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

Lock-diff servo horn for TRX4 crawlers

This aftermarket servo horn is designed for TRAXXAS TRX4 lock-differential servo locations and compatible TRX6 variants, supplied as TRX4025TSN/3. Machined from 6061-T6 aluminium, the horn includes a built-in spring to absorb sudden impacts and reduce load peaks on the servo during trail use.

Installation notes: the kit contains stainless round head screws and aluminium collars; fit each supplied 3mm metal washer under the round head screw to eliminate excess gap between screw head and collar. This simple washer step reduces slop and secures the linkage between the servo output and the diff-lock mechanism for reliable service in crawling setups.

For TRX4 owners who want a lighter, impact-tolerant replacement in the diff-lock servo area, this 6061-T6 aluminium horn with integrated spring offers a direct-fit aftermarket option; follow the washer placement advice to ensure firm engagement.