TRAXXAS TRX4 Precision Aluminum Adjustable Servo Horn 20-25mm TRX4025TA by GPM  [TRX4025TA]

TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA
Price:
USD$9.90
Brand:
GPM
Model:
TRX4025TA
GTIN:
4894538299038
Condition:
Brand New
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alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Adjustable Servo Horn (20-25mm) - 7pc set - GPM TRX4025TA"

Technical Summary

Engineered as a durable, model-scale adjustable servo arm for the TRAXXAS TRX4 Trail Crawler, this 6061 T6 aluminum horn is supplied as a 7pcs set. The straight-arm profile and clear adjustment graduations support repeatable steering setups and dependable mechanical performance under trail conditions.

Installation follows standard servo horn replacement steps: remove the original, fit the new arm to the servo spline, and secure with the included stainless fasteners. The 20-25mm hole pattern permits incremental changes to steering leverage and throw without additional fabrication, making chassis tuning faster and cleaner.

Packing includes

  • Servo Arm - 2pcs
  • Stainless Steel Round Head Screw 2.5x10 - 3pcs
  • Stainless Steel Round Head Screw 3x14 - 1pc
  • Stainless Steel Round Head Screw 3x8 - 1pc

What is the intended application for this horn?

This arm is intended as an aftermarket upgrade for TRAXXAS TRX4 Trail Crawler models where a metal horn and adjustable linkage positions are preferred for tuning and durability.

How should I approach geometry changes?

Use the lasered marks to move the linkage incrementally, test steering response, and record positions to refine neutral, throw and endpoint settings without making permanent modifications.

What hardware is included for mounting?

The kit includes a selection of stainless steel round head screws sized to match common TRX4 servo mounting standards, eliminating the need for additional fasteners in most installs.