We live full time in our RV and travel the entire country, we have used Cummins to service or motor home in every part of the country with no issues until we had our annual service done at this location, when we made the appointment we told them that my MH has two fuel filters and also gave them the part numbers, on the day of the appointment I reminded the service writer "Gerry" that we wanted both fuel filters replaced! I guess I should have looked before we left? The next day I looked a found that they had only replaced one of them? The service writer did not do his job!