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Premium Member
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1,338 Posts
Discussion Starter #1
Anyone know the sizes of the 2 primary radiator hoses?

I'm looking at possibly installing a Laminar oil to water heat exchanger, and would need to know the hose size for installation.

Thanks,
Thomas.
 

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Growing up is an option
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17,296 Posts
On my '04 the diameter is 1¼"
 

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Pontiac Fanboy
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Bumping this relic for 05/06 hose diameter. Can anyone confirm if it is also 1-1/4" (31.75mm) like the 04s?

I'm interested in replicating (ripping off) Stoopalini's Mocal Laminova Heat Exchanger setup in the future and need to spec it out.
 

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Premium Member
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275 Posts
Bumping this relic for 05/06 hose diameter. Can anyone confirm if it is also 1-1/4" (31.75mm) like the 04s?

I'm interested in replicating (ripping off) Stoopalini's Mocal Laminova Heat Exchanger setup in the future and need to spec it out.
Damn! I just had the hoses off on my 06. I'll be draining the distilled water and refilling with coolant. I can possibly get diameters then.

Edit: Rock Auto specs

Upper Hose:
End 1 ID - 35mm
End 2 ID - 39mm

Lower Hose:
End 1 ID - 33mm
End 2 ID - 34mm
 

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680 Posts
The 04's having three hoses and the sizes do change. Cross over tube and rad holes are the same but changes for the water pump neck.
 
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