Serpentine Belt for Cummins ISB 6.7L?

DSDP Don wrote:
I have a different opinion on carrying a spare. "tropical36" makes a good point, but I've always carried a spare for my coach, even when the coach was new. If something should cause the belt to come off prematurely, I'll have a spare while on the road. I do know that I have the correct belt as I took the number off the current one. Even if you can't do that, most of these belts are pretty common and I would rather have one and have a 90% chance it fits, rather than no belt at all.

I carry a spare belt, spare fuel filters and spare pins for the tow bar as a minimum set of spare parts. I have enough other parts to fix my coach and a couple others, but the minimum should be the belt and filters.

Even though you may not be physically able to change filters or a belt, they're nice to have on a Sunday afternoon. Often you can find a service truck or someone like me and any others on here who will help you change them.

Went for a replacement belt on my old coach, with the exact dimensions on the OEM cross referencing to one part number and the part number itself, cross referencing to another. I went with the former and it wouldn't quite make it, so back to the store (luckily not in Death Valley at the time) for the other, which fit perfectly. Still had the original OEM for a spare on board when we sold it.