Choose Your Engine Color for Parts

We supply parts, and provide support for all prior versions of the Green APU. However today, the only unit we sell is our latest 5th Generation Kubota Star Edition APU.

Please fill out a RUT-7 form when purchasing any products for tax exemption.

Green APU Rally USA Car with Logo and Sponsors


The same engineering expertise behind every GREEN APU auxiliary power unit powers our championship ARA Rally Car Racing Team

American Rally Association ARA Rally Green APU title sponsor

Catch Driver Patrick Gruszka and the Green APU Rally USA Racing Team at a major ARA Rally event near you!

GREEN APU Signs as Title Sponsor of the American Rally Association

The American Rally Association, the premier stage rally series in the United State, is proud to announce that it has reached an agreement with Green APU to become the series title sponsor.

The partnership between the ARA and Green APU includes naming rights to the ARA’s National championship. Starting in 2023, the national championship will officially be named the Green APU National Rally Championship.

“This is an exciting day for stage rally in the United States,” said ARA Business and Marketing Director, Jeremy Meyer. “Green APU is bringing an amazing amount of support to the ARA for the next three years. They have a deep passion for rallying and share our vision on how we can help grow this sport. They will bring valuable resources that will help us build better competition, as well as the ability to showcase the ARA to the world.”

Green APU has been a fixture in the rally community over the past two decades…


Watch the most recent video content from Patrick Gruszka and the Green APU Rally Racing Team on YouTube here. Check back for weekly rally race recaps, full updates on the team and previews of upcoming rally stages!

Conway Imports Auto Sales

The “Biggest Auto Barn in Chicagoland with over 30,000 horses(mechanical ones).” The Conway team puts honesty, integrity, and loyalty first. Their inventory of pre-owned vehicles is hand-picked by professionals with over 20 years of experience in the automotive business, and their goal is to buy the best possible used vehicle so that their customers get the highest quality cars available on the market.

Kubota Engine America

Kubota was first established in 1890 as a foundry.  In 1922 the first kerosene engine was introduced for use in the agricultural market.  Since then Kubota engines have continued to evolve and thrive around the world. in 1998, U.S. Engine Division became independent from Kubota Tractor Corp. Kubota Engine America (KEA), was then established in Lincolnshire, IL.

Rottler Manufacturing

Since 1923, the Rottler name has been synonymous with leading-edge technology. We offer a complete range of machinery for every type of engine builder. Whether you have a custom one-man machine shop, a diesel jobber shop or a high-volume production remanufacturing facility, Rottler has the right machine to suite your needs.

Precision Metal Products

Since 1995, Precision Metal Products has provided our clients with fabrication and manufacturing solutions. PMP’s robust capabilities allow us to tailor custom fit our client’s needs, and we are committed to exceeding client expectations by delivering superior and cost-effective products in a timely manner.

Action Truck Parts Inc.

Action Truck Parts has been serving Chicagoland’s truck parts needs since 2005 when they opened their first store in Bolingbrook. In 2013, Action joined VIPAR Heavy Duty as a premier aftermarket heavy-duty parts distributor and since 2013, Action has become known as one of the top truck parts distributors in the country.

Precision Turbo & Engine

Founded in 1987, Precision Turbo and Engine is one of the world’s foremost manufacturers of high-performance, aftermarket turbochargers. Precision Turbo and Engine has been a worldwide supplier of high-performance turbochargers that have set the standard for uncompromised quality and unsurpassed performance since the late 1990s.


RRS offers a wide range of FIA homologated items, such as RRS FIA suits including tailor-made and personalized driver suits, RRS FIA gloves, RRS FIA boots, underwear Nomex RRS FIA, RRS FIA bucket seats, 4 and 6 point harnesses, STILO and RRS helmets, Hans and more at low prices.

Encore Gallery

Encore Gallery is an importer, distributor, and supplier of modern, most technologically advanced porcelain and ceramic tiles, preserved moss, and other home design products from Europe with three state-of-the-art designers’ showrooms with over 100 life-size vignettes.

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