The Bronco and Ranger's cooling system is fine for some drivers, but those who are pushing the limits of these rigs will put a strain on the factory system. However, it's not just those with added power and hardcore off-roaders that can benefit from an upgraded cooling system. Many overlanders, campers, and more casual off-road goers add a lot of weight and drag to their rigs. Accessories like Roof mounted tents, campers, spare tires, fuel cans, and/or towing can put a lot of extra strain on both the engine and cooling system. An upgraded radiator can mean the difference between non-stop action, and having to give your engine a break to recover from overheating or heat soak.