OPL HPR043 Aluminum Radiator For Mazda RX-7 (Manual Transmission) Fits: 1979-1982 Mazda RX-7 S1 S2 S3 (Manual Transmission) Inlet: 1.5" / Outlet: 1.5" / Rows: 3 Core Size: 20.75" x 11.5" x 2.25" / Overall Size: 25.5" x 16.25" x 5" All aluminum alloy construction assembled using 100% precision TIG welds 10 year manufacturer warranty