Aeroflow's new engine and transmission oil coolers feature 1/2" NPT female fittings for a perfect O-ring seal, thermostat wiring, plug kit and a high quality electric fan. It accepts engine oil, transmission and power steering applications and has been pressure tested to over 200psi. The thermal switch included activates the fan at 175°F/79.5°C. The cooler also features a fin and plate construction. The dimensions are 13.5"(34cm) x 9"(23cm).