HobbyStar 3670 4-Pole Brushless Sensorless Motor, Waterproof

SKU: 375-18-CNF2

Availability: In stock


* Required Fields



 HobbyStar 3670 4-pole brushless motor provides tremendous torque and sustained high-RPM power. 70mm can with recessed fins is also a great fit in boat and EDF applications. Versatile waterproof design allows you to drive in extreme conditions and motor leads come with pre-installed 4.0mm gold-plated bullet plugs for easy, no-soldering connection.



  • 4-pole motor with 12-slot high-torque design
  • High-purity copper windings maximize efficiency
  • High-RPM ABEC5 oversized bearings
  • Precision balanced rotor for smooth operation and maximum RPM
  • Super-thin (0.2mm) stator laminations 

 Voltage recommendations in chart are guidelines for the voltage you can safely run.  It is still critical that the user monitor motor temps and adjust gearing if necessary, any motor can overheat to the point of destruction if over-geared even when running at or below the rated voltage.


Product KV (RPM/Volt) Max Voltage Max Amps Rotor Poles IO Resistance Watts Max RPM Length (mm) Diameter (mm) Weight (g) Shaft Diameter (mm) Shaft Length (mm) Connectors
3670/3Y 1850 6S 66A 4 2.4A 0.0165 1600W 60,000 70 36 275 5.0 17 4.0mm gold
3670/2.5Y 2280 6S 70A 4 2.8A 0.0121 1600W 60,000 70 36 275 5.0 17 4.0mm gold
3670/2Y 3050 5S 89A 4 3.6A 0.0069 1600W 60,000 70 36 275 5.0 17 4.0mm gold


Customer Reviews (1)

Great little motor ! Review by Dave
This thing is a little beast! tons of power and lots of torque, Thanks RC juice for continuing to make this hobby affordable to us common folk ! (Posted on 6/15/2021)

Write Your Own Review

Only registered users can write reviews. Please, log in or register



Use spaces to separate tags. Use single quotes (') for phrases.

Ask Question

Create New Question

Please Sign up or Log in to ask a question
What pinion do I use for it? My stock doe not fit smh 15t
This motor requires a pinion with a 5mm bore.
RCJuice answered on July 12, 2021
does it have 4mm mounting holes
Only 3mm on the 1/10 motors.
RCJuice answered on January 2, 2019

Recommended For You

You may also be interested in the following product(s)