Owners/service Manual problems of the 2007 Dodge Ram 3500

This vehicle has been maintained according to the manual perfectly and in most cases maintenance done before required. On the date above I was driving home and the vehicle lost power. Since I was 2 hours from home I had to have it towed to the local dealer. Their repair order indicates that all 6 injectors, the dpf, crankcase breather filter, thermostat, ox sensor and 2 temp sensors must be replaced. In addition, the entire fuel system needs to be cleaned out including all filters, air and fuel and oil changed and filter. The bottom line is that all this work will cost me $7500. This truck has too little mileage to need all this work. This was supposed to be the last truck I would own figuring the cummins engine's reputation. Interested in whether this truck is an aberration or is it similar to trucks with the first clean burning engine?.