3-Phase AC Electric Motor Drive Systems Manufactured

For Golf Cars with the Addition of an Automatic Parking Brake

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We have Designed and Developed A Lithium-Ion Battery Kit For Golf Cars That Is Completely Integrated With The HPEVS Golf Car AC Drive Systems

It is Amazing To Us To See What Can Be Done With Our Drive Systems! Here Is Yet Another Example!

Our "Original" AC Drive System For Golf Cars Just Got A Whole Lot Better With The Introduction of an Automatic Parking Brake!!

Golf Car Systems


The "original", and still the best AC drive system available for your golf car!




To get information, please click on "Details" tab below.
We Have Developed a New Generic Software Package

New additions to this package include OBDII and Curtis Instruments enGage VII display support.


To get information, please click on "Details" tab below.

We have added to our website dimensional drawings of the Curtis Instruments controllers.

These drawings can be helpful during the design phase of a project.

To get information, please click on "Details" tab below.

We Are Pleased To Announce Our New Line of Oil Cooled Motors.

These motors have a stainless steel frame, anodized aluminum junction box and end bells, totally sealed and oil cooled.

To get information, please click on "Details" tab below.

The Folks at EV West Have Created a Vehicle with One of Our Drive Systems!




To get information, please click on "Details" tab below.

Diagnostic and Troubleshooting Documentation.






To obtain this information, please click on "Details" tab below.

144 Volt Automobile Systems

The Scion pictured has the first prototype!




Mining Vehicle Systems

Specialty motors designed and built for your specific applications!






To get information, please click on "Details" tab below.
96 Volt Automotive Systems

This is one of many systems available for auto conversions!




To get information, please click on "Details" tab below.
Motorcycle Systems

WHAT A RUSH!!






To get information, please click on "Details" tab below.
Utility Vehicle Systems


We have a drive system to fulfill your utility vehicle requirements!





To get information, please click on "Details" tab below.
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Links to our main drive system page
HPEVS Drive Systems

Our are powerful, efficient and reliable. Find out what our drive systems can do for your project.
Power Graphs Link

The power graphs can be accessed by clicking on the above graphic.
Schematics, Instructions and Troubleshooting

To assist you, our customers, we have compiled all the documentation needed to wire, program and troubleshoot. The wiring diagrams include documentation for on-road vehicles, golf cars and hydraulic pump applications. Click on the graphic above to open the page with the information.

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What's New

We have included a variation of the AC-20 motor called AC-23! The motor is wound to produce higher torgue compared to the AC-20 motor! Please check AC-2X motor page for more information!
AC 2x Family of Motors

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HPEVS AC Electric Motor Drive Systems For Golf Cars With an Automatic Parking Brake (AC-9)



The AC-9 motor is our original "Golf Car" motor which has proven itself to be powerful, reliable and efficient. We now have improved the functionality of this motor by adding an Automatic Parking Brake!

The automatic parking brake engages when the cart comes to a complete stop. The brake will hold the golf car in position until the user depresses the accelerator pedal to disengage the automatic parking brake and drives away. With this system, the mechanical brakes and mechanical parking brakes are still installed in the vehicle.

IMPORTANT NOTE: This Automatic Parking Brake Setup is Specific to Golf Cars That Are Stock; Meaning Stock Ride Height, Stock Tires and Stock Gearing



The weight of this motor is around 50 pounds/22.7 Kg.

Link to power graphs:



Here is a list of the typical applications for which this motor can be applied:

» Golf Car



Please contact us with any questions you might have:

OEM customers, please contact us


Of course all our systems are backed by an HPEVS and Curtis



Included in the package with this motor is the controller of your choice based on the amount of current needed to drive the vehicle efficiently, wiring harness (generic or specific based on your needs), dash display and an controller mounting plate. Also available are #2 battery/motor cables. The #2 battery/motor cables are needed with all our golf car system. We offer these cables as an option to purchase, but you can make your own cables as well.



AC Golf Car Electric Motors with Automatic Parking Brake



AC 9-37.51

10 spline
With an Automatic Parking Brake

10 spline golf car club car with automatic parking brake

Club Car Specific Motor
10 spline Coupler with Graziano Golf Car Style Adaptor






AC 9-37.52

19 spline
With an Automatic Parking Brake

ac090752


19 Spline Coupler with Graziano Style Adaptor







AC 9-38.52

19 spline
With an Automatic Parking Brake

product image 2

Dana or Team Industries Differential
Yamaha, E-Z-GO, Columbia, Tomberlin
Golf Cars






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