TRX4 Trail Servo Arm Aluminium 6061-T6 TRX4025TSN/3 by GPM  [TRX4025TSN/3]

6061-T6 aluminium servo arm for TRX4 diff-locks

This aftermarket aluminium servo horn is intended for TRAXXAS TRX4 lock-differential servo zones and compatible TRX6 models, supplied as TRX4025TSN/3. The part is CNC style machined from 6061-T6 and features a built-in spring that cushions sudden impacts, helping protect the servo during aggressive trail use.

Fitment note: the kit provides stainless round head screws and aluminium collars; place each supplied 3mm metal washer under the round head screw to remove play between the screw head and collar. That small step secures the interface between the servo output and the diff-lock mechanism for dependable engagement.

For trail and rock crawling, this 6061-T6 aluminium horn with spring gives a lightweight, impact-tolerant option for the diff-lock servo area; follow the washer guidance for best engagement and minimal play.