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

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Old 11-12-2012, 12:20 PM
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Default 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?
Old 11-12-2012, 12:33 PM
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i used 5/8 and 3/4 all mixed up...
Old 11-12-2012, 12:36 PM
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Corey, for answer, contact Redneck Engineering outta Mississippi.

Oh, I see they already posted up.
Old 11-12-2012, 01:13 PM
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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.
Old 11-12-2012, 01:14 PM
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I have used 5/8 on all of my stuff.
Old 11-12-2012, 01:15 PM
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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..
Old 11-12-2012, 01:18 PM
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Originally Posted by nonnieselman


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...
Old 11-12-2012, 01:19 PM
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Originally Posted by fastnblu
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.
hmmm nope i did not get them.
Old 11-12-2012, 01:27 PM
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Originally Posted by nonnieselman


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..
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.

Corey, PM sent.

Last edited by fastnblu; 11-12-2012 at 01:54 PM.
Old 11-12-2012, 02:11 PM
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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.


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