Futaba FUAS3078 Servo Case Set Compatible with S135 S3501 S3502 S9601  [FUAS3078]

Product description and fit notes

This Futaba FUAS3078 servo case set is offered as a replacement housing for the Futaba S135, S3501, S3502 and S9601 servos and is supplied without original packing. The set replaces the outer casing only and does not contain internal gears or electronics, allowing the servo's original mechanical alignment to be retained after reassembly.

Ensure the model number printed on your servo matches one of the listed models before ordering, as fit is limited to those units. When transferring parts, preserve the internal gear stack and bearings and keep ribbon and motor lead routing identical to the original fitment to avoid damage to soldered joints.

Fitting the new case is a straightforward maintenance task: remove screws, lift the cover to expose the motor and gear train, move the necessary components into the replacement shell and reassemble with the original fixings. Use precision drivers and a small hex to prevent stripped threads.

Renewing a damaged case preserves correct horn alignment and mounting geometry, helping maintain consistent control responses after the repair.