Hello, I recently bought a 2012 Peterbilt 386 with a CM2250 ISX engine. I know some of the history on the truck and the high pressure fuel pump has never been updated. I have removed the pump and partially disassembled it to find that it does have the ceramic plungers. I had my Cummins dealer price my options. They said there are no kits available anymore to update the pump and that a new pump ($5000) was my only option. Does anyone here know if this is true? Are there any other sources for a new or reman pump other than Cummins? Are kits still available to update old pumps? Thank you!
2012 Cummins ISX fuel pump
Discussion in 'Trucks [ Eighteen Wheelers ]' started by LLgraintrain, Apr 11, 2021.
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Verify with your ESN, but this is P/N's for steel B/P assy and updated tappets.
Would need two of each and gaskets and seals.Flint1, BoxCarKidd, QUALITYTRUCK and 1 other person Thank this. -
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It's no joke when those plungers break. Check engine lamp came on, and I had enough time to say to myself "WTF". Truck quit at highway speed and would not restart. This was on a cummins Isc, but I believe they are similar. Tappet rollers were destroyed too.
spsauerland and QUALITYTRUCK Thank this.
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