During thanksgiving of 2010, I hired a mechanic and owner of a small mechanic shop and road service to rebuilt my engine on my semi truck. We agreed only genuine cummins parts would be used. It took an extra week than what he originally told me, because he was waiting for the parts from cummins. I have had several problems and leaks since then. Now less than 2 months later, I had to stop in Peterbilt Dealership because the truck was running bad. After taking the engine apart, the parts that were used on the first rebuild were not genuine cummins parts. The piston came apart and metal went through the engine, not only damaging everything that was damaged in the first place but also a turbo, cam and other parts. I have been in a motel for two weeks this time, and am about 20 grand now.I should file in the state that the first mechanic did the work in? I live in Phoenix, Az but the work was done in California by the first Mechanic that caused the problem. My truck is in the shop now in Virginia being repaired now by the Dealership.