HobbyStar 3650 4-Pole Brushless Sensorless Motor, Waterproof

SKU: 375-08-CNF

Availability: In stock


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HobbyStar 3650 4-pole brushless motor 4-pole provides gobs of torque, and versatile waterproof design allows you to drive in extreme conditions. 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 


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
3650/5T 3100 3S 56A 4 1.4A 0.0126 900W 50,000 50 36 180 3.175 15 4.0mm gold
3650/5T 3500 3S 60A 4 2.6A 0.0121 900W 50,000 50 36 180 3.175 15 4.0mm gold
3650/4T 3900 2S 69A 4 2.0A 0.0081 900W 50,000 50 36 180 3.175 15 4.0mm gold
3650/3.5T 4300 2S 75A 4 2.7A 0.0075 900W 50,000 50 36 180 3.175 15 4.0mm gold
3650/3T 5200 2S 94A 4 3.7A 0.0051 900W 50,000 50 36 180 3.175 15 4.0mm gold


Customer Reviews (2)

Good valueReview by Bill
Ran this in a 2wd monster slash and now it's in a 4x4 stampede. Great motor with good power. Has been through quite a bit of mud and water and still going strong. (Posted on 1/5/2018)
great motorReview by Bill
I bought the 3500KV. This is the first 4-pole motor I have owned and is the first motor I have owned with this high KV, so I can't say I am basing my review on comparison to similar motors. However, compared to the motor I was using before, an EcoPower Sling Shot 17.5T 2200KV, this motor is way more powerful and faster. It has exceeded my expectations, and the price $29.99 seems like a steal. (Posted on 5/2/2017)

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will it plug rite in to my traxxas velineum system
Not sure if the Velineon ESC's have 3.5mm or 4mm bullets, but I believe they are 4mm. These motors have 4mm plugs on them.
RCJuice answered on February 5, 2019
What esc is recommended for the 5200kv motor thanks

The link above is a good pairing for this motor. It's waterproof as well and suited for 2wd 1/10.

Not recommended for 4wd
RCJuice answered on June 9, 2020

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