904 vs 727 Cooling Line Fittings

I recently decided to go with a braided stainless AN cooling line set from an eBay supplier. I could not locate a set specific for a 904, so I ordered the 727 kit, figuring it did not make a difference. The kit came with adapters for the trans and the radiator. There were two fittings with 1/8" MPT male ends, and two others with 1/4" MPT ends. I've only dealt with 904 automatics, but I thought 727 and 904 cooling line holes on the trans were the same size...1/8" MPT. Same for the radiator. I thought all radiator connections were 1/8" MPT. Am I wrong, or did the company make a mistake when they bundled the fittings together into a kit?