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3.5 out of 5 Customer Rating

Firma 3300Kv Brushless Motor

Item No. SPMXSM1300
Brand Logo
3.5 out of 5 Customer Rating

Firma 3300Kv Brushless Motor

Item No. SPMXSM1300
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Product Details

Key Features
  • 4mm Gold Plated Bullet Connectors
  • Brushless Non-Sensored Design
  • Can be Powered by 2-3S LiPo or 4-9 Cell NiMH Batteries
  • 1/8" (3.175mm) Alloy Steel Output Shaft
In The Box
  • Firma 3300Kv Brushless Motor
Needed to Complete
  • 85A ESC


The Firma 3300Kv brushless motor is a great choice for 1/10 scale 4WD, 2WD and on-road models running on 2S – 3S LiPo power. Featuring a low cog 4-pole 8-magnet rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 3.175mm (1/8") output shaft, and precision bearings for high durability and smooth rotation. Preinstalled with 4mm gold plated bullet connectors for easy installation, and perfectly matched for the Firma 85A Smart ESC.


  • Excellent upgrade for 540- and 550-size brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 1/8" mm bore)
  • High-quality 4-pole sintered rotor
  • 4mm gold plated bullet connectors
  • High-quality construction with precision ball bearings and hardened steel 1/8" shaft

Product Specifications

Application 1/10 scale 4WD, 2WD, and on-road models running 2S – 3S LiPo
Bushing Or Bearing Bearing
Connector Type 4mm Bullet
Efficiency 82%
Input Voltage 6 – 12.6V (2-3S LiPo, 4-9 NiMH)
Maximum Continuous Current 33A
Motor Design Inrunner
Motor Size 3652-3300Kv
Motor Type Brushless - Sensorless
Mounting Dimensions Same as 540 and 550 size brushed motors
Number of Poles 4
Outer Diameter 1.47" (37 mm)
Output 430W (2S)
Product Length 2.04" (52 mm)
Product Weight 7.05oz (200g)
Recommended Speed Control Spektrum Firma 85A Smart ESC
RPM/Volt (Kv) 3300Kv
Shaft Diameter 0.125" (3 mm)