About SIM

Transit Auto offers the most comprehensive and highest-quality replacement kits on the market. Thanks to our cutting-edge AI, in-house product team, and proprietary fitment data, we are able to build and deliver the most accurate kits on the market. All our kits include the highest-quality parts on the market, sourced directly by Transit and its sub-brands. Backed by over 50 years of experience and with in-house quality assurance, every customer can purchase and drive with peace of mind. Transit Auto is the largest kit supplier, with over 100,000 kits, and the only supplier to provide the true picture of the kits and the complete buyer's guide. Whether you are a Do-It-Yourself enthusiast, a Mechanic, or a Garage, we have the right kit for you.