radiator

I was perusing parts recently to see if there was anything else I wanted to replace once I put the H3 down for the season for a refresh, when I noticed something peculiar. It turns out, the GM OEM radiator is listed as having a core thickness of 1.06", which supposedly the majority of...

Hey fellow H3 lovers! Currently working on a total rebuild of our 08 3.7L Hummer H3. Reaching out to all those left fighting to keep the H3 around for the long haul! Here’s a bit of our journey, I appreciate anyone willing to read and send specific experienced suggestions. I’ve had a 08 H3...

Well was a little bored today so I cut open my old OEM radiator to look at the transmission cooler. Wow that thing is small (that's what she said). I understand thermal dynamics but the darn thing only holds a few ounces of liquid.

For $0 cash and I'll pay the shipping. I need one for an intercooler mockup.

Better late than never in joining the party, right? Reloader and I installed a transmission cooler in my H3 today, about a week after he did one in his. One of his primary concerns was that maybe he bought a two small of a cooler and after a bit of research, it appears that the 14,400 BTU ones...

This procedure is essentially the same for the 3.5, 3.7 and 5.3, though I've been told the 5.3 does not have the slip shroud on the fan shroud, and that the cooling fan must be removed. Note that pictures from two different radiators are used in this post. Remove skid front splash shield Drain...