CSK Auto, Inc. is the largest retailer of automotive parts and accessories in the western United States and is among the top five automotive aftermarket retailers in the nation.

CSK Auto, Inc. operates over 1,100 stores in 19 states under the brand names: Checker Auto Parts in the Southwest, Rocky Mountain, Northern Plains, and Hawaii; Schuck’s Auto Supply in the Pacific Northwest and Alaska; Kragen Auto Parts in California.

As a specialty retailer,CSK Auto, Inc. primarily services the do-it-yourself customer, with increasing emphasis on the commercial (do-it-for-me) business. The Company sells a broad selection of national brand name and private label automotive parts and products for domestic and imported cars, vans, and light trucks. Many CSK stores offer a variety of free customer services every day, including electrical testing of batteries, alternators, and starters, and recycling collection for used motor oil and batteries.

Headquartered in Phoenix, AZ, CSK Auto, Inc. has experienced tremendous growth in the past few years.