Change oil pump while replacing pan gasket

Krooser said
I rebuilt my 3406 CAT at 1,918,000 miles and we reused the original oil pump. Shop said it was still perfect so....

That said I've reused dozens of oil pumps but only from engines that showed some semblance of maintenance. Those, crusty deals always got a new pump.
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Show-off LOL. Diesel pumps seems to be quite a different animal..... I'm alwasy impressed when one of our CTD's picks up cold 15W40 at startup and there's full pressure in 1-2 seconds.