Designed for engines making 450 to 750 horsepower. These units have
seventy-six 1/4" seamless tubes - over double that of a 2"
cooler. The cooler incorporates cast end caps, NO cheap press-formed caps
are used. Operating pressure up to 150 PSI. This is the cooler all
others try to imitate but can never duplicate. Compare features and you
will demand Hardin Marine oil coolers.