TRAXXAS TRX4 Front Bumper Mount and 25T Aluminum Servo Horn - TRX4331FX25T by GPM  [TRX4331FX25T]

Brass bumper mount with 25T aluminium servo arm kit

This 19 pcs upgrade kit is made for the TRAXXAS TRX4 TRAIL CRAWLER chassis and pairs a brass front bumper mount with a 25T aluminium servo horn to improve mounting stability and steering precision on trail rigs.

The materials are reflected in the title: a brass bumper mount adds weight and a rigid anchor at the nose, while the 25T aluminium horn provides a metal-to-metal interface at the servo spline. The parts are intended to mate with the TRX4 front assembly and the vehicle's existing steering servo where the TRX4 spline and mounting points match.

Fitment and tuning notes: the brass mount gives a firmer base than typical plastics and the aluminium 25T horn reduces flex at the servo output. This combination is suitable when you want extra front-end mass and a precise servo arm profile for steering geometry changes. Always confirm spline count and clearances to prevent binding and ensure full travel.

A direct metal upgrade for TRX4 owners seeking added nose weight and a durable 25T aluminium horn to sharpen steering feel on crawl and trail runs.