68 340 manual radiator 2898027?

I prefer to go to the source...

Not sure where your list is coming from.
The part numbers in the 65 parts book are 25## ###

Your list shows some 65 cores as having a 2898 ###



68 parts book

Looks like same "standard" radiator for 273, 318 or 340

2989028 (standard) or 2949068 (high altitude or air-conditioning)



69 parts book

65 parts book..