The Blue Streak Performance Transmission Cooler Combo Assembly, No. 527, by Hayden, combines the company's 8" High Performance Electric Fan - with a low profile, four pole motor - with its 37mm Heavy Duty Plate/Fin Cooler. Each transmission cooler combo unit comes completely pre-assembled with powdercoated brackets for increased durability. Cooler combo add-ons such as the company's Digital Fan Controller (No. 3655) and Cooler Adapter Fittings (Nos. 387 and 388) can be added to customize cooling needs.