It should be 3125505. Its listed as Increased Cooling for your truck. An upgrade from the standard radiator. Core 2 in thick, 19 11/16 in wide.
Champion Radiator
CC4754EbayR&S, As jimgmc mentioned in his recent reply quoted above, suggest you look at his indicated GMC specific 6 cylinder radiator that goes by Part#
CC4754. One number different than your linked
CC4854 and different application list in the ebay ad.
Hopefully that may solve the confusion??? No worries, we are here to help!

BTW - If you want it to look more like the original, many folks just spray paint black. For more particulars on doing that you might want to
Search the Site for previous conversations on painting radiators.
