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?
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EZGO TXT T48 (most common of the TXTs. Most carts years 2010 and newer)
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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)
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EZGO TXT 36V PDS
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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
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EZGO TXT 36V DCS
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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)
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1268/1264 Controller EZGOs
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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
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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:
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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
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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
| Controller Size |
Speed Increase* |
Torque Gain |
Programming |
Battery Requirements |
Wiring Requirements |
| 440A |
+4–7 MPH |
Up to +45% |
Yes
Bluetooth App programming & optional OTF Module |
Greater than 350A
peak output
(most lithium & lead-acid solutions) |
4g cables recommended |
| 600A |
+8–12 MPH |
Up to +75% |
Yes
Bluetooth App programming & optional OTF Module |
Greater than 500A
peak output
(lead-acid, or approved Lithium Battery brands*) |
- 4g cables at minimum; 2g cables recommended
- Heavy Duty Solenoid required |
* *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
- If you select this variant: ITS Series (1994 - 2005), a 3-Amp diode is strongly recommended to protect the controller during installation. Then, if you upgrade to the Curtis Heavy Duty solenoid (above), you will likely also need this 3a Diode: Diode 3 Amp with Spade Terminals
- 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
