Fred,
Very interesting... I had Mr. Wilman (Optima employee) send me the emails.. he sent me two. The one I posted and one other that included all the new part numbers (same battery) seeing that interstate is now selling optima under there name as well....
maybe they just need to update the website??
below is the 2nd email he sent regarding this:
Hello.
Their number is agm800DT, our number is 9004-003 aka 800u aka 34/78-1050....all the same......
Thank you for your support of Optima Batteries.
David Willman alias *****
Customer Relations Coordinator
Government and Military Sales Coordinator
303 340-7486 direct phone
800 292-4359 x 486 toll free
303 344-9905 fax
303 995-0097 cell phone