AC-51 Kit

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Custom built: Allow 4 to 6 weeks

Quick Overview

AC Induction Motor & Curtis Controller

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These custom-wound AC induction motors can produce an amazing amount of power and torque at excellent levels of efficiency. Some of the benefits of an AC induction motor are a longer power band, higher RPM, regenerative braking, and easy reversing. They do not require contactor pre-charge resistors or diodes.

The AC 51 motor is the same 8" motor that has been designed around the Curtis 144 volt controller. It is capable of producing 88 horsepower and 108 ft-lbs. of torque. It was designed for use in an automotive application with a curb weight of 4000 lbs or less. This system is used in other vehicles that require the torque and horsepower that this motor supplies. It is available with or without a 7/8" auxiliary shaft.

Typical applications for which this motor can be applied:

Utility Vehicles


Application Voltage
Controller Current
B-Face or
144 1239-8501 500 88 108

All AC drive kits include: Motor, Controller, Tyco Contactor, Wire Harness, Display


Diameter: 8 in
Weight: 115 lb. 
Motor efficiency: 89% 
RPM: 6500 

Stock Status Custom built: Allow 4 to 6 weeks
Country of Manufacture United States

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For assistance with selecting the right components for your project, please use the appropriate form:

LVW Land Vehicle Worksheet
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