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> 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

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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
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Price  $22.15

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 Customer rated
Total of 146 discussions.
kero  2 points - 1/26/2015
how much is the max current for this motor
 john 13 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.
toby  7 points - 1/9/2015
what size mount does this motor need?
Diogo  3 points - 12/18/2014
can someone tell me what the esc and propeller which I use in this engine?
Muhammed  2 points - 12/14/2014
hi....Is this motor waterproof???
 john 13 points
No it is not water proof, but is equipped with a water cooling jacket. Precautions should be taken to keep it dry.
Nicholas  1 points - 11/11/2014
Does the motor come's with hardware hose Inlets and outlets
 VRSS Greg 230 points
The motor comes with the cooling jacket, two o rings and two water nipples installed. No hose
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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