Futaba FU1K17401 Servo Horn Type-N Circle 3pcs for S9150/52/53/54 BLS154 BLS174 (w/o screw)  [FU1K17401]

Type-N circle servo horns, 3pcs

This kit supplies three Futaba-branded Type-N circle servo horns designed for use with Futaba S9150/52/53/54 and BLS154/BLS174 series servos. The part is sold without mounting screws, intended as a spare or tuning accessory for scale RC models that need quick changes to linkage geometry.

Installation is straightforward on splined servo output shafts: align the horn to the servo spline, check neutral alignment, and secure with an appropriate screw from your servo manual or existing hardware. Because screws are not included, use the original mounting hardware or a matching-size screw to avoid damaging the spline or horn.

In tuning terms, a Type-N circle horn alters effective lever length and ball link positions, letting you fine-tune steering sensitivity, throw, and centring without software changes. Keep adjustments small and test increments on the bench before full-range running to confirm travel and avoid binding.