{"product_id":"cold-case-radiator-1977-1987-chevy-gmc-pickup-21in-gmt556a21","title":"Cold Case Aluminum Radiator — 1977-1987 Chevy \u0026 GMC Pickup | 21in, Automatic, 2-Row | GMT556A21","description":"\u003cp\u003eThe Cold Case GMT556A21 is a direct-fit 21 inch aluminum performance radiator for the 1977-1987 Chevy and GMC C and K series pickup with an automatic transmission and a 1.5 inch lower hose. It uses a 2-row core with two 1.25 inch tubes and 16 corrugated fins per inch, built with 100 percent TIG-welded all-aluminum construction and polished OE-style tanks, and includes a transmission cooler with a 5\/16 inch inverted flare fitting. It also suits the matching full-size GM SUVs of the era, such as the Blazer, Jimmy, and Suburban.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: aluminum performance radiator (automatic, 21 in, 1.5 in lower hose)\u003c\/li\u003e\n\u003cli\u003eCore: 2-row, two 1.25 in tubes, 16 corrugated fins per inch\u003c\/li\u003e\n\u003cli\u003eConstruction: 100 percent TIG-welded aluminum, polished OE-style tanks\u003c\/li\u003e\n\u003cli\u003eOverall size: 34.33 in W x 21 in H x 3 in D (core 28.35 x 18.8 in)\u003c\/li\u003e\n\u003cli\u003eHoses: 1.25 in upper, 1.5 in lower\u003c\/li\u003e\n\u003cli\u003eTransmission cooler: 5\/16 in inverted flare fitting\u003c\/li\u003e\n\u003cli\u003ePart number: GMT556A21\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Applications\u003c\/h3\u003e\u003cp\u003eDirect fit on the following (automatic):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1977 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1977 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1978 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1979 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1980 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1981 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1982 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1983 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1984 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1985 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1986 GMC C\/K Pickup\u003c\/li\u003e\n\u003cli\u003e1987 GMC C\/K Pickup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat vehicles does the Cold Case GMT556A21 fit?\u003c\/h5\u003e\u003cp\u003eThe 1977-1987 Chevy and GMC C and K series pickup, plus the matching full-size Blazer, Jimmy, and Suburban.\u003c\/p\u003e\u003ch5\u003eWhich lower hose size is this version?\u003c\/h5\u003e\u003cp\u003eThis is the 1.5 inch lower hose version. Cold Case also offers a 1.75 inch lower hose version.\u003c\/p\u003e\u003ch5\u003eIs it built for automatic or manual?\u003c\/h5\u003e\u003cp\u003eThis is the automatic-transmission version and includes a transmission cooler.\u003c\/p\u003e\u003ch5\u003eHow many rows is the core?\u003c\/h5\u003e\u003cp\u003eA 2-row core with two 1.25 inch tubes and 16 corrugated fins per inch.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles does the Cold Case GMT556A21 fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 1977-1987 Chevy and GMC C and K series pickup, plus the matching full-size Blazer, Jimmy, and Suburban.\"}}, {\"@type\": \"Question\", \"name\": \"Which lower hose size is this version?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is the 1.5 inch lower hose version. Cold Case also offers a 1.75 inch lower hose version.\"}}, {\"@type\": \"Question\", \"name\": \"Is it built for automatic or manual?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is the automatic-transmission version and includes a transmission cooler.\"}}, {\"@type\": \"Question\", \"name\": \"How many rows is the core?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 2-row core with two 1.25 inch tubes and 16 corrugated fins per inch.\"}}]}\u003c\/script\u003e","brand":"COLD-CASE Radiators","offers":[{"title":"Default Title","offer_id":41295347515440,"sku":"GSWT_GMT556A21","price":435.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/CCRGMT556A21.jpg?v=1712702130","url":"https:\/\/berryperformancesales.com\/products\/cold-case-radiator-1977-1987-chevy-gmc-pickup-21in-gmt556a21","provider":"Berry Performance Sales","version":"1.0","type":"link"}