3650 3900kv Brushless Motor +120a Esc Combo Set For 1/10 1/8 Rc Car

 

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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.
• 💖 High-Performance Brushless Motor: 3900KV 4-pole 12-slot motor with high torque, smooth throttle response, and maximum efficiency.
• 💖 Powerful 120A ESC: Includes low voltage cut-off, over-heat protection, and throttle signal loss protection for safe operation.
• 💖 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 type 4mm golden banana plug Weight 175g

✨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 ! 　 　

　

　  

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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: