Parts identification question

Okay, here's the list of part #'s:

03431154
03420648
3420585
03730988
3671424
3454512
03788023
2906608
2906605
2507112
3488623
03744121
2953095
02953287
2835834
3671420
3755582
3747092
3635913

I really appreciate your help. We are in no hurry, take your time!