How did you find this? I looked through the PDFs that seemed appropriate and no HYD part numbers were listed. Also a site search found nothing.

KD12051Z as a part number is all over the place and do not match all 3 numbers I have from the parts manual:

National® - Taper Bearing Set Part Number: KD12051Z Cup Length=0.7411

Timken KD12051Z wrong width Cone / Cup Width (In): 1.431

This is my problem... evidently the part number got 'reused' and no longer matches the original specs. That's why I am trying to match a bearing by the actual dimensions... the PNs seem useless.

Last edited by pfarber; 04/18/2014 4:46 PM.