Gauges for 12v 98

[Hiltiman]

Hey Y'all. I remember hearing about a guage package that mounts under the dash and, if I remember correctly, it is digital. It runs off the computer on the truck and I think it came from Cummins. Does anyone know of this? I can't for the life of me find one. Any help would be appreciated.

Thanks as always.

Scott

 

[Bob V]

I think you are talking about the Road Relay 4, I think that it has been discontinued by Cummins, and it only worked on the 24 valves anyway.

Bob

 

[bmoeller]

What Hiltman said. If it's the Road Relay that you are talking about, it only works on 24v trucks. The 12v is completely mechanical, no electronics in relation to engine operation.