General Questions for Cummins X15

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1. imap sensor ( the one on the intake manifold) 2.exhaust pressure sensor (the tube coming out of the exhaust manifold goes into it)
3.EGR differential pressure sensor (on the EGR crossover tube)
4. EGR temp sensor (also on the EGR crossover tube)

Replace these sensors about every 2 years with GENUINE CUMMINS PARTS THAT YOU BOUGHT FROM THE DEALER. The ones you find online that are cheaper and look identical right down to box they come in are Chinese fakes.

That "box" above your air compressor is part of the crankcase vent system. Cummins says it's maintenance free and there is no filter inside it.

In regards to that coupler on the turbo inlet that the air compressor pulls air from, that problem was supposedly solved a few years ago with an updated connection that has an o-ring in it. So I'm sure your brand new one has the updated part or a better set up altogether.

I'm guessing you have the "performance" series judging by the hp level. If that's the case you should also have the fuel pump with the dual line head. If so you shouldn't have to worry about the fuel pump needing rebuilt every 400k miles like the other pumps do. Allison at Haggs said she never saw one of those come apart. Thats good because they can't be rebuilt anyway because cummins doesn't sell individual parts for those pumps, you have to buy the whole pump.