fuel pump update x15

[SquareOne]

(06-30-2022 )marek4792 Wrote:  For an X15? they have two heads/plungers completely different beast from the older single head style.

Marek4792, been a min since this thread but I recently just bought a 2018 LT with the x15 Efficiency series. Cruising through some info about rebuilding the pumps and came back across this thread. Aside from the line running to the top of the fuel pump head, the pump (on the efficiency series at least) looks to be very similar to the CM2350 for those interested.

Originally in this thread I believe it was hard to obtain the parts to update the X15 fuel pump. Maybe that was the higher series of engines? There's a TSB from a couple years back mentioning the roller part numbers needed when purchasing the short block service kits and the part number for that is the same as the older cm2350 (part #4359134). Again, this may only apply to the Efficiency Series and not the other 2 as my understanding is the pump are very different.