Heater Core Hose size, is it 5/8 or 3/4?
 

I gotta reroute my heater core lines are they 5/8 or 3/4?

i used 5/8 and 3/4 all mixed up... :D

Corey, for answer, contact Redneck Engineering outta Mississippi. :redneck:

Oh, I see they already posted up. :P

Corey, I sent u a couple texts, does that help?
I've got a box of hoses at home, but won't be home for quite some time. And I have both sizes too. If I had em, I could verify to rule out, but 5/8" is it IIRC.

I have used 5/8 on all of my stuff.

:D

ive used both.. but cant remember which way i adapted it to..

right now i have it goin to the passenger firewall and looping it by the coolant res and under the air box so it stays away from the turbo and down pipe..

Yep that is my plan too...

hmmm nope i did not get them.

You're as bad as me, I hadta go out in rain & look. I couldn't remember what I had changed on my Trick Tank to intercooler pump. I knew I also had 5/8" & 3/4" on there. :sunot:

Corey, PM sent.

I unhooked my heater core and ran my w/a water thru it during the summer.. then changed it back to where it goes to my passenger fender.. so ive changed it a few times.. just cant rem what all fittings and adapters i rigged to make it work.

I got 5/8" hose but haven't installed them yet, so I can't confirm that it's the correct size.

I'm 99% it's 5/8".
If Corey responded to his PM's, he'd have the info. :punch:

One of them is completely 5/8"

The other one is that Y piece...from the pump to the y is 3/4", from one end of the y to the heater core is 5/8" and from the other end of the y to the coolant tank is 1 1/16 I believe.

Does the 5/8 hose going from the Y to the heater core come out of the Y? I tugged on it and it seems firmly in place, so I bought a 5/8 hose mender fitting instead.

Yes. 3/4 on the single side, 5/8 and 1 1/16 on the split end.