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Surpass Hobby Waterproof Brushless Motor KK 3650 3660 3665 3670 3674 for 1/8 1/10 RC Car Racing Off-Road Wltoys MJX hglrc Boat

Surpass Hobby Waterproof Brushless Motor KK 3650 3660 3665 3670 3674 for 1/8 1/10 RC Car Racing Off-Road Wltoys MJX hglrc Boat

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Specifications

Brand Name
SURPASS HOBBY
High-concerned chemical
None
Is Electric
No Battery
Is it battery/power supply
N
Is it charger/adapter
N
Origin
Mainland China
Is Batteries Included
No
Material
Metal
Recommend Age
14+y
RC Parts & Accs
Motors
For Vehicle Type
Cars
Use
Vehicles & Remote Control Toys
Upgrade Parts/Accessories
Frame
Remote Control Peripherals/Devices
Motor
Tool Supplies
Assembled class
Quantity
1 pcs
Technical parameters
value 2
Model Number
R1679/R1680/R1681/R1682/R1683/R1684/R1685/R1686
Four-wheel Drive Attributes
Motors
Wheelbase
Screws
Choice
yes

Product Description

Surpass Hobby Waterproof Brushless Motor KK 3650 3660 3665 3670 3674 for 1/8 1/10 RC Car Racing Off-Road Wltoys MJX hglrc Boat


3650 RC Motor
KV(RPM/Volt): 1650KV 2050KV 2300KV 3100KV 3600KV 4500KV 5200KV 5900KV 6900KV 7700KV 9000KV Optional
Watt: 850
Max RPM: 60000
Max voltage: <8.4V
Max amps: 100A
Rotor poles: 4
Diameter: 35.5mm
Length: 49mm
Shaft length: 15mm
Connector: 4.0mm gold
Weight:165g
3660 RC Motor
KV(RPM/Volt): 1750KV 2200KV 2600KV 3100KV 3500KV 4200KV Optional
Watt:1200
Max RPM: 50000
Max voltage: <12V
Max amps: 100A
Rotor poles: 4
Diameter: 35.5mm
Length: 59mm
Shaft length: 17mm
Connector: 4.0mm gold
Weight:218g
3665 RC Motor
KV(RPM/Volt): 1800KV 2300KV 2900KV 3100KV 3500KV Optional
Watt:1400
Max RPM: 50000
Max voltage: <14.8V
Max amps: 95A
Rotor poles: 4
Diameter: 35.5mm
Length: 64.5mm
Shaft length: 17mm
Connector: 4.0mm gold
Weight:250g
3670 RC Motor
KV(RPM/Volt): 2050KV 2650KV 2850KV Optional
Watt:1600
Max RPM: 50000
Max voltage: <16.5V
Max amps: 95A
Rotor poles: 4
Diameter: 35.5mm
Length: 69mm
Shaft: 5.0mm
Shaft length: 17mm
Connector: 4.0mm gold
Weight:276g
3674 RC Motor
KV(RPM/Volt): 1900KV 2250KV 2500KV Optional
Watt:1800
Max RPM: 50000
Max voltage: <22.2V
Max amps: 80A
Rotor poles: 4
Diameter: 35.5mm
Length: 73mm
Shaft: 5.0mm
Shaft length: 17mm
Connector: 4.0mm gold
Weight:298g
Package Information:
Package size:110 x 70 x 42mm/4.33 x 2.76 x 1.65in
Package weight:300g/7.12oz
General Box Package
Package Included:
1 x SURPASSHOBBY KK Brushless Motor
1 x English Manual




Pros & Cons

Pros

  • Waterproof design for off-road and boat use
  • Multiple KV options for various RC speeds
  • High max RPM and power up to 850W
  • Compatible with popular brands like Wltoys

Cons

  • No battery or ESC included
  • High amps may require strong cooling
  • 14+y age recommendation
  • Single piece, needs full RC setup

Common Questions

What material and waterproof rating for Surpass Hobby Brushless Motor?

Metal construction, waterproof for RC cars, boats, off-road.

What sizes and KV options for this RC motor?

KK 3650, 3660, 3665, 3670, 3674; KV from 1650 to 9000.

Is this motor compatible with 1/8 1/10 RC cars?

Yes, for 1/8 1/10 RC car racing, Wltoys, MJX, hglrc, boats.

What are the max specs for Surpass Hobby motor?

Max RPM 60000, voltage <8.4V, amps 100A, watt 850.

Where is this RC brushless motor shipped from?

Mainland China; 14+y age, no battery included.

Product information last updated on February 20, 2026