Parts/Electric power/Brushless motors/Spektrum RC Firma 2838 Sensorless Brushless Motor (4500kv)
Spektrum RC Firma 2838 Sensorless Brushless Motor (4500kv)
Spektrum RC

Spektrum RC Firma 2838 Sensorless Brushless Motor (4500kv)

Part # SPMXSM4400
Where to buy
$62.99
AMain Hobbies
Seen Oct 12, 2026
$62.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Motor Overview:

Spektrum RC Firma 2838 Sensorless Brushless Motor. This replacement Firma 2838 motor is intended for the Arrma Mojave and Typhon Grom platforms, however, it can be a great upgrade for other mini platforms compatible with a 380-size motor in need for more power, speed and performance!

Features:

  • 2-3S LiPo battery Capable
  • Smooth Sensorless performance
  • Balanced torque and speed for all terrain performance
  • Waterproof design for all weather fun
  • low-cog 4-pole rotor design
  • Precision bearings for durability and smooth rotation
  • CNC machined aluminum housing to maximize heat dissipation
  • High-quality alloy steel 3.17mm output shaft

Includes:

  • (1) Firma 2838 4500kV Sensorless Brushless Motor

Specifications:

Type Sensorless Brushless
kV Rating 4500kV
Input Voltage 2-3S (7.4-11.1V)
Diameter 0.9in (23mm)
Length 1.5in (38mm)
Shaft Diameter 0.13in (3mm)
Shaft Length 0.55in (14mm)
Connector 3.5mm Bullet
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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