An HHR wouldnt clear the water pump in my Duster with a Champion radiator, but a lot of people use them. A 2009 Challenger dual fan did fit with some decent trimming around the back of the fans/supports to squeeze it in there. That one did fit pretty well on a 26" radiator also.1990's Volvo 740, 850 or 950 2 speed fans move tons of air and amps if you want to build a shroud.