Hi Jimmy, I'm glad to assist you. No need. Simply install the a/c condenser once you receive it, then begin the process of charging the air conditioning system with freon after doing a thorough vacuum or cleaning process. It is guaranteed to fit the 2014 to 2018 Chevy/GMC 1500 6 cyl 4.3L. Grab our price-cut offer and click the link below to buy it today. Happy shopping! https://www.carparts.com/a-c-condenser/csf/csf10694?can=cpje1043_CSQA_20240609

Hi Lorilou, There are many reasons why air conditioning may not be working properly on your vehicle. When looking for the reason, you should always start with the most obvious cause, low refrigerant level in the system. A clogged or leaking condenser can be the reason for air-conditioning not working properly. Be aware that working on an air-conditioning system can be dangerous because of the high pressure the system is under and the environmental laws that govern refrigerant. Consult your mechanic before you attempt it.

Hi Kevin, I'm glad to help you out. Unfortunately, it doesn't. But you can easily get a seal and o-ring set for this condenser at the local part stores around your area. I hope this helps, and if you're interested in this part, you can click on the link below for direct ordering to take advantage of our ongoing sale and limited stocks. Happy shopping. https://www.carparts.com/a-c-condenser/csf/csf10694?can=CPAE1047