More from Buddy RC →SunnySky X Series V3 X4120 V3 Brushless Motors
$105.99
In stock at buddyrc.com
The SunnySky X4120 V3 is a 41mm-stator brushless motor offered in six KV options from 230 to 650. The 480KV version weighs 292g, runs up to 6S with a 100A ESC and is rated 2425W for 30 seconds. It suits large electric airplanes and lifters wanting a slightly lighter motor than the X4125.
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Highlights
- Six KV choices: 230, 260, 430, 480, 550 and 650
- 41mm stator, 20mm thick, 12 slots, 14 poles
- Up to 6S LiPo
- 480KV: 97A and 2425W for 30 seconds; 550KV: 100A and 2500W
- Thrust tables with EOLO 14 to 16 inch props
Best for
Builders of large electric planes who need a 6S motor in a specific KV.
Things to consider
- Specs are listed only for the 480 and 550KV versions.
- A 100A or larger ESC is recommended.
- A compare-at price below the sale price appears in the data; ignore it.
Key specs
| Price | $105.99 |
|---|---|
| KV | 230 / 260 / 430 / 480 / 550 / 650 |
| Stator | 41 x 20 mm |
| Max cells | 6S |
| Weight (480KV) | 292 g |
| Max power (480KV) | 2425W / 30s |
| ESC | 100A (480KV) |
Our take
A versatile 6S motor with a wide KV range; ask for specs on the KV you choose.
SunnySky X Series V3 X4120 V3 Brushless Motors at a glance
| Brand | Buddy RC |
|---|---|
| Price | $105.99 |
| Type | Motor |
| Options | 6 KVs |
| Availability | In stock at buddyrc.com |
| Returns | Items can be returned within 30 days of receipt with an RMA code requested by email.… |
Price check
At $105.99, the SunnySky X Series V3 X4120 V3 Brushless Motors is toward the top of Buddy RC's price range, whose 4,618 listed products run $0.25 to $9,999.
Similar items from other brands we track run $59.99 to $189.99.
Frequently asked questions
How does the X4120 compare to the X4125?
The X4120 has a 20mm-thick stator and weighs about 292g, versus 25mm and 351g for the X4125 at 420KV.
Which props are recommended?
For 480KV on 6S, EOLO 15x8, 15x10 or 16x8.
How much is the SunnySky X Series V3 X4120 V3 Brushless Motors?
Buddy RC lists it at $105.99 on buddyrc.com. We refresh prices throughout the day, but always confirm the final price at checkout.
What is Buddy RC's return policy?
Items can be returned within 30 days of receipt with an RMA code requested by email. Returns in new condition with original packaging have no restock fee; others are charged 10 to 20%, and shipping fees are not refunded.
How long does Buddy RC take to ship?
Orders placed before 2 p.m. EST usually ship the same business day from Columbus, Ohio, by USPS or UPS, with most packages arriving in 2 to 5 business days. Orders over $100 may ship free within the US, excluding most airplanes, and LiPo batteries ship only by UPS Ground.
Does the SunnySky X Series V3 X4120 V3 Brushless Motors come with a warranty?
Buddy RC's published warranty terms: Products older than 30 days may be exchanged under warranty but aren't eligible for a refund. Specific warranty terms aren't published in the policy text.
What options does the SunnySky X Series V3 X4120 V3 Brushless Motors come in?
KV: 230, 260, 430, 480, 550, 650.
Where can I buy the SunnySky X Series V3 X4120 V3 Brushless Motors?
The SunnySky X Series V3 X4120 V3 Brushless Motors is sold directly by Buddy RC on buddyrc.com. The Shop now button on this page goes straight to the product there.
Is the SunnySky X Series V3 X4120 V3 Brushless Motors in stock?
Yes. Buddy RC lists it as in stock on buddyrc.com as of our latest check. Stock and prices refresh throughout the day.
Is Buddy RC a legit store?
Buddy RC is a strong pick for RC pilots who need specific parts, power systems or helicopter spares from a US warehouse with same-day dispatch. Skip it if you want generous returns, since shipping is never refunded and returns that aren't in new condition carry a 10 to 20% restock fee. Confirm the exact part number and motor or frame compatibility before ordering, because most of the catalog is model-specific. Our full Buddy RC review covers shipping, returns and what to check before ordering.
Is the SunnySky X Series V3 X4120 V3 Brushless Motors expensive?
At $105.99 it is toward the top of Buddy RC's range ($0.25 to $9,999 across 4,618 products), and similar items from other brands run $59.99 to $189.99.
