Servo Arm Metal Double Side 4" Hitec
In Stock
The MPI 4" Double HD 4-40 Aluminum Servo Arm by Maxx Products provides rigid, flex-free actuation for your high-torque Hitec servos. Perfect for giant scale RC aircraft, pull-pull rudder setups, and heavy-duty steering linkages, this anodized aluminum servo horn delivers ultimate reliability.
Upgrade your control surface responsiveness with the MPI 4" Double HD 4-40 Aluminum Servo Arm. Crafted from high-grade anodized aluminum, this heavy-duty servo horn eliminates the flex commonly found in standard plastic arms, ensuring crisp and precise control inputs under heavy loads. Designed explicitly for Hitec servos, it features pre-tapped 4-40 thread holes for seamless integration with standard heavy-duty pushrod and ball link hardware. Whether building a giant scale aerobatic plane or a high-performance RC vehicle, Maxx Products provides the structural integrity required for extreme performance.
Which servos are compatible with the MPI 4" Double HD 4-40 Aluminum Servo Arm?
The MPI 4" Double HD 4-40 Aluminum Servo Arm is specifically designed to fit Hitec brand servos featuring standard Hitec splines.
What thread size does the MPI 4" Double HD 4-40 Aluminum Servo Arm use for ball links?
This servo arm features pre-tapped 4-40 threaded holes, making it compatible with standard 4-40 heavy-duty pushrods and linkage hardware.
What RC applications are best suited for the MPI 4" Double HD 4-40 Aluminum Servo Arm?
The MPI 4" Double HD 4-40 Aluminum Servo Arm is ideal for giant scale RC airplanes, pull-pull rudder setups, and large-scale RC steering applications requiring high-torque handling without flex.







































