Futaba FUSHORN-Y D5mm Servo Horn Y Cross-Arm, 5 pcs  [FUSHORN-Y]

Y cross-arm servo horn for Futaba servos

This Futaba FUSHORN-Y accessory is a Y-shaped servo horn designed for direct replacement or spare use with compatible Futaba servos. The pack contains 5 pcs intended for hobby-scale RC applications, providing ready spares for routine maintenance and track-side swaps.

Compatibility is limited to the listed servo models: S3103, S3107, 3153, 3156, and 3157, and the horn mates to a D5mm spline output. It is manufactured to match the spline engagement for those servos so it installs onto the servo output shaft and uses the servo's existing fastening hardware.

Installation and tuning notes: center the servo before fitting the horn, confirm the arm orientation and control-link geometry, and verify full travel without binding after installation. Swapping to this Y cross-arm helps with control-link alignment and offers a straightforward way to adjust leverage and throw through mechanical geometry rather than electronic endpoints.