Hello, could you help me identify the correct radiator for my car. I have a 2000 Chevy Venture (3.4L v6) which has a bad radiator and I wanted to get it replaced asap. I checked on rockauto.com and saw that they are offering two versions of the radiator. One has a 5/8" radiator core and the other has 1" radiator core. I am not sure which one I should get. Does anyone know what size is the correct one for the Venture of this 2000 model year?

I was hoping to buy one from the local GM dealer, but the staff there told me it has been discontinued, so I asked him if he can give me the part# so I can check online, He quickly covered the computer screen and told me store policy does not allow part# to be given out. I guess it will affect their new cars sales volume if people can continue to service their vehicles.
Anyway, any help is appreciated. Thanks in advance

 

That's typical. Measure the existing core, probably 5/8". Go back with what is in it.

 

The ones that say 1" core say 5/8" core when you click on info. Also the heavy duty say 5/8" core.

 

I did as kevinpk said, and measured it with a caliper, it appears to be a tad over 5/8", so it's unlike to be a 1" core. I will go and order the 5/8" version instead. Thanks everyone!

 

I had that option with my 96. The only thing that might not allow a 1" core over a 5/8" is, physically will it fit? Mine with a/c is/was a 5/8"

 

Hello .Radiator for your Chevy Venture, see the link....https://www.wholesalegmpartsonline.c...category=19395