Auto Parts Chain is a term used to describe a business that specializes in selling automotive parts and accessories. Two of the most well-known Auto Parts Chains are NAPA and PEPBOYS. NAPA stands for National Automotive Parts Association and has been in business since 1925. PEPBOYS, which stands for The Pep Boys: Manny, Moe & Jack, has been in business since 1921. Both companies offer a wide variety of auto parts and accessories, as well as services such as oil changes, tire rotations, and brake repairs.