Cummins ISL Thermostat installation- Cummins Part 5273379- Motorhome overheating? New Thermostat!

[@TomOHara72]

thnx. show it running, no leaks? show gauge?

[@RVshopandchef-Fun]

Good call, I agree that would be great- but we sold it quickly and started the video after the fact. The gauges were reliable, where we had challenges was developing power under load- we had to go through a number of sensors, and also replace the fuel pump and trace that pressure back up to the engine to ensure the issue wasn't fuel delivery.

[@TomOHara72]

thnx, we have a newmar spartan cummins 400 ISL...hope this works....is there a big cylinder with the thermostat??

[@RVshopandchef-Fun]

apologies for missing the question. Are we working on the Atwood 16? The normal Atwood mixer on the side of the heater was a chrome bullet design about 3-4 inches around and maybe 4 inches tall, mounted sideways. We replaced that because of its small screen strainers and tendency to clog.