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3650 3930KV 4P Sensorless Brushless Motor for 1/10 RC Racing Car Off-Road Truck

18 reviews
100% of buyers enjoyed this product! 52 orders
US $37.60
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This 3650 3930KV 4P Brushless Motor is built from the best materials available, and is designed to provide both quality and performance at an affordable price. And it’s with high quality aluminum alloy parts that are produced on the latest CNC milling machines. The 3650 3930KV 4P brushless will provide more power and longer run times with its high efficiency.

4 poles 12 slot Hi-torque motor design.
CNC machined 6061 T6 billet alumium heatsink can.
High purity copper windings maximizes efficiency.
High RPM ABEC5 oversized bearings.
Universal fit all 1/10 brushless cars-multi-mounting system for M3 screws.
Precision balanced rotor, smoothness for best reliability and maximum RPM.
Stator – Super Thin (0.35mm) laminations.
Precision engineered for maximum energy conversion.

RPM: 3930KV
Max Current: 60A
Max Watts: 820W
Can Size: 3650
Sensored: No
Can Diameter: 36mm
Can Length: 50mm
Shaft Diameter: 3.175mm
Shaft Length: 15mm
Weight: 147.8g/5.2oz
Max voltage: 7.4V(2S)-11.1V(3S)
Package size: 10 * 8 * 6.3cm/ 3.9 * 3.1 * 2.5in
Package weight: 178g/6.3oz

Note: there’s some little error from human measuring.

Package list:
1 * 3650 3930KV 4P Brushless Motor


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of ElectricRCToys (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

18 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
16 Mar 2017 13:15

All ok

verifed buyer
16 Mar 2017 01:14

very good

verifed buyer
8 Mar 2017 12:14

100% perfect.

verifed buyer
17 Feb 2017 18:57

great trader. thanks

verifed buyer
16 Feb 2017 00:11

Item came quite fast from China to Germany. Item is 100% as described - everything fine

verifed buyer
7 Feb 2017 12:13

the goods consistent with the description, I recommend towar zgodny z opisem, polecam

verifed buyer
25 Jan 2017 04:12

Very good. Fast shipping and high quality product. very satisfied.

verifed buyer
23 Jan 2017 08:12

Fast shipping like a rocket, Gorgeous quality, thank you store!

verifed buyer
21 Jan 2017 16:13

I'm very satisfied

verifed buyer
17 Jan 2017 16:12

Good packaging. came 45 days. not yet tested.

verifed buyer
16 Dec 2016 05:49

Great product, works fine.

verifed buyer
13 Dec 2016 16:11


verifed buyer
8 Dec 2016 08:11

shipping fast and good product , very satisfied

verifed buyer
6 Dec 2016 00:10

Super Thanks...

verifed buyer
24 Nov 2016 16:10

Motor, box is dented the motor is undamaged. Gear (not included) perfect. Motor plug 4mm. stekkerbusjes zitter didn't.

verifed buyer
20 Nov 2016 00:57

Goooood was in 7 days in

verifed buyer
15 Nov 2016 00:18

Accuracy of the description of the product Contacting the store quick delivery 14 days

verifed buyer
28 Oct 2016 17:17

Very fast delivery, the track is monitored. sposibo prodovtsu. motor works. all that I can not yet say.

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