{"id":948,"date":"2026-10-11T13:49:33","date_gmt":"2026-10-11T13:49:33","guid":{"rendered":"https:\/\/www.jlinlin.com\/?post_type=product&p=948"},"modified":"2026-10-12T02:41:00","modified_gmt":"2026-10-12T02:41:00","slug":"upper-radiator-hose-kit-for-2017-2019-l5p-duramax-6-6l-aluminum-upper-radiator-coolant-hose-replacement-upgrade","status":"publish","type":"product","link":"https:\/\/www.jlinlin.com\/index.php\/product\/upper-radiator-hose-kit-for-2017-2019-l5p-duramax-6-6l-aluminum-upper-radiator-coolant-hose-replacement-upgrade\/","title":{"rendered":"Upper Radiator Hose Kit for 2017-2019 L5P Duramax 6.6L, Aluminum Upper Radiator Coolant Hose Replacement Upgrade"},"content":{"rendered":"

Specifications<\/h2>\n<\/p>\n\n\n\n\n\n\n\n
Brand<\/td>\n<\/td>\n<\/tr>\n
Material<\/td>\n6063 Aluminum Alloy + 5-Ply Silicone Hose<\/td>\n<\/tr>\n
Item Weight<\/td>\n2.14 lbs<\/td>\n<\/tr>\n
OEM Part Number<\/td>\n84094878<\/td>\n<\/tr>\n
Compatibility<\/td>\nFor GMC Models:
2017-2019 Sierra 2500 HD\/3500 HD L5P 6.6L Duramax
For Chevrolet Models:
2017-2019 Silverado 2500 HD\/3500 HD L5P 6.6L Duramax<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Description<\/h2>\n

<\/p>\n

\u00a0<\/span>upper radiator hose<\/strong>\u00a0<\/span>is a direct-fit aluminum coolant pipe upgrade for\u00a0<\/span>2017-2019 Chevrolet Silverado 2500 HD\/3500 HD<\/strong>\u00a0<\/span>and\u00a0<\/span>GMC Sierra 2500 HD\/3500 HD<\/strong>\u00a0<\/span>models with the\u00a0<\/span>L5P 6.6L Duramax<\/strong>\u00a0<\/span>engine. This\u00a0<\/span>L5P Duramax radiator hose<\/strong>\u00a0<\/span>replaces\u00a0<\/span>OEM part number 84094878<\/strong>\u00a0<\/span>and follows the original coolant routing path for bolt-on installation with no cutting, trimming, or fabrication required.<\/p>\n

This\u00a0<\/span>auto radiator hose<\/strong>\u00a0<\/span>kit is designed for drivers who need a stronger\u00a0<\/span>chevy radiator hose<\/strong>,\u00a0<\/span>chevy silverado coolant hose<\/strong>, or\u00a0<\/span>Sierra radiator hose<\/strong>\u00a0<\/span>for compatible L5P Duramax trucks. It is not a universal\u00a0<\/span>coolant hose for car<\/strong>\u00a0<\/span>use; it is a vehicle-specific\u00a0<\/span>upper radiator hose<\/strong>\u00a0<\/span>replacement for the listed Silverado and Sierra applications.<\/p>\n

\"Upper<\/div>\n

Upper Radiator Hose Replacement<\/h2>\n

Replaces the factory upper radiator hose assembly with a high-quality aluminum coolant pipe upgrade. Built to follow the original coolant routing path for a direct bolt-on installation with no cutting, trimming, or fabrication required.<\/p>\n

Complete Installation Kit<\/span><\/h2>\n

This\u00a0<\/span>upper radiator hose<\/strong>\u00a0replacement includes one mandrel-bent aluminum upper coolant pipe, reinforced\u00a0<\/span>5-ply silicone radiator hose<\/strong>\u00a0couplers, and heavy-duty T-bolt clamps. Together, these components create a complete radiator cooling hose connection system while keeping the original upper coolant routing layout.<\/span><\/span><\/p>\n

Package Includes:<\/span><\/span><\/h3>\n
    \n
  • aluminum upper coolant pipe *1<\/strong><\/span><\/span><\/li>\n
  • reinforced 5-ply silicone couplers *2<\/strong><\/span><\/span><\/li>\n
  • heavy-duty T-bolt clamps *4<\/strong><\/span><\/span><\/li>\n<\/ul>\n
    \"Complete<\/div>\n

    Why choose Upper Coolant Hose Kit?<\/span><\/h2>\n

    1. 6063-T6 Aluminum Alloy Construction<\/span><\/h3>\n

    Compared with a standard rubber\u00a0<\/span>auto radiator hose<\/strong>, this kit uses\u00a0<\/span>6063 aluminum alloy pipe construction<\/strong>\u00a0with reinforced\u00a0<\/span>silicone radiator hose<\/strong>\u00a0couplers. For owners comparing factory rubber hoses and\u00a0<\/span>aluminum radiator hoses<\/strong>, this product provides a cleaner, more rigid, and performance-inspired upper cooling pipe setup while maintaining the original coolant path.<\/span><\/span><\/p>\n

