Results for "cummins ism"

Planning to buy my first diesel pusher and I'm completely clueless whether 142,187 miles on this 2005 Cummins ISM 500HP is considered high mileage. The coach is equipped with a Cummins ISM 500 horsepower engine paired with an Allison MH 4000 6-speed transmission. While I've done some research on these powertrains, I'm getting mixed opinions about what constitutes "high mileage" for this particular combination.

Some people are telling me that anything over 100K miles is getting into risky territory, while others say these commercial-grade engines are just getting broken in at that point. I want to make sure I'm not walking into a money pit, but I also don't want to pass up a good coach if the mileage number is scaring me unnecessarily.

What's the realistic lifespan expectation for the Cummins ISM 500HP and Allison MH4000 combination? Should 142K miles be a red flag that makes me walk away, or is this actually considered moderate mileage for these heavy-duty components? I'm trying to determine if I should focus more on the maintenance history and overall condition rather than getting hung up on the odometer reading. …more

This scorching desert heat finally killed my 2001 Country Coach Allure's radiator fan, and now I'm completely lost on where to find a replacement. I know these aren't your typical RV parts you can grab at Camping World, but I'm not sure if I should be hitting up truck stops, RV dealers, or what.

Anyone know the best places to source these fans? I'm guessing it depends on what chassis and engine I've got under there, but honestly not sure what info I need to gather before I start calling around. Also wondering if this is something I can tackle myself or if I should just bite the bullet and pay someone to handle it. …more