More from Buddy RC →SunnySky V4004 High Efficiency Brushless Motors
$49.99$55.20Save 9%
In stock at buddyrc.com
The SunnySky V4004 is a slim, high-efficiency brushless motor for long-endurance multirotors, in 300 or 400 KV. The KV300 version weighs just 51g, runs 4S to 6S and suits take-off weights up to about 400g per motor. It shares the V series' EZO bearings and anti-loosening knurled design.
See all 4,621 Buddy RC products·Visit buddyrc.com
Price and stock from buddyrc.com, refreshed daily. We may earn a commission if you buy.
Highlights
- KV options: 300, 400
- Very light 51g (KV300)
- Japanese EZO bearings
- Stepped, knurled anti-loosening design
- Hollow-cut bell for weight savings
Best for
Builders of light endurance multirotors who count every gram.
Things to consider
- Specs are listed only for KV300
- Lower power ceiling (250W, KV300) than the V4006 and V4008
- Props sold separately
Key specs
| Price | $49.99 |
|---|---|
| KV options | 300, 400 |
| Stator (KV300) | 40mm x 4mm |
| Weight (KV300) | 51g |
| Cells (KV300) | 4S to 6S |
| ESC (KV300) | 20A |
| Max power (KV300) | 250W |
Our take
The lightest of the V-series flat motors, for small endurance builds.
SunnySky V4004 High Efficiency Brushless Motors at a glance
| Brand | Buddy RC |
|---|---|
| Price | $49.99 (was $55.20) |
| Type | Motor |
| Options | 2 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 $49.99, the SunnySky V4004 High Efficiency Brushless Motors is toward the top of Buddy RC's price range, whose 4,618 listed products run $0.25 to $9,999.
It's currently 9% below its listed price of $55.20. Sale prices can end without notice, so check the live price before you order.
Similar items from other brands we track run $59.99 to $189.99.
Frequently asked questions
How much can it lift?
For KV300, SunnySky recommends up to about 400g take-off weight per motor.
What props are recommended?
EOLO CN12x5, CN13x5 or CN15x5.5 for KV300.
Is the SunnySky V4004 High Efficiency Brushless Motors on sale?
Yes. Buddy RC lists it at $49.99, down from $55.20 (9% off). Sale prices change, so confirm the live price on buddyrc.com.
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 V4004 High Efficiency 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 V4004 High Efficiency Brushless Motors come in?
KV: 300, 400.
Where can I buy the SunnySky V4004 High Efficiency Brushless Motors?
The SunnySky V4004 High Efficiency 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 V4004 High Efficiency 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 V4004 High Efficiency Brushless Motors expensive?
At $49.99 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.
