ISX15 CM2350 injector cups

[Colter]

There is aftermarket cups and tooling to replace them, with some modification to the tools it can be done without pulling the head off. By making an entirely different attachment we pull them using a Tiger tool cylinder. Zero issues to date in almost 3 years of having it as an option however not recommended by Cummins, if the rings don't work they will change the head. There is also things within the procedure of replacing cups with the head on that require extreme care to not get debris, shavings, contaminants in the engine.

Also noticing higher cup failure rate in reman heads especially 871's, going OEM new is worth the extra $200-600 and usually the day wait