387 pack restores mechanical integrity and helps maintain predictable servo centring and responsiveness in RC models, making it a practical component for ongoing servo maintenance.

How can I be sure this kit fits my servo before I open it?

Check the label or stamping on the servo body for S3171SB or S3172SV. The product listing and specifications list those two designations as compatible; verify markings match before disassembly.

Will swapping these gears reduce play and improve centring?

Yes, replacing worn or damaged gears restores the mechanical mesh and can reduce backlash, which helps centring and repeatability. Final accuracy still depends on the overall servo condition and electronic setup.

Are step-by-step installation instructions provided with the pack?

The kit is a parts pack only. Use standard servo disassembly and reassembly practices and any official guidance for your servo model to ensure correct fit and safe reassembly.

What checks should I run after reassembling the servo?

Power the servo through its usual controller, confirm smooth travel across the range, check neutral centring, and listen for unusual noises that could indicate misalignment or debris.

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