It is a summit Part # GRI-1-26182-X (the GRI means it is really a Griffin) 22X19. Biggest I could put in there without cutting into the frame rails. Cools too good now. I will have to install a thermostatic fan switch so the fan will stay off until it gets up to 195-ish. I have a better top mount now that looks more professional and clean. This little thing on the top was temporary as i fabbed up the permanent one...
