This is an electric cooling fan conversion kit for 1987 - 2004 JEEP WRANGLER TJ & YJ including Unlimited, Rubicon, Sahara, Sport, Se, with the 2.5L or the 4.0L engine. This has everything needed to convert your crank driven fan to an electric unit which will save you gas and increase your horsepower at the same time and get rid of that annoying whirlwind sound the factory fan makes, while reducing the amount of stress on your engine and your water pump. This is good for 10-15% more miles to the gallon of gas along with freeing up 7-12 horsepower and it will reduce the stress placed on the engine and extend your water pump life. This is a WIN WIN WIN WIN situation. This will pay for itself in less than a years time. Your results will be noticed your first drive and your first fill up.