Sunny Sky V4004 KV300 Brushless Motors


In stock

SKU: 1569811
  1. Stator Diameter: 40mm
  2. Stator Thickness: 4mm
  3. No.of Stator Slots: 18
  4. No.of Rotor Poles: 24
  5. Motor Kv: 300
  6. No-load current: 0.2A/10V
  7. Recommended single take-off Weight: ≤400g


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Category: Drone Motor
Tags: Brushless Motor, Sunny Sky

Sunnysky V series of motors are specially designed to power long-endurance multirotor aircraft. Design styles of the whole series are high efficiency, stable structure, lightweight, high consistency, etc. These flat Sunny Sky V4004 motors are designed for long-flight time multi-rotors. These motors can produce enough torque at low RPM and work at peak efficiency during flight.

The whole series uses Sunnysky’s patented Stepped and knurled design that not only efficiently prevents motors from getting loose, but also reduces the probability of malfunction and unstable output power. The whole series use original Japanese EZO bearings that provide quiet and stable flight in the air.

With the guarantee of strength, the caps of V motors are highly hollow-cutted to save weight, so that these Sunny Sky V4004 motors can reach maximum thrust-to-weight ratio and gain more flight time.

Sunny Sky V2806

V series motors are tested with the strictest procedures of SunnySky QC protocols. Each of these motors is dynamically balanced with our highest standard. The axial and radial runouts of each rotor are tested strictly according to its design. The difference in the performance of each motor is controlled within 3% so that these products can provide precise and stable power for professional applications.

Note: Product Images are shown for illustrative purposes only and may differ from the actual product.


  1. High Performance: The Sunny Sky V4004 KV300 motors deliver outstanding power and efficiency for your RC aircraft or drone.
  2. Precision Engineering: Crafted with meticulous attention to detail, these motors ensure smooth and reliable operation.
  3. Versatile KV Rating: With a KV rating of 300, they suit various flying styles, from agile acrobatics to stable aerial photography.
  4. Durable Build: Built to withstand rigorous flights and environmental conditions, ensuring longevity and reliability.
  5. Easy Installation: The motors come with user-friendly connectors, simplifying the setup process.
  6. Enhanced Cooling: The design incorporates efficient cooling to prevent overheating during demanding flights.

Package Includes:

1 x Sunny Sky V4004 KV300 Brushless Motors

SKU: 1569811 Category: Tags: ,
Stator Diameter


Stator Thickness


No. of Stator Arms


No. of Stator Poles


Motor KV


No-Load Current (A/10V)


Motor Resistance


Max Continuous Current


Max Continuous Power


Motor Weight(gm)


Outside Diameter (OD) mm


Motor Body Length(mm)


Max Lipo Cell


Required ESC (A)


Shipping Weight 0.152 kg
Shipping Dimensions 12 × 9 × 5 cm
1 Year Warranty

This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only. In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China