(04-29-2020 )SquareOne Wrote: kozakvod - Thank you for posting about the parts availability. Not sure what was going on last year when I did mine, but I def couldn't get just the tappet/pump without purchasing a head assembly. Glad you were able to and that info certainly helps anyone in the future when rebuilding the pump.
--- maybe last year Cummins had too much demand on those items and saw it as an opportunity to sell the head assemblies ....who knows?
Purchasing head assembly probably not bad idea as check valves in the head going bad too by the time. I have just replaced fuel pump, rollers, tappets, camshaft, plungers were in perfect shape but pressure was leaking. With new pump pressure stays for hours.