"Innovation in Motion,

Powered by Electricity"

Header Content Region

Insert text, image or banner ads here, or just delete this text and leave this area blank!

hpevs golf car lithium battery pack HPEVS AC electric motors for golf cars EM parking Brake for golf cars HPEVS 144 volt Drive System HPEVS AC Electric Motor for Mining Industry HPEVS AC Electric motor, 96 Volt Drive System HPEVS AC electric motors for industrial vehicles HPEVS Troubleshoot and Diagnostics
Our "Original" AC Drive System For Golf Cars Just Got A Whole Lot Better With The Introduction of an Automatic Parking Brake!!

HPEVS Golf Car Drive Systems

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

Now Our Golf Car Drive Systems Come With
a 5 Year Warranty!!
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

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.
Utility Vehicle Systems


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




To get information, please click on "Details" tab below.
Diagnostic and Troubleshooting Documentation.





To obtain this 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.
Hosts Mike Brewer and Edd China From The TV Show Wheeler Dealers Teamed Up with EV West to Install a HPEVS Drive System Into a 1985 Maserati Bi Turbo

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

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



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


small portfolio1 small portfolio2 small portfolio3 small portfolio4 small portfolio5
Innovation in Motion, Powered by Electricity
get in touch
Links to our main drive system page
HPEVS Drive Systems

Power Graphs Link

Schematics, Instructions and Troubleshooting

Main Menu:

What's New


ebay logo

We have items in the shop that we are selling on ebay.

Newsletter Signup

Recent Events

Describe the photo or the page it links to

The Recent Events content includes an image that 'AUTO' scales. No need to resize the image, the CSS style sheet will resize the images for you, once rendered in your web page.

OC AC 5X (50/51)



We are proud to introduce our new line of Oil Cooled AC motors that are now available.

With the introduction of oil cooling and with the assistance of an external oil pump and an heat exchanger to cool the oil, the continuous horsepower and torque from this motor will be higher than our standard steel frame motor line.

This motor has been designed with the marine industry in mind, but it can be adapted to any other mode of transportation. The motor includes a stainless steel frame with the shaft of the rotor being made of stainless steel too. With anodized aluminum end bells and junction boxes, the motor can stand up to a salt environment.

The motor is the same 8" diameter as the standard steel frame AC-5X motors but now with the use of a junction box, the total height is a little over 11".

The motor is totally sealed which allows for the oil to cool all the internal surfaces of the motor.

Please keep in mind that this new oil cooled design was made with the marine industry in mind. On a marine vessel there is a constant flow of cool lake/ocean water that is supplied to the heat exchanger to cool the oil effectively. If these new systems are installed in anything other than marine, performance results may vary based on how cool the oil is returning to the motor.

The weight of the AC 50 and AC 51 oil cooled motors are 120 pounds/54.4 Kg.



» IMPORTANT «


DO NOT RUN THE MOTOR WITHOUT OIL!!





Power Graphs Coming Soon





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



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

• Marine
• Automotive
• Mining
• Utility Vehicles


Controller Option:

• 1238-5601 (48V 650A)
• 1238-6501 (72V 550A)
• 1238R-7601 (96V 650A)
• 1239E-7621 (96V 650A) » 12 volt logic «
• 1239E-8521 (144V 500A) » 12 volt logic «



OC AC 5X-32.26

Oil Cooled "B" Face

product image 2

1 1/8" Keyed Shaft with an
7/8" Auxiliary Keyed Shaft



OC AC 5X-32.28

Oil Cooled "B" Face

product image 2



1 1/8" Keyed Shaft Single Shaft






OC AC 5X-33.26

Oil Cooled "C" Face

product image 2


1 1/8" Keyed Shaft with an
7/8" Auxiliary Keyed Shaft




OC AC 5X-33.28

Oil Cooled "C" Face

product image 2


1 1/8" Keyed Shaft Single Shaft






slide up button