Futaba FUAS3078 Servo Case Set for S135 S3501 S3502 S9601  [FUAS3078]

Servo case set overview

This Futaba FUAS3078 servo case set is intended as a direct replacement housing for specified Futaba servo models S135, S3501, S3502 and S9601, sold without original packing. The set focuses on restoring a damaged or worn servo shell without replacing internal gear trains or electronics, keeping the servo’s original mechanical alignment when reassembled.

Fit and compatibility are limited to the models listed above, verify your servo model number before purchase. When swapping housings, preserve the internal gear stack and bearings, note the ribbon and motor lead routing, and avoid stressing soldered connections during transfer.

Installation is straightforward for hobby-level maintenance: remove the case screws, lift the cover carefully to expose gear and motor assemblies, transfer any required parts to the replacement case, then reassemble with original fasteners. Use appropriate small hex driver and precision screwdrivers to avoid stripped threads.

For tuning and chassis setup, replacing a damaged shell helps maintain proper horn alignment and mounting geometry so your steering and throttle responses remain consistent after repair.