• Surpass Hobby KK 3674 waterproof sensorless brushless motor with ESC and wiring harness
  • Surpass Hobby KK 3674 red aluminum brushless motor close-up with output shaft and leads
  • RC car brushless ESC close-up with cooling fan, power leads, and receiver plug
  • KK 3674 motor side view showing mounting holes, end bell, and gold bullet connectors
  • KK 3674 motor and 120A ESC combo labeled 1900KV on graphic
  • ESC programming card panel with cutoff, brake, reverse, and timing settings indicators
  • Surpass Hobby 3674 motor kit collage showing KV options 1900KV 2250KV 2500KV and connectors
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Surpass Hobby KK 3674 Waterproof Sensorless Brushless Motor 1900/2250/2500KV for 1/8 1/10 RC Cars

Surpass Hobby KK 3674 Waterproof Sensorless Brushless Motor 1900/2250/2500KV for 1/8 1/10 RC Cars

Surpass Hobby

$49.00 USD
$49.00 USD
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Overview

The Surpass Hobby KK 3674 is a waterproof, sensorless brushless motor designed for 1/8 and 1/10 RC cars. It features a CNC-machined 6061-T6 aluminum heatsink can, high-purity copper windings, and a precision-balanced rotor for smooth, efficient power delivery.

Key Features

  • 4-pole, 12-slot high-torque motor design
  • CNC-machined 6061-T6 aluminum heatsink can
  • High-purity copper windings to maximize efficiency
  • High-RPM ABEC5 oversized bearings
  • Precision-balanced rotor for smooth operation and reliable high RPM
  • 0.35 mm stator laminations
  • Removable/replaceable rotor
  • 4.0 mm gold-plated connectors

Specifications

Brand SURPASS HOBBY
Series KK
Motor Size 3674
KV Options 1900KV / 2250KV / 2500KV
Watts 1800 W
Max Voltage <22.2V
Max Current 80 A
Max RPM 50000
Rotor Poles 4
Motor Diameter 35.5 mm
Motor Length 73 mm
Shaft Diameter 5.0 mm
Shaft Length 17 mm
Connector 4.0 mm gold-plated
Motor Weight 298 g

ESC Specifications (when selecting 120A ESC Combo)

ESC Model KK 120A ESC
Continuous/Burst Current 120A/600A
Motor Type Sensorless brushless motor
Battery 3-6S LiPo / 9-18 cells NiMH
BEC Output 6.1V/3A (switch mode)

Available Options

  • 3674 1900KV Motor
  • 3674 2250KV Motor
  • 3674 2500KV Motor
  • 3674 1900KV Motor + 120A ESC Combo
  • 3674 2250KV Motor + 120A ESC Combo
  • 3674 2500KV Motor + 120A ESC Combo
  • KK Programming Card

Applications

  • 1/8 and 1/10 electric RC cars requiring a 3674-size sensorless brushless motor
  • RC racing and off-road builds where waterproof electronics are preferred

If help is needed choosing the right KV option or combo for a specific RC car setup, contact [email protected] or visit https://rcdrone.top/.

Details


Choose 1900KV, 2250KV, or 2500KV to match your 1/8 or 1/10 RC car gearing and battery setup.

Surpass Hobby KK 3674 motor with KK 120A ESC combo and included connectors, 1900KV/2250KV/2500KV options

Combo options bundle the 3674 motor with the KK 120A ESC for a clean, ready-to-wire power system.

Close-up of KK 3674 brushless motor showing 6061-T6 aluminum heatsink can, output shaft, and 4mm gold plugs

A CNC-machined aluminum heatsink can and 4.0mm gold-plated connectors support efficient, reliable power delivery.

KK 36 series waterproof brushless motor features graphic highlighting high-purity copper windings and balanced rotor design

High-purity copper windings and a precision-balanced rotor are built for smooth RPM and strong torque under load.

Surpass Hobby KK 3674 1900KV 2250KV 2500KV Waterproof Brushless Motor for 1/8 1/10 RC CarsKK 3674 motor dimension diagram and specification table including shaft length and mounting measurements for RC installs

Install planning is easier with the detailed size drawing and fitment measurements for 3674 motor mounts.

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