Tekin ROC412 HD Element Proof Sensored Brushless Crawler Motor (1800kV) w/5mm Shaft

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Tekin ROC412 HD Element Proof Sensored Brushless Crawler Motor (1800kV)
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Price: $139.99

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Tekin's Element Proof ROC412 HD offers protection from the elements, giving you the confidence and the power you need to tackle the trails without fear of water, mud or snow! Designed for heavier trail or rock racing rigs, the ROC412 HD delivers more torque and more power on demand, in the same trusted kV ratings so you can maintain desired speed and input voltage, while the longer can delivers more torque than a standard size motor.

Using a 4-pole 12-slot motor design based off the award-winning T8 Series motors, the ROC412 HD harnesses the benefits of brushless efficiency and extreme amounts of torque to stay out on the trail longer with more power on tap. And when you combine the ROC412 HD with an RX4 Speed Control, you have one of the smoothest and most capable brushless crawling systems on the market.


  • Element Proof design tackles Water, Mud and Snow*
  • 18.5mm Rotor provides more Torque and Braking Power
  • 5mm High-Strength Pinion Shaft
  • 550 Length Can provides improved heat dissipation
  • 4 Pole 12 Slot Crawler Motor Design
  • CNC Machined 6061 T6 Billet Aluminum Heatsink Can
  • Crawler, Rock Race and Trail Rig Specific
  • Neodymium Sintered Magnets
  • Rebuildable Design
  • High Purity Copper Windings Maximizes Efficiency
  • Precision Engineered for Maximum Energy Conversion
  • Dual-Plug Sensor Wire Harness for use with all sensored and sensorless systems
  • High RPM ABEC5 Oversized Bearings
  • Element Proof ESCs and Motors are specially designed to withstand water splashes and are not meant to be submerged. Included dielectric grease must be used on the sensor and fan port connections to protect them from shorting.
  • The ROC412 HD is not intended for operation while submerged in liquid.
  • Anytime your motor sees water it is important that you perform the proper after run maintenance. Warranty does not cover neglect, lack of maintenance, bearings, rust or any damage that may occur if the motor is submerged in water.
Input Voltage: 3S
Weight: 221g / 7.8oz
Shaft Dimensions: 5mm x 15.3mm / .196" x .60"
Motor Diameter: 36mm / 1.41"
Motor Length: 62.5mm / 2.5"
Bearing Dimensions: Front: 5 x 14 x 5mm / Rear: 5 x 11 x 5mm
Rotor Size: 18.5mm ALL
Rebuildable: Yes

This product was added to our catalog on June 29, 2017

Wednesday, Aug 21 2019 (about 2 years ago)
Tekin ROC412 HD Element Proof Sensored Brushless Crawler Motor (1800kV)
I have this along with the Tekin RX4 ESC in my heavily modified TRX4. Ive added every piece of brass and along with wheel weights, (2 to 3 ounces per wheel) so my truck weighs more than twice what the stock one did so i needed a good strong setup. Ive been running this combo since i got the truck a year ago now with zero issues or complaints. More power than i ever need, maybe 5mph faster than the stock setup in high gear with the 11 tooth pinion and it pulls big wheelies super easy even with all the weight i added. Im building a second crawler soon, trying the SCX10II kit and this setup is really the only combo i would consider. Ive got the Tekin RX8 Gen3/T8 combos in my Tekno SCT410.3 (1900kv 4s), ET48.3 (2200kv Truggy spec) and EB48.4 (2650kv) and being able to setup all of my rigs using just one bluetooth hotwire box makes things easy. Ive always been more than satisfied with anything from Tekin Ive ever had, this motor and RX4 ESC setup included. The only thing that I didnt like as much is that the wire posts on the RX4 are smaller than they are on the RX8 which caused the soldering of the wires to be much more tedious.
Verified Owner
Monday, Nov 29 2021 (7 months ago)
Tekin ROC412 HD Element Proof Sensored Brushless Crawler Motor (1800kV)
I purchased this motor to run on 4s power. Be sure to match correct kv rating to the voltage you plan on running or you will fry your motor. I am happy with the performance it puts out on my rock racer wich is on the heavy side compared to most rtr models.