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

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

Oh, I see they already posted up.
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Old Nov 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.
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Old Nov 12, 2012 | 01:14 PM
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I have used 5/8 on all of my stuff.
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Old Nov 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..
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Old Nov 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...
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Old Nov 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.
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Old Nov 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; Nov 12, 2012 at 01:54 PM.
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Old Nov 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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