Protection against #1 cause of transmission failure. Performance-rated for cars, vans and light trucks up to 28,000 lbs. This is a must for heavy duty applications, from towing to racing, but is recommended for even daily driven vehicles. Heat is what kills an automatic transmission. If you want to extend the life of your transmission and avoid or prolong a costly rebuild, this is very cheap insurance. All parts are included to mount and plumb this cooler. This cooler comes with a manufacturer's limited lifetime warranty.