The Jeep Grand Cherokee SRT - 8 is a versatile and powerful vehicle that requires a cooling system just as powerful. That's why Mishimoto has developed a performance aluminum radiator for the 2012 Jeep Grand Cherokee SRT - 8. The Mishimoto 2012 Jeep Grand Cherokee SRT - 8 Performance Aluminum Radiator is designed to keep your 6.4L Hemi cool from the street to the track, and everything in between. Our radiator increases core volume by 66 - percent and coolant capacity by 95 - percent over the stock radiator for improved cooling capacity. The 66 - percent thicker core yields a 45 - percent greater fin surface area to carry away more heat and keep your SRT - 8 running cooler. Like all Mishimoto aluminum radiators, this 2012 Jeep Grand Cherokee SRT - 8 radiator is built to last. Our all - aluminum design is precision TIG - welded with CNC - machined mounts for superior durability and a direct fit without any modifications. This radiator is also backed by our Mishimoto Lifetime Warranty for a lifetime of powerful cooling.