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Re: Cummins ISX 15 Fuel Pump
Posted to HD/Fleet Forum on 10/5/2018 1 Reply

The diamond like coated steel plungers solved the plunger breaking issue but it can still get broken plunger springs or tappet failures. I do not have a production date or ESN of when they started using the steel plungers but I'm pretty sure it was right befor... Login to read more.

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