It doesn't matter if your engine is brand new or has had a long service life, there are contaminants like casting sand leftover from the manufacturing process, metal shavings, rust, and mineral deposits floating in your coolant that can diminish the heat capacity of your Jeep's cooling system. Over time, these dangerous deposits can even cause damage to your water pump bearings and small passages. The CNC machined billet 6061 aluminum anodized construction filter boss attaches to a supplied bracket, which mounts to factory holes so no drilling is required. This kit includes all fittings needed for installation. The filter can be easily unscrewed for replacement. We recommend replacement of the first filter at 500 miles with replacement of the second and third filters is at 3,000 miles each. After 3 changes, filter replacement can be done once a year. The silicone hoses fittings are pre-assembled for simple, leak-proof connections that factory tested at twice the recommended radiator cap pressure.