NEW RADIATOR ASSEMBLY FITS MERCURY 98-01 MOUNTAINEER 4.0L V6 CID FD37078A 431411 3280 XL2Z8005DA FO3010147 CU2309 FD37078A 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Radiator - Accessories Included: 2 X TOC Adapters (11/16-20Unf X 1/2-20Unf) Rows: 1 Core Size: 20 3/4" x 23 5/16" x 1" Bottom Header: 3 1/16" x 23 13/16" Top Header: 3 1/16" x 23 13/16"