Product Description 
This 3900KV brushless motor and 120A ESC combo is designed for 1/10 scale RC cars and trucks. It delivers high torque, smooth throttle response, and precise control. Upgrade your RC vehicle today with this high-performance, durable motor and ESC combo, and enjoy smooth, responsive, and powerful driving!
 
Note:
1. Please use with 2S LiPo or equivalent batteries only — high-discharge or 3S batteries may exceed the motor/ESC specifications and cause overheating.
2. Always check that your battery C-rating and Gear ratio load matches the motor KV to ensure safe and reliable operation.

Product Feature

  • 💖 Wide Compatibility: Perfect for 1/8, 1/10, and 1/12 scale RC cars and trucks. (The programming card is not included)
  • 💖 Battery & Voltage Guidelines: Designed for 2S LiPo or equivalent NiMH/NiCd batteries. Not recommended for 3S or high-discharge batteries above 3000KV motor.

  • 💖 Durable & Reliable: Dual-ball bearings, copper windings, and precision-balanced rotor for smooth operation and long lifespan.
  • 💖 Easy Setup: Connect BEC to receiver, motor wires to ESC, and then battery. Step-by-step instructions included.

Note

  • 🔔🔔 1. Designed for 2S LiPo batteries. High-discharge or 3S batteries may overload the motor and ESC — for such batteries, use a motor below 3000KV.
  • 🔔🔔 2. Always check your battery C-rating and gear ratio to prevent overheating.
 
How To Use
  • 👉 1. Connect BEC wires with the receiver.
  • 👉 2. Connect motor wires with ESC.
  • 👉 3. Turn on the transmitter.
  • 👉 4. Connect battery pack (not included) with ESC then switch on the ESC.
  • 👉 5.When the connection of motor and battery is finished, the motor emits "Beep-Beep" tone.
  • 👉 6. When the throttle stick is in the neutral position, the motor re-emits "Beep-Beep" tone.
  • 👉 7. The ESC is workable.

Product Specification

 

✨3650 3900KV Brushless Motor

Watts
900W
Max voltage
<13V
Max Amps
69A
KV(RPM/Volt)
3900K
Max RPM
50000
Diameter
36mm
Length
50mm
Shaft length
15mm
Outer Shaft diameter
3.175mm
Inner Shaft diameter
5.00mm
Plug type4mm golden banana plug
Weight175g

✨120A ESC

Continue current
120A
Burst current
320A
Battery
2S Li-Po / 4-9S Ni-Mh Ni-Cd
BEC output
5.8V / 3A
Type
Brushless
Power supply plug
T plug male
Multiple protection features
Low voltage cut-off protection, over-heat protection, throttle signal loss protection
Weight
79g

Package Included

  • 💟1 x Brushless motor
  • 💟1 x Brushless ESC

Location Descriptions

To improve your buying experience and ensure fast delivery, Your order will be shipped from the warehouse located in either new jersey or california that is closest to your address. If you have any questions, Please contact us. Thank you for your support !

On Dec 8, 2025 at 04:38:45 PST, seller added the following information:

 


On Dec 8, 2025 at 23:14:51 PST, seller added the following information: