DJX4PCS Aluminum 25T Servo Arm Horns for All 1:10 2WD/4WD ECX331007 RC Car (Black)

I've been flying r/c planes for 42 years. Giant scale, pylon racers, pattern planes, sailplanes and many others. These 25 tooth servo arms are plenty strong and sit down plenty far enough on the Hitec servo output shafts. In fact, there's the same, minute amount of output shaft showing between the top of the servo case, and bottom of servo arm, when compared to factory hitec arms. Someone on here wrote a review claiming the aluminum arm didn't set very far down onto the output shaft. Th black ones I received fit just as well as the hitec arms. The thing I like about these, is the arm is the same thickness from center to tip, so the ball link, clevis, or whatever you attach, can be secured anywhere between the center and tip of the arm. You can switch your JR or Futaba servos with Hitec, and either of the previous existing arms will bolt right on the 25 tooth hitec servo. Yes, Hitec finally caught on and started offering 25 tooth servos and arms. Hope this helps. Happy flying!

I needed a longer and stronger servo arm for a remote control application. This is perfect!

Purchased and are already replacing two because they would not stay attached to the servo. Tightening more just stripped out the tiny screws.

These were powder coated after they were machined so it’s in the splines making it very difficult to press onto the servo gear. I’ve been using an allen head screw and drawing them down. If you are not using a high quality metal gear servo you will destroy your servo trying to get these on!

Good product

This product was built extremely well! Super easy to install and work perfectly. I’m very happy with his product. The servo horns are great.

Works fine!

Use it on my nitro rc truck and works perfectly

Depth of splines too short. Arm is too flexible. Wouldn’t trust these on anything.