Parts/Electric power/Motor & ESC combos/Furitek Unity PRO CRAWLCORE Waterproof 2-in-1 Brushless ESC & Motor Combo for Traxxas® TRX-4M™
Furitek Unity PRO CRAWLCORE Waterproof 2-in-1 Brushless ESC & Motor Combo for Traxxas® TRX-4M™
Furitek

Furitek Unity PRO CRAWLCORE Waterproof 2-in-1 Brushless ESC & Motor Combo for Traxxas® TRX-4M™

Part # FTK-FUR-2663
Where to buy
$149.99
AMain Hobbies
Seen Oct 12, 2026
$149.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

ESC & Motor Combo Overview:

Unlock the full potential of your TRX-4M with the Furitek CRAWLCORE Waterproof Combo, a high-torque, ultra-smooth brushless upgrade built for extreme crawling, total control, and all-weather performance.

About the Unity PRO CRAWLCORE


Waterproof Power Combo

The Furitek Unity PRO CRAWLCORE is a waterproof 2-in-1 brushless system that combines a 3500KV motor with a built-in FOC ESC. Engineered for the TRX-4M, it’s fully sealed against water and dust (IP67 equivalent), making it ideal for extreme conditions. Its compact design simplifies installation with fewer wires, offering a clean, plug-and-play upgrade.

Smooth Crawling Control

FOC (Field-Oriented Control) technology delivers whisper-quiet operation, minimal cogging, and unmatched low-speed throttle precision, critical for technical crawling. With selectable BEC outputs (5.5V / 7.4V / 8.4V @ 5A), it powers even the hungriest micro servos, while the Furicar app allows on-the-fly tuning, telemetry monitoring, and firmware updates.

Torque-Optimized Drivetrain

Paired with the upgraded MICRO STELLAR 4M Transmission, the combo features CNC-machined aluminum housing and steel gears for durability and brushless compatibility. Its 40.3:1 gear ratio enhances torque and throttle response, giving your TRX-4M unbeatable crawling finesse and reliability right out of the box.

Features:

  • 2-in-1 motor and ESC combo
  • Fully waterproof and dustproof
  • 3500KV brushless motor for power
  • FOC tech for smooth throttle
  • Adjustable BEC: 5.5V / 7.4V / 8.4V @ 5A
  • Works with Furicar app for tuning
  • Plug-and-play design for easy install
  • CNC aluminum gearbox for strength
  • Steel gears for durability and torque
  • 40.3:1 gear ratio for crawling control

Includes:

  • (1) Unity PRO CRAWLCORE Waterproof 2-in-1 Brushless ESC & Motor Combo

Specifications:

Diameter -
Length -
Weight -
ESC
Suggested Application Micro Rock Crawlers
Motor Type Brushless
Input Voltage 2-3S LiPo (7.4-11.1V)
Continuous Current -
Burst Current -
BEC Voltage 5.5-8.4V (Adjustable)
BEC Continuous Current 5A
BEC Peak Current -
Motor Connector 3 Pin
Battery Connector PH 2.0
Motor Wire -
Battery Wire -
Programming Furicar App
Motor
Suggested Application Micro Rock Crawlers
Type Brushless
Turn/kV 3500kV
Input Voltage 2-3S LiPo
Watts -
Connector 3 Pin
Shaft Length -
Shaft Diameter -

*Tech Note: For Traxxas TRX-4M platforms, Furitek has included a custom steel driveshaft specifically designed to fit the motor and transmission setup perfectly. To ensure proper installation, the included driveshaft must be used as other shafts may not align correctly.

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