    \"6063<\/div>\n

    2. Direct-Fit for Silverado and Sierra<\/span><\/h3>\n

    This\u00a0<\/span>Chevy radiator hose<\/strong>\u00a0<\/span>upgrade is made for\u00a0<\/span>2017-2019 Chevrolet Silverado 2500 HD and 3500 HD L5P 6.6L Duramax<\/strong>\u00a0<\/span>models. It also works as a\u00a0<\/span>Sierra radiator hose<\/strong>\u00a0<\/span>replacement for\u00a0<\/span>2017-2019 GMC Sierra 2500 HD and 3500 HD L5P 6.6L Duramax<\/strong>\u00a0<\/span>trucks.<\/p>\n

    If you are looking for a Chevy Silverado<\/strong><\/span>\u00a0coolant hose<\/strong>\u00a0<\/span>or\u00a0<\/span>L5P Duramax radiator hose<\/strong>, confirm your year, make, model, engine, and\u00a0<\/span>OEM part number 84094878<\/strong>\u00a0<\/span>before ordering.<\/p>\n

    \"Aluminum<\/div>\n

    3. Built for Real Use<\/span><\/h3>\n

    This\u00a0<\/span>upper radiator hose<\/strong>\u00a0<\/span>kit is suitable for\u00a0<\/span>daily driving, towing, diesel performance builds, long-term ownership, and cleaner engine bay presentation<\/strong>. The aluminum coolant pipe and\u00a0<\/span>silicone radiator hose<\/strong>\u00a0<\/span>couplers help provide a secure upper cooling system connection for compatible L5P Duramax trucks.<\/p>\n

    \"Before<\/div>\n

    4. Cleaner Engine Bay Upgrade<\/span><\/h3>\n

    \u00a0<\/span>aluminum radiator hoses<\/strong>\u00a0<\/span>help replace the factory rubber coolant hose appearance with a cleaner aluminum pipe configuration. This\u00a0<\/span>auto radiator hose<\/strong>\u00a0<\/span>upgrade gives the engine bay a more modern and performance-inspired look while keeping the factory coolant routing path.<\/p>\n

    \"Direct-fit<\/div>\n

    5. Fitment Reminder<\/span>
    \n<\/h3>\n

    This is not a universal\u00a0<\/span>coolant hose for car<\/strong>\u00a0<\/span>replacement. It is a vehicle-specific\u00a0<\/span>L5P Duramax radiator hose<\/strong>\u00a0<\/span>for listed Chevrolet Silverado and GMC Sierra 2500 HD\/3500 HD models. Before purchasing this Chevy Silverado<\/strong><\/span>\u00a0coolant hose<\/strong>\u00a0<\/span>or\u00a0<\/span>Sierra radiator hose<\/strong>, verify\u00a0<\/span>OEM part number 84094878<\/strong>\u00a0<\/span>and confirm your vehicle is a\u00a0<\/span>2017-2019 L5P 6.6L Duramax<\/strong>.<\/p>\n

    Who Is This Upper Radiator Hose Kit For?<\/span><\/h2>\n
      \n
    • 2017-2019 Chevy Silverado 2500 HD\/3500 HD L5P 6.6L Duramax owners<\/strong><\/li>\n
    • 2017-2019 GMC Sierra 2500 HD\/3500 HD L5P 6.6L Duramax owners<\/strong><\/li>\n
    • Users replacing OEM part number 84094878<\/strong>\n<\/li>\n
    • Drivers who tow, daily drive, or maintain diesel trucks long term<\/strong>\n<\/li>\n
    • L5P Duramax owners upgrading from factory rubber hose styling to an aluminum coolant pipe setup<\/strong>\n<\/li>\n<\/ul>\n

      Where Can This Upper Radiator Hose Kit Be Used?<\/span><\/h2>\n
        \n
      • Factory upper radiator hose replacement<\/li>\n
      • L5P Duramax upper coolant pipe upgrade<\/li>\n
      • Chevy Silverado coolant hose replacement<\/li>\n
      • GMC Sierra radiator hose replacement<\/li>\n
      • Towing use<\/li>\n
      • Daily driving cooling system maintenance<\/li>\n
      • Diesel engine bay build<\/li>\n
      • Long-term cooling pipe upgrade<\/li>\n<\/ul>\n

        Who Should Not Buy This Radiator Hose Kit?<\/span><\/h2>\n
          \n
        • Non-2017-2019 L5P Duramax models<\/li>\n
        • 6.7 Cummins, 6.7 Powerstroke, LML Duramax, or LBZ Duramax vehicles<\/li>\n
        • Lower radiator hose searches<\/li>\n
        • Heater hose or EGR coolant hose searches<\/li>\n
        • Coolant fluid buyers, because this product is a hose and pipe kit, not coolant liquid.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          Specifications Brand Material 6063 Aluminum Alloy + 5-P […]<\/p>\n","protected":false},"featured_media":1074,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[67],"product_tag":[68,69,70],"class_list":["post-948","product","type-product","status-publish","has-post-thumbnail","product_cat-upper-coolant-hose-kit","product_tag-cooling-system","product_tag-radiator-hose","product_tag-upper-coolant-hose-kit","first","instock","sale","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product\/948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/comments?post=948"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/media\/1074"}],"wp:attachment":[{"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/media?parent=948"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=948"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=948"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jlinlin.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}