TRX4 Diff-Lock Servo Horn 6061-T6 TRX4025TSN/3 by GPM  [TRX4025TSN/3]

Aftermarket aluminium horn for TRX4 diff-lock servos

This aftermarket servo horn suits TRAXXAS TRX4 lock-differential servo locations and compatible TRX6 variants, referenced TRX4025TSN/3. Built from 6061-T6 aluminium, the horn includes a built-in spring to absorb abrupt shocks and reduce force transmitted to the servo during tough trail or rock sections.

Mounting guidance: the set includes stainless round head screws and aluminium collars; fit the supplied 3mm metal washer beneath each round head screw to remove any excess gap between the screw head and collar. This reduces slop and secures the connection between servo output and diff-lock linkage for consistent operation.

If you run a TRX4 with a locking differential, this 6061-T6 aluminium horn with a spring offers a direct-fit aftermarket upgrade to reduce servo shock; follow the washer placement tip for best results.