Crawling up steep rock faces, muddy hills, or narrow trails can put a lot of stress on your Jeep Cherokee XJ 4.0L cooling system. The stock fan system on the Jeep Cherokee XJ 4.0L is an archaic design that's powered by the vehicle's engine. It adds a lot of weight and drag to the engine, sucking horsepower and torque just to get it moving. Once it does start moving, the amount of air it moves is dependent on the engine speed. If the engine isn't turning fast, neither is the fan, and there's no air moving through your radiator. That's why Mishimoto is excited to announce our 1989-2001 Jeep Cherokee XJ 4.0L Performance Aluminum Fan Shroud. This fan shroud incorporates three Mishimoto high-flow 10" electric slim fans. Each of these fans moves at a constant 950 CFM regardless of engine speed. One fan replaces the stock A/C fan, while the other two fans are free to cool the radiator. The included A/C fan jumper harness ensures proper A/C function with 1997-2001 models. The lightweight aluminum fan shroud also covers more of the radiator than the stock fan shroud, meaning your entire radiator can benefit from the increased airflow. In our testing, we found that the Mishimoto XJ Fan Shroud moved air 41.9% better than the stock fan shroud at idle and 22% better than the stock fans at 2,500 RPM. The Mishimoto fans can be activated manually with a switch (sold separately) or by our available adjustable fan controller. The Mishimoto fan controller mounts conveniently on the Mishimoto fan shroud and can be set to activate the fans at any temperature from 150F to 240F. The kit includes everything you need for installation, including a wiring harness, a push-in radiator probe temperature sensor, and an in-line NPT temperature sensor.