EZGO TXT Navitas Controller Kit - 600 amp or 440 amp

EZGO Navitas Controller Kit - 600 amp or 440 amp

Upgrade your EZGO golf cart with the Navitas TSX 3.0 Controller Kit — the ultimate plug-and-play performance solution for enhanced torque, speed, and control. Available in both 440AMP and 600AMP configurations, this kit is compatible with a wide range of EZGO models including TXT T48, PDS, 36V DCS, Series, ITS, and AC drive systems. Whether you're running lead-acid or lithium batteries, Navitas transforms your cart into a high-performance machine built for the street, trail, or course.

Which Navitas kit do I need?

• EZGO TXT T48 (most common of the TXTs. Most carts years 2010 and newer) 
  • Your controller is: Curtis 1206HB
    
  • You have a 48v system cart
  • A 48v S4 will also work with this selection (although not a 72v S4)
• EZGO TXT 36V PDS
  • Your controller is: Curtis 1206MX
  • You will also have a Fwd/Rev switch instead of a lever (if lever, it's a 36V DCS)
  • PDS 36V,DCS 36V, Series carts (ITS), and AC Drive models
• EZGO TXT 36V DCS
  • Your controller is: Curtis 1206SX
  • You will have a lever style Fwd/Rev instead of a rocker style switch (if rocker style switch, it's a PDS)
  • Also works for if you have an EZGO Medalist (most Medalists had a DCS system)
• 1268/1264 Controller EZGOs
  • Your controller is: Curtis 1268/1264
  • Common carts with these controllers are:
    • MPTs (Multi-Purpose Trucks)
    • L4/L6
    • Shuttle 6
    • Rare TXTs / S4s that have been upgraded to a Curtis 1268/1264 controller
    • ITS upgrades
      
• EZGO TXT ITS Series (1994-2005)
  • To distinguish if your cart is an ITS Series, it will be a Series cart (has fwd/rev lever instead of switch) and you can determine it is an ITS one of these two ways:
    
    • Accelerator Pedal: Check the connection to the accelerator pedal. In an ITS system, you will not see a direct mechanical cable running from the pedal up to the motor controller. Instead, you will observe electrical wiring connected to a sensor mechanism near the pedal. This sensor sends an electrical signal to the controller based on the pedal's position
    • Absence of Throttle Cable: Trace from the accelerator pedal upwards towards where the motor controller is located. If you don't see a physical cable, it's likely an ITS system. Older, non-ITS carts use a mechanical cable.
• EZGO Marathon or Series Cart (1986-1994)
  • Your cart will either be a Marathon, or, a Series cart years 1986-1994. If it's a Series cart, you will have a fwd/rev lever instead of switch

Not compatible with: Non-listed EZGO models or carts with non-factory motor/controller setups.

Model Selection Guide

• 440AMP Controller Kit – Ideal for moderate upgrades, improved range, and smooth driving
• 600AMP Controller Kit – Maximum performance for lifted carts, hills, and high-torque needs

* *Performance varies depending on tire size, motor, battery condition, and terrain.
***A controller alone on Series cart will provide more Torque but no additional Speed. To obtain more Speed on a Series cart you will need more voltage and or a bigger motor with the controller.***

Pre-Installation Requirements

• Compatible Curtis controller (see list above)
• Heavy-duty solenoid required for 600a; but just recommended for 440a 
  
• Battery Requirements:
• Lithium: 440A = 400A peak discharge; 600A = 500–600a peak discharge
• Lead-acid: Minimum 4-gauge cables
• For EZGO Series models, a 3-Amp diode is required to protect controller during install.
• For EZGO models, that are not a series model, a 3-Amp diode is not required, but often recommended when installing high amperage controllers. 

Key Performance Benefits

• Boost top speed by 8-12mph (600amp) or 4-7mph (440a)
• Up to 75% more torque (600a controller) or 45% more torque (440a)
  
• Better hill climbing, acceleration, and throttle response
• Retains use of stock motor, solenoid, and wiring
• Compact, lightweight controller with plug-and-play install
• Built-in thermal protection and speed sensor input
• Customizable regen braking and motor reversing

Included in the Kit

• Navitas TSX 3.0 Controller – 440A or 600A
• Plug-and-play Personality Module for your model
• (Optional) Dash-mountable On-The-Fly (OTF) Programmer
• Mounting plate and harness (for AC kits only)

On-The-Fly Programmer Capabilities

• Adjust acceleration, speed, and regen braking in real time
• Switch between performance and economy modes on the go
• Lock settings to prevent changes or tampering
• Remove or disable dials for added security

Bluetooth App Control (Navitas App – iOS & Android)

• Live dashboard view: speed, battery voltage, gear position
• One-click lockout for added cart security
• Send error alerts and diagnostics directly to your dealer
• Built-in digital speedometer and gear display
• AC kits: Enable “Cruise Mode” for up to 15% higher top speed

Why Choose Navitas for Your EZGO Golf Cart?

• True plug-and-play upgrade for Curtis-controlled EZGO models
• Compatible with stock motors and wiring – no major mods needed
• Dial in your ride for any environment – golf course, trail, or neighborhood
• Adjust and monitor everything from your smartphone or dash