Trusted Dynos for Superior Engine Testing

14,000 Dynos Sold – Over 60 years in Business – All Parts Manufactured In-house 

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High Quality. Accurate Testing.

AW Dyno offers a wide range of top-quality engine dynomometers for your engine repair needs – big or small. Our focus is accuracy and high-quality. All parts are manufactured in-house at our state-of-the-art manufacturing plant. In addition to superior quality, all AW dynos include access to our on-site technicians as well as our traveling technicians. We understand in order to excel in your business, you need expert equipment… as well as expert help on hand.   

Which Engine Dynamometer is right for your business?

I-SERIES

AW  I-Series Dynamometers excel at providing high torque loads at low RPM ranges, making this series of dynamometers an excellent choice for diesel engine testing as well as other applications.

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ECB SERIES

These engine dynos allow for ease of testing as they offer the advantage of dissipating heat via air-cooled fin technology. These engine dynos allow for minimal HP testing

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WATER BRAKE

These engine dynos allow for ease of testing as they offer the advantage of dissipating heat via air-cooled fin technology. These engine dynos allow for minimal HP testing

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What they're saying

Rick Engquist Jr.

President/CEO - Engquist Tractor Service

We purchased the A&W dynamometer new in the early 1990’s. At that time we had a supply agreement with Deere & Company engine works division in Waterloo, Iowa.  In addition to our normal production of all makes we were building and performance testing the Deere eight cylinder 955 CID engine. We have consistently remanufactured over 350 engines annually since purchasing the A&W I-600. It has performed above expectations and when service and maintenance were required the staff at A&W were at the ready to resolve any of our needs quickly. We have recommended this dyno to several of our friends in the engine rebuilding business and they have purchased  A&W dynamometers and are still our friends.