EMAX ECO 1404 3700KV Brushless Motor

The EMAX ECO 1404 3700KV brushless motor is designed for sub-250g micro builds. Aimed at 3-inch and 4-inch ultralight toothpicks or micro long-range cruisers running 3S to 4S power, this motor delivers reliable mid-range torque while keeping current draw low for extended flight times.

Key features

• Optimised for 3-inch to 4-inch ultralight frames and micro long-range builds

• Efficient 9N12P configuration for smooth throttle response

• Standard 1.5mm T-mount shaft accepts a wide variety of micro propellers

• Lightweight design at just 8.6g to keep sub-250g builds strictly under weight

Specifications

• KV: 3700

• Stator Dimensions: 14x4mm

• Configuration: 9N12P

• Input Voltage: 3-4S LiPo

• Shaft Diameter: 1.5mm (T-mount)

• Mounting Pattern: 9x9mm (M2)

• Motor Dimensions: 18.8x19.75mm

• Weight: 8.6g (excluding wire)

Best paired with 3-inch to 4-inch bi-blade or tri-blade T-mount props on a 3S or 4S LiPo, ensuring an excellent balance of agility and endurance for lightweight frames.