Yokomo YOKSD204 - Servo Horn Set for MR-4TCSD  [YOKSD204]

Servo horn set for MR-4TCSD

This Yokomo YOKSD204 servo horn set is an RC-scale replacement part intended for MR-4TCSD chassis use, serving as the direct interface between the servo spline and the steering linkage. The article focuses on compatibility, installation practice, and how the parts influence steering response rather than manufacturing claims.

Compatibility is centered on MR-4TCSD-designated setups; before fitting, confirm your servo spline count and horn mounting pattern match the replacement arm. This set is intended to be used as a direct swap where the MR-4TCSD specification is stated, and it supports the standard steering-link geometry typical of 1/10 touring car platforms.

Installation notes: remove horn retaining hardware and match spline alignment at neutral steering, fit the horn to the servo spline so the horn points straight ahead, and then secure using the original screw or clip supplied with your servo. After mounting, verify that the linkage position and steering endpoints are set with your transmitter trims and travel adjustments to avoid binding.

Tuning role: the servo horn changes the mechanical leverage between servo output and steering linkage, so swapping horn length or arm position affects steering sensitivity and throw. Use small adjustments to horn position to fine-tune initial turn-in and mid-corner steering, then re-check endpoint settings to keep geometry consistent.