Serpentine Belt for Cummins ISB 6.7L?

Register at this link Then put your VIN in and get info on parts.

If you supply NAPA with the vin they should be able to help you. I bet other auto parts stores can too.

Every B series engine has used the same belt unless it has Jake brand exhaust brake. Napa should have it or you could order get a genuine Cummins part from fleabay or Amazon.

RRE wrote:
I am looking to purchase a spare serpentine belt for my 2009 Winnebago Journey 34Y that has a Cummins ISB 6.7L CM2150 (350hp) rear pusher Diesel engine. I can't find the part model number in any of my owners manuals. Can anyone assist with this and where I can purchase one? Thank you

If you're sitting still for a bit, remove your old one and take it to Napa. Keep your old one for the spare and one you know that will fit.
Most likely you'll never need it anyway.
Never carry a new spare that's never been installed and with assuming that it will fit properly.

My 6.7 has an 8 rib belt
Freightliner # 004C/5264021
Cummins # 5264021

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.

Thanks for all of the responses.......very helpful

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.

Triker33 wrote:
Register at this link Then put your VIN in and get info on parts.

Did this......didn't show me the specific belt. I guess when you say VIN, you mean the engine......because the coach VIN yielded no results?

Also, according to Freightliner it is advised to shrink wrap and vacuum seal your spare filters and belt. I carry a new belt as well as filters, the filters will get used at the next service and replaced with new again.