Heater core bypass adapter size

[Coadster32]

Looking to temporarily bypass the heater core. I know the hoses are 5/8" and 11/16". All of the bypass systems I see are for 5/8" and 3/4".

Is this what everyone is using, and just making it fit?

 

[cpwolf]

Looking to temporarily bypass the heater core. I know the hoses are 5/8" and 11/16". All of the bypass systems I see are for 5/8" and 3/4".

Is this what everyone is using, and just making it fit?

View attachment 516692

I used that Dorman, and in Texas, just been able to wear a jacket. Need to get this HC replaced

The Dorman fit perfectly

 

[joelachr]

I used 5/8” and 3/4” sizes and didn’t have any trouble fitting it. It’s been fine for about a year so far.

 

[Coadster32]

Just to follow up for others...this did work without leaking.