ISX15 CM2250 fuel pump timeframe?

[simon999]

You have some old style pump. Broken plunger shavings could already damage your engine..and possibly go into oil galleries to main bearings.
Newer pump is two barrels and head has only 4 bolts. I actually did update my pump at 440,000miles on my cm2350. I put video on youtube how to replace internal parts. They are much cheapier than whole pump. I spent about $120 on barrel and plunger assembly kit and $300 on new design tappets. Here is link
https://youtu.be/u0b_0_CCDiM