If you are looking at the Good Sam ESP Gold policy, we list all parts that are not covered (exclusionary coverage). If you look at the list of excluded components, you will notice that they are maintenance items like fan belts, hoses and spark plugs, things that you will replace in the process of maintaining your RV. The list of covered components is much longer. If you request a quote for our Silver policy, it lists the components that ARE covered, (inclusionary coverage) and you can see it is a much longer list. You can call one of our RV specialists to review what is and what is not covered at 1 877 841-8522.