Cobra C-4120/14 Brushless Motor, Kv=710


Great replacement for a 46 nitro engine.


Cobra Brushless Motors offer performance and value for Sport Flyers and Competition pilots alike. They are built from high quality components, and are designed to give years of top-level performance. All Cobra Motors are shipped in a custom designed package that features protective foam on all six sides of the box, with 3 separate compartments to protect the motor, accessory pack and cross mount.

The Cobra 4120 series motors have a 6.0mm shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life.

For maximum performance, an APC 10x7E prop with a 6S LiPo. This would give you 103oz of thrust, 1043 watts and only draw 47 amps!


Every Cobra 4120 Series Motor has a complete accessory package containing the following:

  • Heavy Duty 3mm Thick Cross Style Motor Mount
  • Four M4x8mm Motor Mount Screws
  • Bolt-On style threaded prop adapter with 8mm shaft and M8x1.0mm thread
  • 3 Prop Adapter retaining screws
  • Retaining Collar with Set Screw
  • Three female 4.0mm bullet connectors
  • Three pieces of heat-shrink tubing


  • Maximum Continuous Current – 68 Amps
  • Motor Weight – 930 grams (10.34 oz.)
  • Outside Diameter – 49.8 mm (1.961 in.)
  • Shaft Diameter – 6.00 mm (0.236 in.)
  • Motor Body Length – 51.8 mm (2.039 in.)
  • Overall Shaft Length – 74.5 mm (2.933 in.)

Additional information

Weight 0.8 lbs
Dimensions 5 × 3 × 2 in
Product Brand

Cobra Brushless Motors