INJORA Coreless High Torque Micro Servo with Mount and Servo Horn for TRX4M TRX4MT 1/18 RC Crawler Upgrade Parts(Black)

This servo is a beast!! Butter smooth. Fits perfectly

Durable, strong and fast. The 11kg servo is one of the best upgrades for your rides. It's as simple as plug n play

Works amazingly!!! Super easy plug and play replacement for the steering servo. You may need to adjust end points but the Quality of the servo speaks for itself.I had to take a Dremel to the servo mount to allow room for the horn's screw (nothing bad less than a MM). this shouldn't be an issue for others as I am going for a very lifted truck. This means the servo needs to be leaning towards the front bumper as much as possible, this limits the space between the attached servo horn screw and servo mount.

Servo looks great, black with aluminum cuts. Fit perfectly with the Injora aluminum axles. Much better performance than stock servo in speed, power, and durability, and price. This set comes with the servo, mount, and servo arm, for the price of the OEM servo alone. Semi easy to install (there are no instructions) If you are using the Injora aluminum axels you will need the 2 micro grub screws and a .05 allen key to install, but set servo into the mount first then tighten the grub screws, but not too tight. Not sure how it fit stock plastic axels.

After burning through multiple cheaper plastic servos, I opted to buy this one. It's very powerful and responsive, I wish I had bought it sooner. This one is not technically waterproof but I don't submerge it ever. I've had this thing in some very tight spots and it pushes through.

Works perfectly and a upgrade over stock one that died

Works well with larger tires and weighted wheels. The servo isn’t designed for the TRX4m necessarily because1 it’s a little tall.2 the wiring comes out the front when it should come out the rear.The wiring blocks the screw and caused a cross threaded screw since the wiring is completely in the way. A ball hex will be required to access easily.It’s had an issue with the servo horn screw to the steering link keeps backing out even with threadlock and the thread isn’t stripped. If you work the steering back and forth it will loosen but if you tighten all the way it seems to bind the steering up so something seems to be designed wrong. I didn’t have this issue on my old stock servo even when I had aftermarket brass steering link on that one.

Not sure you can beat this servo for $40. There are stronger servos out there (nsdrc,mofo) but at this price range it's a solid servo. Good torque and speed. This is my 3rd one.