Radiator number

As a kid I got rid of the original radiator (replaced with Kragen replacement many years ago), and I can not seem to find the correct number radiator to look for. My Mopar shows 70 and 72 but not 71. Mine is a 71 duster 340 w/4-speed. Any help is appreciated. Owned this car since 1977.

GG's "white book" shows 3 1971 a-body 340 radiators

3443975 - auto & manual - NO a/c
3443976 - auto & manual - Max Cooling
3443977 - auto & manual - a/c

the last 2-digits are shown in the middle of LINE #3 of a broadcast sheet

Thank you very much!