New copper/brass rads, are they made like the old ones? Answer's inside.

this doesn't apply directly, but I had ano oem copper/brass rad with plastic tanks in my 94 Cherokee. I never had a problem cooling until the plastic tank cracked. I bought a new rad from Oreillys for $100, and I thought that was righteous, but it was made from aluminum and plastic, and weighed just a fraction of the old oem rad. Also it barely cooled the engine when in stop/go traffic on an 80degree day, and I couldn't even think of running the AC. Almost exactly a year later the new rad started leaking, just past the warranty expiration. I broke down and spent $400 for an all copper/brass rad, which is better at cooling than my oem rad. The electric fans hardly ever come on, now. and I can run as much AC as I want.