Spektrum Firma 3660-4000Kv 4-Pole Sensorless Brushless Motor Overview
The Spektrum® Firma™ 3650 4000Kv Brushless Motor is a great replacement motor for the 1/8 scale INFRACTION® 4X4 3S BLX All-Road RTR running on 2-3S LiPo power. This motor features a 4-pole rotor design, CNC machined aluminum housing, insulated high purity copper windings, and a high-quality alloy steel 5mm output shaft for durability and smooth rotation. The motor also includes preinstalled 4mm gold-plated bullet connectors for easy installation.
Key Specs
Motor Size
3660-4000Kv
Product Weight
300g
Product Length
2.36" (60 mm)
Connector Type
4mm Bullet
Connector Wire Length
1.96" (50 mm)
Motor Type
Brushless
Number of Poles
4
Outer Diameter
1.41" (36 mm)
Specifications
Motor Size
3660-4000Kv
Product Weight
300g
Product Length
2.36" (60 mm)
Connector Type
4mm Bullet
Connector Wire Length
1.96" (50 mm)
Motor Type
Brushless
Number of Poles
4
Outer Diameter
1.41" (36 mm)
RPM/Volt (Kv)
4000Kv
Shaft Diameter
0.19" (5 mm)
Shaft Length
0.87" (22 mm)
Voltage
7.4v - 11.1v
Compatibility
This replacement part is used in the following complete models.