[davegonz]

Yesterday, I caught a whiff of coolant as I exited my truck. I checked under the hood to see if anything was leaking and found that I had some antifreeze pooling around a freeze/expansion plug on the block near the turbo. Anyone have part numbers (dodge equivalents) or sizes? Ideally, I'd like to use new brass ones, but can rubber ones be used in case of an emergency?

 

[CrewCab59]

the 5.9 will work the same Cummins # 3900965 58.06mm and the rubber ones for short term.

Scott

 

[davegonz]

Thanks CC59!

 

[BobS]

Google came up with Chrysler #4797725, and said Cummins 3900965 was replaced with 3922072. No guaranteed accuracy on this. Can't find a Dorman part number for it yet.

 

[F350JOHN]

The brass freeze plugs are not quite as good IMO. They expand and contract at different tempuratures and this by itself will make for leaks. Stick with the steel ones.

 

[davegonz]

Thanks again guys.