Well, an EGT probe is not a stock part. It is an aftermarket accesory that can be purchased at any diesel performance shop. No part #, just call Geno's Garage or Summit or some performance shop that sells gauges and I think the kit should include a 1/4" or 1/8" NPT boss fitting that will be installed in the manifold. My Banks kit came with all the necessary hardware, but not sure on other companies.