Hy LevisPop, I broke down the o.e.m. numbers as best I could
121470 = 3383 Timken, and others
121485 = 3320 Timken, and others $11.25 at RockAuto
121483 = 2687 Timken, and others
119361 = 2631 Timken, and others
the o.e.m. p/n for the outer assembly 173238 = KA11020Z
inner assembly 173241 may be KA11410Z, KA11410Z breaks down into (1)17883 and (1)17830, I could only find the one bearing at RockAuto, but you may be able to find more by going to bearing sites on the internet and typing in the p/ns, hope that helps.
