Description
The Spektrum Firma 3660 is a 3200Kv four-pole sensorless brushless motor built for 1/10-scale surface vehicles. It serves as both a direct replacement for the stock motor in several ARRMA 3S BLX models and a straightforward power upgrade for builds running two to three LiPo cells.
The four-pole rotor design delivers strong low-end torque along with high top-end speed, which suits bashing, off-road running, and general high-power use where a two-pole motor would run out of pulling power. The 3660 can size with a 5mm output shaft is a common fit for 1/10-scale motor mounts, and the motor terminates in 4mm bullet connectors for a plug-and-play connection to most compatible speed controls. Rated output is 1150W on 3S.
Key specifications: 3200Kv, four poles, sensorless, 2S-3S voltage range, 60mm (2.36 in) length, 36mm (1.41 in) outer diameter, 5mm (0.197 in) shaft diameter, 45mm wire length, 306g weight, 4mm bullet connector type.
ARRMA compatibility includes the Big Rock 3S BLX, Granite 3S BLX, Typhon 3S BLX, Vendetta 3S BLX, and Vorteks 3S BLX. It is a good option across most ARRMA 3S BLX platforms as a replacement for a worn or failed motor, or as an upgrade path for builds moving to higher power. The package includes one Firma 3660 3200Kv four-pole brushless motor.
Shipping & Return
Shipping Costs By Region
Shipping to the Contiguous United States (excludes Alaska and Hawaii)
As an added benefit, customers in the continental United States can also take advantage of our economical Basic Economy shipping option which offers FREE Shipping on orders over $75 is automatically offered at checkout. If your order does not reach the $75 threshold for free shipping, we offer Flat Rate $3.99 Shipping.
NOTE: Free shipping is only available when shipping to an address in the Contiguous United States, this excludes Alaska, Hawaii and Puerto Rico.
Shipping to Alaska, Hawaii, Puerto Rico, Guam, and All International Addresses
Basic Economy Free Shipping is not available to residents of Alaska, Hawaii, Puerto Rico, Guam, and international. Customers in these locations will be charged the actual computed shipping rate at the time of checkout.
Customs Fee for International orders:
- You are also responsible for all customs, duties, taxes and fees that may be charged by your customs.
- We cannot list any amount other than the actual amount paid by you on invoices or customs forms.
Ordering Processing Time
- All orders are shipped within 24hrs. M-Sat.
RETURNS:
- We accept returns within 30 days of purchase.
- Returns must be in it's original condition.
- Buyer is responsible for return fees.
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