Cooling system pressure test adapter

[firefighter_2000]

Chasing a small coolant leak and I can’t find the correct adapter for the cap. I’ve found two different gates adapters that are supposed to be correct. Does anyone have a part number (for any manufacturer) that’s correct for our trucks?
Also, about what’s the max pressure our system will run?
Thanks
Craig

 

[petersonj]

I usually look at the pressure rating on the cap and then test the cooling system at no more than 120%. For example, if a cooling system had a cap rating of 15 psi, I would test the system at no more than 18 psi.

Hope you find the right adapter.

- John

 

[Cummins2014]

Chasing a small coolant leak and I can’t find the correct adapter for the cap. I’ve found two different gates adapters that are supposed to be correct. Does anyone have a part number (for any manufacturer) that’s correct for our trucks?
Also, about what’s the max pressure our system will run?
Thanks
Craig

Same here chasing a small leak, I got a loaner from Autozone , they had the correct adapter .