Most transport parts that use an electrical connection are subject to corrosion, due in part to extended use and certain types of weather. Rust builds up when electricity runs through a conductor. Little bits and particles sometimes get stuck on the way through, and if enough rust collects, the debris can actually prevent the current from flowing. It is very important to protect against the build-up of rust and the breakdown of your machinery. You can keep all your electrical connections clean and safe through regular cleaning and replacement of any worn parts.