OEM FGF fans are 19" wide from tip to tip. I've had all the usual hot issues as everyone else. I tracked down, bought and installed every filler panel, mastic rubber fillers and the list goes on and on and until I installed an OEM 19" clutch fan that is when ALL of my hot issues went away. And for good measure I added one bottle of Royal Purple Water Wetter and bang, NO more hot issues. Now, I am replacing my $600 alum rad with an OEM w/Harrison tanks and hopefully still be ok. The alum rad I am replacing has already been sold...