1978 Mack RD685S, Truck Trailer, Radiators, Fits to: Mack RD685S, (Used) 1978 Mack RD685S, RADIATOR- Price is for Radiator ONLY-Picture is for display Only, Engine: 1978 Mack ENDT676, Dimensions: L=37", H=29 Less Overflow Tank, Sold Separately, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS ) 929 W PULASKI HWY ELKTON MD 21921, Truck Year 1978, VIN RD685S3685, Engine Make Mack RD685S3685