Automotive Engine Rebuilders, Inc. was started in 1985 right here in Waukesha, WI. In 1998, Engine Rebuilders moved to its new 6,000 sq. ft. facility on Arcadian Avenue. In 2007, AER expanded to include a new division: AER Trailer Sales & Service. In 2016, AER expanded once again to include another division: AER Auto & Truck Repair. Now, in 2018, we are proud to offer SE Wisconsin some of the best engine rebuilding, trailer sales and service, and now, auto and truck repair.