• Tekin RX4 Hardbox Waterproof Sensored/Sensorless D2 Crawler ESC

Tekin’s RX4 Brushless Sensored ESC is designed to power your chassis past any obstacle. With massive power handling capabilities, a waterproof* design and all the customization features you’d expect from a Tekin ESC; the RX4 has you covered no matter the situation. Not only reliable, this ESC has a host of built in features like a High Voltage BEC, Drag Brake, Data Logging and the ability to run either Brushed or Brushless motors. The RX4 defines versatility.

The RX4 Housing is a thick-walled, reinforced Hardbox design able to withstand the elements and rough environments that come with true Offroad adventuring.

Rocks, Dirt, Snow, Sand, Mud, Trail and Track; the RX4 is no-limits RC fun.

*Waterproof in sensorless operation only. Dielectric Tek Grease provided for waterproofing sensor ports.


  • HardBox Waterproof Design
  • ​ Ultra-smooth and Precise Throttle and Braking Control
  • ​ Compatible with Sensored/Sensorless Brushless and Brushed Motors
  • ​ Easily Access Programming, Anywhere, Anytime
  • ​ Datalogging Capability
  • ​ High Voltage Programmable BEC
  • ​ EZ Access HotWire Programming Port
  • ​ HotWire PC Interface for Advanced Programming and Updating
  • ​ D2: Dual Drive Mode Technology
  • ​ On-Board Temperature Indicator
  • ​ HDAC: High Density Copper PCB
  • ​ **Sensor Plug for Precise Commutation with all Motors
  • ​ Gold-plated Solder Posts for Easy Wire Replacement
  • ​ Self Test Diagnostics and Factory Reset
  • ​ Pit Tune Mode
  • ​ DGF2: Digital Glitch Filtering V2
  • ​ QuickTune™ Programming
  • ​ One-Touch Radio Calibration


  • Controls: Forward/Brake/Reverse
  • Input Voltage: 2S-6S LiPo
  • BEC: 6.0v / 7.4v @ 8amps

Motor Limit Brushless Mode:

  • 2S -  5700kV 4-pole
  • 3S -  3500kV 4-pole
  • 4S -  2300kV 4-pole
  • 5S - 1800kV 4-pole
  • 6S - 1200kV 4-pole

Motor Limit Brushed Mode:

  • No Limit

  • Max Current: *240amps per phase
  • Timing Profiles: 7 choices (on board)
  • Brushed Modes: FWD Only / FWD-REV / FWD-REV Delay
  • Brushless Modes: FWD Only / FWD-REV / FWD-REV Delay
  • Dimensions:  1.6 x 2.0 x 1.4" / 40.6 x 50.8 x 35.5mm
  • Weight: 2.65oz / 75.5g

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Tekin RX4 Hardbox Waterproof Sensored/Sensorless D2 Crawler ESC

  • Brand: Tekin
  • Product Code: TEKTT2000
  • Availability: 1 Day
  • $185.99

Tags: Tekin, RX4, Hardbox, Waterproof, Sensored, Sensorless, D2, Crawler, ESC