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HI! I am new Kappa owner - 2008 Sky Redline Carbon Flash 5 Spd
I want to replace my radiator and I'm trying to figure out what's the difference between radiators
Is there 4 different radiators? GXP Auto , GXP Manual- Base Auto and Base Manual?
Are they interchangeable?
Does on have more cooling area than the others?
I figure the Auto has a built in trans cooler, but can this also be used on the manual and just plug that opening?
Does the GXP have a bigger cooling core than the base?
Are all the connections the same?

Thanks!
Mike
 

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There are actually 2 different radiators. The one for the automatic has the transmission cooling lines fitting and must be used if you are replacing one in a automatic. If on the other hand it is a manual transmission either radiator will work as you don't need the outlets for the cooling lines but the automatic radiator can be used in a manual. There is no difference between a GXP or the base model as far as the radiator but there is a difference in the cooling fans depending if you have the 2.0 or the 2.4.

The AC condensers are all the same in each car.
 

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Helpful response Hoosier. I expected as much but I'm surprised to see that the radiator part number is different from 2.4 to 2.0.

For the manual transmissions I'm seeing:
2.4 - ACDELCO 21720 {#19130434}
2.0 - ACDELCO 21718 {#19130432}
 

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Old post, I know. Answer was never really given.

Rock Auto has details for each part number. GXP core is .95" thick, base is .63.
 

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06 solstice sliver&356Pcar.dirtbike,4wheeler
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thats what i was fuguring, bigger core. I almost got one of thsose for my base coupe, but didnt know if everything else was the same so I just got the new$90 base raid& condensor & fan for it.
 

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06 solstice sliver&356Pcar.dirtbike,4wheeler
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so Im assuming from what hoosier said that both fit.so there interchangeable. I did contact a seller they said the gxp has a 1" core single row., another seller says 5/8" thickness for the base witch is about what mine is. I already bought a base radiator but if the gxp fits and is truly almost 2x the thickness I will buy a gxp radiator for this coupe since it does not have a oil cooler like my 06, it's also automatic.
 

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06 solstice sliver&356Pcar.dirtbike,4wheeler
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update!! I just went out and opened the box..it's the thick core!!! $81.25 free shippen ( fleebay)and better cooling!!! so I dont need to order another one...unless I may want to have one for my 06....crap, more things to think on in my empty head ratteling around like bolts in a tin can.
 

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Solstice 2006 red. 5 speed 82000km (51k miles)
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There are actually 2 different radiators. The one for the automatic has the transmission cooling lines fitting and must be used if you are replacing one in a automatic. If on the other hand it is a manual transmission either radiator will work as you don't need the outlets for the cooling lines but the automatic radiator can be used in a manual. There is no difference between a GXP or the base model as far as the radiator but there is a difference in the cooling fans depending if you have the 2.0 or the 2.4.

The AC condensers are all the same in each car.
Q: I have a 2006 Solstice 5 speed manual transmission. I just receive a new radiator with those 2 holes fitted for automatic. Do I just install it and leave those two holes open?
 

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Q: I have a 2006 Solstice 5 speed manual transmission. I just receive a new radiator with those 2 holes fitted for automatic. Do I just install it and leave those two holes open?
As a general principle I would plug or cap them, but you can leave them open.
 

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Solstice 2006 red. 5 speed 82000km (51k miles)
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Q: I have a 2006 Solstice 5 speed manual transmission. I just receive a new radiator with those 2 holes fitted for automatic. Do I just install it and leave those two holes open?
As a general principle I would plug or cap them, but you can leave them open.
Thanks for your input. I am no mechanic, i'm in IT. So my question is (dont laugh :) : will coolant fluid come out from these holes?
 

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Thanks for your input. I am no mechanic, i'm in IT. So my question is (dont laugh :) : will coolant fluid come out from these holes?
No. Those holes are for transmission fluid to flow through, so they are isolated from the coolant.
 

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No. Those holes are for transmission fluid to flow through, so they are isolated from the coolant.
Would this circuit be able to be used for engine coolant? plug a couple T fittings to the main piping and make coolant flow in there. Or is this a stupid idea?
 
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