For Futuba use 25T servo horn (suitable for TRX-4)

The Samix 25T servo horn for TRX-4 is a high-quality aluminum servo horn designed for direct fit on TRX-4 models. Available in 4 different colors with an etched SAMIX logo, this servo horn comes with all necessary hardware included for easy installation. It is compatible with both 23T and 25T servos from popular brands such as Futaba, KO, Sanwa, and Savox. The double clamping style head ensures secure mounting in high-stress applications, making it a reliable choice for serious off-road enthusiasts. Upgrade your TRX-4's steering performance with the Samix 25T servo horn.