Futaba FUAS3097 EBS3221 Servo Housing Set for S3401 S9404  [FUAS3097]

Outer housing compatible with S3401 and S9404

This Futaba FUAS3097 case set, part number EBS3221, is made for use with Futaba S3401 and S9404 radio servos. It is provided without retail packaging and is intended as a substitute outer shell for routine service or repair tasks on model servos.

Recommended when the original shell is cracked or scuffed, the kit lets you prepare a spare housing for field replacement. Typical service steps include removing the damaged case, transferring the internal gear train and electronics into the new shell, and reassembling the unit. Note that this listing covers the external case components, not a full servo.

Practical tips: work on a flat, clean surface, keep small components separated, and record gear positions before removing them. Using a spare housing can greatly reduce bench time and let you return servos to service quickly during events.

Tuning note: replacing the shell does not affect servo gearing or control response; it simply restores the outer protection and mounting points so you can continue fine-tuning your model without long delays.