The Business That Service Built. Barton Auto Parts understands what it takes to remain competitive in the automotive aftermarket and the company continues to grow its operational processes, efficiencies and exceptional client service. "We strive to continuously increase our service levels. We make sure that each of our employees knows their role within the company, and that each employee excels in their job, providing a service according to the values of Barton Auto Parts. While increasing our service levels has always been our focus, it has never been more important in the industry, because the clients' continue to expect this level of service.