I had a pinhole in the radiator of my 93 Daytona 2.5L TBI, was losing several ounces of coolant a day. No puddles, but pinhead-sized droplets found on the engine. No siphoning of coolant back from the jug was happening, so there was a hole or air leak somewhere.
I ordered a new Mopar radiator from my dealer, took 4 days from WI to MA. Amazingly, they had 38 of them in stock. They quoted part number 4401968 as superseding the 4401969 listed in the parts book. 1992 is a -968, 1993 shows a -969. It was $200 and I did it through them because I have found that the aftermarket ones don't fit - the flanges don't line up, or the speed nut clips don't fit over the 'too-fat' plastic flanges.
So I got the radiator Saturday, it all looked fine. Removed the old one. I had to break the bolts holding the top of the radiator to the bulkhead, despite using lots of penetrating oil in advance. Bought new bolts and clips at Autozone.
The condenser is in great shape and the A/C holds a charge. I tried to fit the new radiator in, and the bolt holds would NOT line up with those on the condenser. I tried for over an hour. The radiator flanges were set at the wrong height. The condenser has rubber bumpers on the bottom which fit into horizontal flanges on the radiator. Those flanges in turn have bumpers that fit in the radiator bulkhead at the bottom. What I found after MUCH grief is that the condenser had to have its bumpers placed against the radiator panel directly, instead of the holes in the radiator flanges. Then the radiator was positioned normally, and I could get the bolt holes lined up. Not the best way to dampen vibration, but neither unit would move when shaken.
I also noticed that, comparing the old 1992 radiator and condenser to what I found in the 1993, the (original) 92 condenser is serpentine flow and 1 1/4" thick. The condenser I found in the 93 is parallel flow and only 1" thick, with dual rows of smaller tubes. I know this is better for my R134a conversion, but the surprising thing is the part number references:
1992:
condenser 4638126
radiator 4401968
1993:
condenser 4638126
radiator 4401969
Same PN for the condensers, but they were physically different. Did someone put a newer condenser in the 93?
So, is the dealer correct? The 1992 radiator also would not line up exactly against the 1993's condenser. The 1992 was a 4401968 and did fit exactly with the 1992 condenser. Should I have had the 4401969 radiator in the 93, and would it have fit? Or does 4401968 really supersede? Did he just tell me that to be able to get me a part that might work? Is the entire problem that the condenser in the car was not the original? If so, how did the radiator that failed fit the condenser?
The good news is that it fits and works, and after burping, the radiator did siphon back from the overflow jug for the first time in several weeks, and the radiator was full this morning. So I know there was a pinhole that was fixed (the hoses were not loose), and I did not waste my time and money. But I would have preferred to fit it all back together the way it was intended.