Emax ECO 1404-3700KV Brushless Motor


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 1444690
  1. Model Emax ECO 1404-3700KV
  2. Framework 9N12P
  3. Length 19.75mm
  4. Diameter 18.8mm
  5. Propeller 2.5″ – 4″
  6. Weight 8.6g (W/O Silic


(Including GST)

Out of stock

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15 Days Warranty
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Brand: Emax
Category: Drone Motor

The engineers at Emax are always seeking ways to design the ultimate motor with brushless technology. In their efforts, they produced the ECO II Series, a new line of brushless motors further improved performance and durability while retaining the same affordability. Redesigned from the ground up, the ECO II boasts an all-new architecture. With a more rounded design paired together with thicker reinforcements, maximum durability is achieved. Finished with a reflective surface, the ECO II offers a sleek modern design destined to satisfy the need for both aesthetics and durability.

In order to improve the performance of its predecessor, the ECO II utilizes N52SH arc magnets over prior N48 magnets, allowing more powerful throttle response and higher RPMs to be achieved. More torque and thrust are generated, allowing pilots the flexibility to comfortably meet the demands of any racetrack or flight situation. The ECO II Series marks the next evolution in affordable brushless motor technology, bringing in a new era of performance for everyone.


  1. Precision bearing
  2. Steel shaft
  3. Anodizing
  4. 19 x 19mm hole pattern
  5. Multi-strand winding

Package Include:

1 x Emax ECO 1404-3700KV Brushless Motor

SKU: 1444690 Category:







2.5" – 4"


8.6g (W/O Silicone Wire)

Prop adapter shaft diameter


Bearing Shaft


Shaft Thread


Shipping Weight 0.019 kg
Shipping Dimensions 8 × 8 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids 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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Questions and answers of the customers

    What is the thrust of this motor
  1. 0 votes
    Q What is the thrust of this motor answer now
    Asked by akula.arun99 on February 23, 2023 8:48 pm
    A Its maximum thrust is 244 at 14.8V and 6.5A
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Country Of Origin: China