About Us

Family-owned and operated since 1949, A&A Midwest is known for its outstanding customer service and high degree of integrity. The cornerstones of our business model are innovation, value, quality and environmental responsibility. We always look to exceed customers’ expectations, with the highest quality products and services, at competitive prices.

As a leading “green” company, A&A Midwest purchases automotive and non-automotive recyclable scrap, helping remove recyclables from landfills.

A&A Midwest offers a vast network of professional stocking distributors across the country, all ready to make sure you have what you need and backed by A&A Midwest's six national warehouses located in Chicago, Ill., Las Vegas, Nev., Spokane, Wash., Long Island, N.Y., Atlanta, Ga., and Dallas, Texas. In addition, AAEQ has placed all inventory online for your ordering convenience.

A&A Midwest is a member of numerous automotive and recycling associations, including the Production Engine Remanufacturing Association (PERA), Automotive Engine Builders Association (AERA), Automotive Aftermarket Industry Association (AAIA), Automatic Transmission Rebuilders Association (ATRA), Automotive Recyclers Association (ARA), and Institute of Scrap Recycling Industries (ISRI).

The company is directed by Scott Stolberg, president and CEO, who heads up the company’s operations in North Las Vegas, Nevada, and William “Billy” Stolberg, president and COO, who runs the company’s Chicago based warehouse and processing facility.

If you are having trouble finding a certain engine part, new used or rebuilt, talk to our staff. New products are always becoming available because of requests like yours. We look forward to helping you.

Our Core Business is Cores!

For over 63 years, A&A Midwest Cores has been the leader in supplying engine, transmission and internal parts cores to engine rebuilders and machine shops. Each day we process over 500 engines at state-of-the-art facilities in Chicago and Las Vegas. As a result, we have more than 40,000 engines and transmissions and 60,000 related internal parts in stock to serve your needs. We specialize in products and parts that either make one core work in another application, or replace a hard-to-find or salvaged part.

Sell Us Your Cores

You get paid top dollar when you sell us your engine and transmission cores. For your convenience, our price lists for engines and transmissions are now available for download!

Buy Your Cores From Us

Due to our vast experience, our experts can advise you on which type of core will work best for the engine project you are working on. This knowledge has earned us the reputation as the “Partner to the Professional.” Whatever challenge you face, it's probably something that one of our experts has already solved before. In fact, the answer to your problem may be sitting on one of our shelves, right now. When you demand the best, turn to us with confidence.

Our Core History

A History of Dependable Service in Chicago, Las Vegas
It all started in 1949 in Chicago when Aaron and Alex Stolberg starting buying starters and generators after World War II. They found a niche in selling engines and transmission cores for remanufacturing. Eventually A&A Midwest expanded to include end of life vehicles processing and scrap metal purchasing and processing.

With one of the largest inventories of engine, transmission and internal part cores, A&A Midwest Cores continues to be a leading supplier source for engine and transmission rebuilders. Between its warehouses in Chicago and Las Vegas, A&A Midwest’s inventory includes over 150,000 engines and transmissions and other internal part cores.

A&A Midwest Cores provides valuable information to customers on whether new, remanufactured or reclaimed will work best for the engine or transmission project they are working on. This extensive working knowledge has helped them gain the reputation as the “Partner to the Professional.”

Our original location continues in Chicago, Illinois and has expanded to include an end of life vehicle processing facility in Blue Island, Illinois. Our location in Las Vegas was established in 1992 and the facility became a full-service scrap recycling center in 2004. Our engine parts division, EngineQuest (EQ) started in 1987, while our TransmissionQuest (TQ) division for transmission parts began in 2011.

A&A Midwest continues to be family owned and operated and is known for its outstanding customer service and a high degree of integrity.