Puzzled by the extra digits on our parts numbering scheme?

You asked for more parts--We've got 'em!

We're implementing a new parts numbering system to accommodate our expanding product line. The numbering scheme for our new parts is increasing from four digits to six digits--providing plenty of numbers for future new parts. This is an expansion to our existing six digit scheme for the Cummins, Navistar and Detroit Diesel product lines. Please continue to use existing part numbers when ordering. Only new PAI parts will use the six digit scheme.

We're integrating this system immediately, so take note of the new numbering scheme when crossing OEM numbers on our web site or through customer service. And look for additional information coming soon about our parts numbering scheme as we strive to improve your parts ordering experience.

To coincide with recent format changes our Catalog Updates (a.k.a. Stay Current) now reflect changes and updates to specific catalogs.