Futaba FUEBS3372 BLS153/BLS651 Replacement Internal Gear Set  [FUEBS3372]

Service replacement gears for BLS153 & BLS651

This gear set is presented as a direct replacement option for Futaba BLS153 and BLS651 servo models, aimed at hobbyists conducting maintenance or repairs. Fit this kit to address wear-related play or damaged teeth within the gear train.

Typical replacement steps: remove the servo horn, open the case, note the arrangement of the gears, swap in the replacement components and refit. Use the correct screwdriver for the case screws and keep washers and spacers in their original positions to maintain gear mesh and neutral alignment. Photographing the gear stack before removal is recommended if you are not experienced with servo internals.

As a maintenance component rather than an upgrade, exchanging worn gears restores mechanical consistency and repeatability in steering and control surfaces. After refit, inspect end-to-end travel and adjust the horn if required to regain accurate neutral position.