Originally Posted by Papa Wheelie

Does anyone have any experience with the quality of CSF radiators? Or any suggestions for a quality aluminum radiator replacement other than CSF?
I have had the following problems:
The radiators were installed in a 2008 Hummer H3 Alpha.
Radiator #1: Was installed in 06-2021 about 5,000 miles of use later, it developed a leak. A warranty replacement (radiator #2) was provided.
Radiator #2: Was installed in October of 2022. Around 06-2024 about 8,000 miles of use later, it developed 3 leaks in the inside corners of the top and bottom tanks. Another warranty replacement (radiator #3) was provided.
Radiator #3: It was installed in June of 2024. Yesterday 10-05-2025 about 7,000 miles of use later, it developed a leak on the inside right corner of the top tank.

This is very frustrating. The original radiator was in the vehicle for 13 years before I replaced it with the CFS radiator. I purchased the CSF radiator because of the reviews thinking it would provide years of service before a replacement would be needed. Well, I was wrong.

The 3 replacements were provided showing CFS stands behind and support their products. However, in my experience, the length of service quality is not there. I need a replacement radiator again, and I’m not sure what I will do at this time. Any suggestions?