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Firma 3900Kv 4-pole Brushless Motor
M-SPMXSM3300
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SRP: £64.99
SMAP:
Trade: Barcode:
0605482767832
0605482767832
Overview
Great choice for 1/10 Scale 4WD models looking for a high RPM motor upgrade running up to 3S * (12.6v) power. Low cog 4-pole rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 5mm output shaft, and high-precision bearings for high durability and smooth rotation. Preinstalled with 4mm gold plated bullet connectors for easy installation. Perfectly matched for the Firma 130 Smart ESC.
*Will work with the 85A Firma ESC, but only for 2S power.
Features
- Perfect upgrade for brushed 540- and 550-size brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 5mm bore)
- High-quality 4-pole sintered rotors
- Includes 4mm gold plated bullet connectors
- Precision ball bearings and hardened steel 5mm shaft
- SafeD-5 Pinion compatible
Support
Related Items
Optional Parts
Used In
Optional Parts
| Image | Item Id | Name | Trade | SRP | Order Now |
|---|---|---|---|---|---|
 | M-SPMXSM2900 | Firma 3800Kv 4-Pole BL Motor | £69.99 | ||
 | P-SPMXSE1130 | Firma 130A Brushless Smart ESC, 2S-4S | £159.99 | ||
 | P-SPMXSEF1 | Firma Smart 130A ESC Replacement Cooling Fan | £12.99 |
Used In
© 2026 Logic RC Limited, 12-18 Hartham Lane, Hertford, SG14 1QN, United Kingdom Tel:+44(0)1992 558226 