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  Item found in the following categories;
> Electric Motors > Boat Motors
> Boats & Parts > Brushless Motors


2040SL 4800kv Brushless Inrunner (WaterCooled)

2040SL 4800kv Brushless Inrunner (WaterCooled)

2040SL 4800kv Brushless Inrunner (WaterCooled)
Kv: 4800rpm/v
Diameter: 25.2mm
Length: 56mm
Shaft diameter: 2.3mm
Weight: 77g
Battery: 2-3S 2200mAh+
Standard size mounting holes enable the motor to be installed in a large range of motor mounts.


PRODUCT ID: 4800-2040SL

Kv(rpm/v) 4800
Weight (g) 77
Max Current(A) 0
Resistance(mh) 0
Max Voltage(V) 11
Power(W) 0
Shaft A (mm) 2
Length B (mm) 45
Diameter C (mm) 25
Can Length (mm) 39
Total Length E (mm) 55
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Customer Data

Weight: 97g
International Warehouse
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Price  $22.15

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 Customer rated
Total of 149 discussions.
tan  1 points - 8/5/2015
can anyone tells me how many amp esc is the best for this motor? will it be powerful enough to drive a t.tiger atlantic size boat?
Tom  1 points - 7/2/2015
what ESC should I use for this?
pascal  4 points - 6/4/2015
Quel coupleur utiliser avec la sortie d'arbre 2,3mm?
kero  3 points - 1/26/2015
how much is the max current for this motor
 john 16 points
I wondered the same thing, so I looked at other 2040 4800kv motors, they recommended a 25 amp esc, so I would expect to use a 30 amp water cooled unit.
 Devin 40 points
hey i will tell you what i put in my nqd jet boat. one i put this motor, Turnigy Marine 120A Brushless Boat ESC,HXT500 6.2g / 0.6kg / .08sec Micro Servo, and lastly,HobbyKing®* ™*HK-GT2B 3CH 2.4GHz Transmitter and Receiver w/Rechargable Li-ion Battery. it did work but i did something to the receiver and it fried. i have a new one on the way and a new battery that i hope fits into a switch i have. here is the battery, Rhino 1750mAh 2S 7.4v 20C Lipoly Pack (AR Warehouse). when i get it in the boat and test it all i can show you all. :)
toby  8 points - 1/9/2015
what size mount does this motor need?
Customer Reviews
Overall Rating
15 thumbs up!
I put it in a redbird hull from H&M with 2S LiFe and it go very fast. With a 2 lipo it can go more than 50 km/h !
The cooling is very effective an with a k29 the motor is cold.
I have more than 10 min of run with 2300 LiFe.
Je l'ais mis dans une coque de Redbird de H&M
avec un pack de 2s Life et il va trs vite !!
Avec un lipo je peu aller plus que 50 km/h.
Le refroidissement est efficace.
J'ai plus de 10 min d'autonomie avec un 2300 mA.

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Overall Rating
6 thumbs up!
The given engine is ideally suited for boats ECO mini. Never use without water cooling. Use a propeller of 25-28 mm.

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Overall Rating
2 thumbs up!
nice small motor. the cooling is good because the motor gets hot fast. be cairful not to bend the shaft because it is veary easly done

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Overall Rating

2 thumbs up!
Wow, this is the most ideal motor for a nice micro boat build!

I tested this with 7.4v 1800 mah lipos and a 25 amp speed control and it rocked! super fast and consistand power.

I got 50 watts at 8.2 amps and lots of thrust.

The motor got a bit warm with the 30mm prop and 6 cells but with 27mm and 3 lipoly, it should run cooler and higher RMP at the motor shaft.

Lots of applications for this motor at this price.

The runs really smooth.

I highly recommend this motor for weight saving and very good power to weight ratio output.

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Overall Rating
1 thumbs up!
I put one of these motors in my NQD jet boat with a 60A esc, I cant say enough about this little motor, it makes my little jet boat fly! even on a 8.4V nimh. I thought the 60A esc was a bit much for what im doing so i bought a turnigy 35A marine esc. I recommend this motor to anyone who has a small boat. Thanks hobbyking for the low prices.

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