Complete air conditioning and heating system for Jeep CJs with a 258/4.2L engine. This kit is only for the California Serpentine model Jeeps that came with the serpentine belt drive and not the V-belt. You must have the corresponding bracket on your motor for our compressor bracket to work. Please look at the 3rd product photo. If you do not have that bracket our bracket will not work. This is a complete air conditioning kit that will add a/c and heat to a CJ. If you're CJ has a faulty heater, or no heater this is the kit to replace all the old parts under the dash. The kit requires the removal of the entire heating system that is behind the dash. The kit is designed to work with R-134a refrigerant. The defrost is a diffuser we add to the evaporator / heating unit that allows the duct hose to run to the original defrost outlets. The kit includes: brand new compressor with oil, and clutch assembly, Parallel flow condenser , Oring drier, Compressor bracket with bolt kit, belt, pulleys, and directions, High low pressure switch, Evaporator unit with heater, mounting hardware, controls, heater control valve, and expansion valve, A/C hoses, All necessary hardware, for installation, Directions. The a/c and heater system we offer is designed by Air Parts and is manufactured in Ocala Florida. The kit is very simple to install. The kit can be installed in one day, and includes all the necessary parts except the refrigerant to charge it, and the heater hoses. This a/c system is the most complete available in the aftermarket, and is guaranteed to be the highest quality. Please keep in mind that the under dash is a universal style unit that may require additional modifications to the brackets to secure it under your dash. If you are uncomfortable with this please let us know and we can recommend other alternatives. If you do not have the factory fan shroud it is highly recommend that you install an auxiliary condenser fan. We have those listed for sale as well. For an additional $50 you can upgrade the compressor to a genuine Sanden compressor manufactured in the US. Jeepair is a division of Air Parts, Inc.. Air Parts is an a/c manufacturer, importer, wholesaler, retailer. We rebuild compressors, manufacture a/c systems & hoses, and resell to many other companies. We are the source for all Jeep a/c parts and systems. All kits ship via UPS Ground and require a signature for delivery. *Free ground shipping on this a/c system in the lower 48 States.