Futaba FUAS4145 Servo Case Set for S9172SV S9551 S9570SV S9571SV replacement shells  [FUAS4145]

Servo Case Set Overview

This Futaba FUAS4145 servo case set supplies replacement shells intended specifically for RC-scale servos bearing the model codes S9172SV, S9551, S9570SV, and S9571SV. The set is an accessory for routine maintenance, on-bench repairs, and when swapping damaged housings during field work.

The cases are presented as direct-fit shells for the listed Futaba models, so installers can reuse internal gears, motors, and electronics without modifying the servo internals. When servicing a servo, removing the original case and transferring internal components into the replacement shell preserves calibration while restoring mechanical protection.

For tuning and setup, new casings help maintain consistent alignment of servo output shafts and mounting flanges, which supports repeatable steering or control responses in model applications. This set is described as an RC-scale accessory and is not intended for any full-size vehicle use.