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Identifying original radiator vs replacement

You should have a
DP
CD

On the top of the radiator if it is mopar. I believe it stands for dodge, plymouth, chrysler, desoto. The P will be really long.
 
by the part number stamped on tank, or soldered on tag
Once you look at enough real parts you know.
 
The part number, 2276844 is on the soldered tag on the tank. This is correct for a max wedge. There is also a two letter code, AB.
 
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