Futaba S9351/S9155 Upper & Bottom Servo Case Set - FUBS3285  [FUBS3285]

Replacement Upper and Lower Servo Shells

This Futaba FUBS3285 upper and bottom servo case set is a direct-form replacement designed specifically for Futaba S9351 and S9155 servos. These shells serve as external housings only and do not alter the internal electronics or gear stack geometry.

Compatibility is limited to the listed models S9351 and S9155; do not assume fit with other Futaba or third-party servos without checking dimensions and mount points. The set is intended to protect internal components, maintain alignment, and allow straightforward swap-out during routine servicing.

Basic installation notes: remove the original case with the correct drivers, transfer the PCB, gears, and output shaft into the replacement shells, confirm gear mesh and end-play before final torque, and verify travel with your transmitter or a servo tester. Follow standard servo servicing procedures to ensure safe reassembly.