The BRT radiator is billed as a heavy-duty replacement. Usually companies list any three- or four-core radiator as "heavy-duty" but this one really delivers. The cap, hose inlet/outlet bungs, and mounting flanges are all thick and beefy and are every bit as burly as the stock '73 unit's parts. And that's from an era where you could use a beer can to hold up a truck. None of that paper-thin import crap here. Furthermore, the unit was shipped nicely protected inside a heavy-duty box and arrived undamaged and ready for installation.