Ty, Cummins would be able to tell if the fuel pump was replaced at a Cummins dealership. If they pit it on the computer it will tell what codes have been thrown. My stop engine light came on 3 times and deregulated once. The computer said it had thrown that code 71 times. So had been that way when I bought it. I had owned it for 3 years and driven it 8k miles. As for the cosmetic issues people are pointing out, it is 17 years old. NADA seems low but a good starting point. Most of that age are more than the asking price of the one you are looking at. Good luck.
