Futaba FUAS4145 Replacement Shells Compatible with S9172SV S9551 S9570SV S9571SV  [FUAS4145]

Overview of the Servo Case Set

The Futaba FUAS4145 case set contains replacement shells specifically for RC-scale servos with model numbers S9172SV, S9551, S9570SV and S9571SV. These shells are supplied for use during maintenance, when repairing a damaged case, or when preparing a servo for tuning work.

Designed to be direct-fit options for the listed Futaba models, the replacement cases allow reuse of the original internal gear trains, motors and electronics without altering the servo internals. Transferring internals into the new housing restores mechanical protection while keeping existing calibration intact in most cases.

New housings assist with consistent alignment of output shafts and mounting flanges during setup, promoting repeatable control inputs in model applications. Note that this product is an accessory for scale models and is not suitable for full-size vehicles.