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Re: F550 diesel Fuel injection pump replacement
Posted to HD/Fleet Forum on 4/5/2025 1 Reply

So we've seen the failures from 80k to 450k. Cheap insurance would be to do the S & S filter kit. When the CP4 fails you only need to change the pump out and not replace all the injectors, rails, drop the tank, etc.

The other option would be doing a DCR conv... Login to read more.

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