Power Test Dyno History

Award winning manufacturer of dynamometer products and related equipment since 1976.

olddynoIn 1976, John Petelinsek set out to improve upon the traditional water brake dynamometer. The result was an affordable, durable dynamometer with increased absorption characteristics through a simpler, deeper pocket design.

Power Test, Inc. was founded, and John spent the next 25 years focused on building his company and providing the diesel engine market with a durable, reliable product and the best customer service in the dyno manufacturing industry.

Power Test has continued to build upon this solid foundation and has grown its product line through the design, manufacture, and development of a variety of engine and chassis dynamometers, engine and vehicle controls, and the latest technology in data acquisition systems.

In 2002, Power Test acquired Stuska Dynamometers, establishing itself in the performance engine testing market. With an existing customer base of nearly 3,000 and more than 40 years of proven performance, the Stuska product line was brought into the 21st century with the addition of Power Test’s manufacturing capabilities and its expertise in data acquisition and control systems.

In 2006, Power Test purchased the transmission and hydraulic testing equipment division of AIDCO International. AIDCO set the standard for hydraulic test equipment since its introduction to the market in the mid-1960s. The product line has been expanded and refined to become AIDCO Test Systems. Through the combination of a solid customer base and attention to the needs of an ever changing market, the AIDCO name was re-established as a leader in the transmission and hydraulic component testing industry.

In 2008, Power Test moved from Menomonee Falls to the current location in Sussex, WI. In 2012, the building was expanded to accommodate the increase in employees as the business continued to grow.

In 2012, the Custom Engineered Solutions division was established. This division works with customers around the world to design and manufacture machines for their unique testing needs. The CES division draws on the technical knowledge and skills within Power Test to craft solutions and manufacture one-of-a-kind testing equipment.

A strong commitment to the growth of the business and technical excellence has enabled Power Test to be a globally prominent, one-source provider for testing power train components and vehicles.