Futaba BLS151 Servo Gear Set FUEBS3369 Replacement for AS4162 EBS3369  [FUEBS3369]

BLS151 Gear Service Kit

This gear set is a replacement accessory intended for the Futaba BLS151 servo family, supplied under the part codes AS4162 and EBS3369. It serves to restore worn gears or prepare a servo for fine tuning in RC models and is not intended for full-scale vehicle use.

Fit this set when internal plastic or metal gears show play, stripped teeth, or uneven movement. The labelling corresponds to the service parts referenced for the BLS151 series, so confirm your servo model and service codes before buying. Always power off and disconnect the servo from any receiver or power source prior to disassembly.

Installation follows a standard gear-swap process: open the servo case, document gear stack order and bearing positions, replace damaged gears with matching codes, and reassemble while checking mesh and endplay. After reassembly perform a neutral-centre check and a controlled bench range test to ensure smooth operation before reinstalling the servo in your model.

Using fresh gears restores mechanical alignment and reduces backlash, which improves repeatability and helps maintain consistent steering, throttle, or control surface response during setup and tuning sessions.