Futaba FUEBS3439 S3173SVi Replacement Servo Case Set  [FUEBS3439]

Replacement case for S3173SVi servos

This Futaba FUEBS3439 servo case set is an RC accessory built to enclose and protect the internal components of the S3173SVi servo. It restores structural support after impact or wear and keeps internal parts aligned during operation.

Installation is straightforward for hobby technicians: remove the servo from its mount, follow the manufacturer's disassembly steps, transfer the internal geartrain and electronics into the replacement case, and reassemble while checking for smooth gear engagement and correct horn alignment. Use the original fasteners where possible and verify travel and centring before final fitment.

In maintenance workflows the case enables quick swap-outs of damaged housings, improves repeatability when setting servo position, and provides a stable shell that helps preserve calibration during track or field work.