Coolant Hose, Centerline 9 13/16 in., 4 in. L x 5/8 in. I.D., 3 in. L x 3/4 in. I.D., Resists Electrochemical Degradation, Heat, & Ozone, For use from -40 degrees F to 275 degrees F, Molded Black EPDM Rubber|JEGS Molded Coolant Hose Ideal for LS or LT (Gen III, IV, V) Engine Swap.