LKQ engines are available for sale online at LKQOnline.com and LKQCorp.com, as of April 2015. The former site deals with everyday cars and trucks for commuters, while LKQCorp.com handles trucks with multiple axles and other commercial or agricultural vehicles. LKQ does not manufacture engines; it locates original parts, including engines.
The selection at LKQOnline.com includes dozens of the most popular car manufacturers, but the search feature limits cars to 1975 or newer. Most of its engines are for cars made after 1990.
The LKQCorp.com heavy-truck selection includes engines for major manufacturers such as Caterpillar, John Deere and Volvo. Search results include listings of available engines and their details, including horsepower, pullout type and mileage.