This is the one I installed on my 2000 Jeep Wrangler 4.0L
OEM isn't always the best! My OEM radiator had a very small leak. So small it wouldn't even drip, but I could smell it! So I brought my Jeep to a radiator guy, (not a mechanic or an auto parts store) a guy who repairs radiators. He told me my leak was a common one for these radiators. The leak was coming from the gasket between the plastic bowls and the aluminum core. Very common and was really not worth fixing. I could buy a new OEM radiator for the same price or less. But warned me that the same thing WILL happen again sooner or later. He told me that if I didn't want to deal with this problem again that I should buy an all welded all aluminum radiator from Northern Radiator.
https://www.northernfactory.com/Product/205087
Yes it was more expensive but we'll worth it. It has twice the cooling capacity, equal to a 4 row radiator. Now I've never had a problem with the OEM keeping my engine cool, but I'm not going to turn down extra cooling capacity. I installed this a couple of years ago and have had no problems. I also installed a bug screen behind the grill to help protect the radiator. The reason he was promoting Northern was that some all aluminum radiator companies will use rubber, plastic, etc. to seal the bowls to the core that will crack over time from heat and leak. but Northern uses aluminum to seal theirs. They can take a lot more abuse. This is the same kind of radiators that are used on off road equipment like front end loaders.