Futaba S3117 S3157 Replacement Servo Case - FUAS3273  [FUAS3273]

Futaba FUAS3273 Replacement Case Overview

This Futaba FUAS3273 servo case set replaces the external housing of compatible Futaba servos S3117 and S3157 and carries the product codes AS3273 and EBS3357 in the original naming. The part is supplied without retail packing and is intended as a direct replacement housing component for hobby-scale RC servos.

The case provides the outer shell and mounting points that secure the servo electronics and internal gear train. During a rebuild the replacement case restores the original footprint so the unit fits the radio tray and horn positions used in standard installations.

For experienced hobby technicians installation is straightforward: remove the servo from the model, disconnect motor leads if needed, open the existing case with the correct hex driver, transfer the electronics and gear stack into the new housing, confirm gear mesh and end stops, then reassemble and bench-test before reinstalling. No specialized tools beyond common servo disassembly tools are required.

Choose this case set when repairing a cracked or deformed shell, revising mounting options, or preparing a servo for bench calibration; it is intended strictly for RC-scale hobby use and not for full-size vehicle use.