Kobalt KLB 1040A-03 - 40V 520 CFM Cordless Brushless Blower
The Kobalt KLB 1040A-03 is a cordless handheld leaf blower delivering up to 520 CFM and 120 MPH. It is powered by a 4.0Ah 40V battery. (Read full specs)
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Description
Zoom on the Kobalt KLB 1040A-03
The Kobalt KLB 1040A-03
With its cordless handheld design, the Kobalt KLB 1040A-03 is appropriate for homeowners with yards that fall in the mid-size range, suitable for seasonal cleanup and routine care.
It is rated for a maximum air volume of 520 cubic feet per minute (CFM) and a maximum air speed of 120 miles per hour (MPH). In practice, it can shift small amounts of leaves and light debris on yard sections, patios, or walkways.
With a 40V brushless motor, the KLB 1040A-03 operates as a fully cordless unit, giving freedom to move around your yard. One 4.0Ah battery is included.
The Kobalt KLB 1040A-03 features customizable airflow through its variable speed settings and effortless speed maintenance with built-in cruise control.
With a bare tool weight of 4.8 lbs and 7.6 lbs with the battery, this handheld unit can be guided with one hand to direct airflow where needed.
Product Video
The Kobalt KLB 1040A-03's performance versus other blowers
The following charts are provided to give you an idea how the key specs of the Kobalt KLB 1040A-03 compare with handheld leaf blowers of similar voltage (between 36 and 48V).
- Weighing only 4.8 lbs as a bare tool, the Kobalt KLB 1040A-03 is on the lighter side compared with many cordless handheld blowers in the 36 to 48V range. Should weight be a deciding factor, the Black+Decker LSW40C is worth a look at just 2.4 lbs the bare tool.
- Upon exiting the nozzle, the air can reach speeds of up to 120 MPH, which is on the lower end for battery-operated handheld blowers between 36 and 48V. For the fastest air speed in this category, you may want to consider the Husqvarna 350iB, which can expell air at a velocity that can reach 200 MPH.
- The airflow of Kobalt KLB 1040A-03 reaches 520 CFM (Cubic Feet per Minute), placing it on par with other cordless handheld blowers with a comparable voltage. If air volume is important to you, the Ryobi RY40HPLB01K, with 800 CFM, could be in your good books.
Price comparison
As you can see from these interactive charts, when compared to other 36-48V cordless blowers, the Kobalt KLB 1040A-03 is on the cheap side of the price range.
It can therefore be a really good buy if you're looking to acquire a budget blower.
The bottom line
- Inexpensive
- Brushless motor
- Cruise control
- Light bare tool weight (4.8 lbs)
- Decent CFM (520 CFM)
- Low MPH (120 MPH)
Do you own the Kobalt KLB 1040A-03 and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Type | Cordless |
|---|---|
| Handling | Handheld |
| Air volume | Up to 520 CFM |
| Air speed | Up to 120 MPH |
| Motor type | Brushless |
|---|---|
| Battery system | 40V Li-ion |
| Battery capacity | 4.0Ah (160Wh) |
| Autonomy | — |
| Speed settings | Variable / Turbo |
| Battery included | 1 x 4.0Ah (KB 440-03) |
|---|---|
| Cruise control | Yes |
| Weight (w/ battery) | 7.6 lbs |
|---|---|
| Weight (tool only) | 4.8 lbs |
| Warranty | 5 years |
| UPC | 692042013836 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it. For full technical details on the Kobalt KLB 1040A-03, the user manual is available here (opens in a new tab).
About Kobalt
Kobalt is an American tool brand introduced in 1998 and distributed mainly by Lowe’s. Produced through partnerships with manufacturers like J.H. Williams, Kobalt focuses on accessible, homeowner-oriented equipment. Its leaf blowers are primarily cordless models, competing with brands such as Craftsman and Husky. Certain models share design and manufacturing origins with products from Greenworks.
Warranty Information
The Kobalt KLB 1040A-03 is covered under a warranty for up to 5 years. This warranty may not cover all parts of the blower.
For more information about the warranty of Kobalt blowers, please consult Kobalt's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-3-KOBALT (888-356-2258).
Questions & Answers
How long does it take to charge the Kobalt blower battery? (Asked October 31, 2023)
With the included charger, the 4Ah battery should take a bit under 3h to fully recharge.
Couldn't find the right answer for you? Ask your own question.
