{"product_id":"kax-cu13129-engine-radiator-replacement-compatible-with-ram","title":"KAX CU13129 Engine Radiator Replacement Compatible with Ram","description":"\u003cp\u003eIn this review the KAX CU13129 engine radiator replacement is presented for owners of various Ram 1500, 1500 Classic, 2500 and 3500 trucks who need a direct-fit cooling solution. The bottom line: this radiator is aimed at technicians and DIYers who want a near-OE fit and strong cooling performance because it uses an aluminum core with multi-louver fins and high-grade plastic tanks. It is notable for its compatibility across many model years and for offering a practical two-year warranty and clear fitment guidance in the product listing.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect fit:\u003c\/strong\u003e Covers a wide range of Ram 1500, 1500 Classic, 2500 and 3500 model years so buyers can find a close match to their original radiator without major modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE numbers \u0026amp; specifications:\u003c\/strong\u003e Matches several original equipment part numbers, which helps ensure the radiator aligns with factory mounting points and plumbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh efficiency core:\u003c\/strong\u003e High-density multi-louver fins and an aluminum core increase heat dissipation area for improved cooling under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e High-grade plastic water tanks and corrosion-resistant materials reduce the likelihood of premature failure in typical driving conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested reliability:\u003c\/strong\u003e Each unit is pressure tested, leak-proof tested and stress tested under durability procedures to meet IATF16949 quality standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced packaging:\u003c\/strong\u003e Shockproof multi-layer packaging with foam corner protection lowers the risk of transport damage on delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis radiator is best for Ram owners who need a straightforward replacement for 2011-2017 1500\/2500\/3500 and 2019-2023 1500 Classic variants, especially those replacing a damaged or failing core and seeking an affordable, near-OE alternative. It will appeal to professional installers and capable DIY mechanics who can confirm fitment and handle installation.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for owners who require factory-original branded parts for warranty reasons, or for vehicles with custom cooling upgrades where a higher-capacity or bespoke radiator is desired. Also, buyers uncertain about exact model-year compatibility should verify vehicle fitment before purchase.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood fit for many Ram model years and engine variants, reducing installation hassle.\u003c\/li\u003e\n\u003cli\u003eEffective cooling design with aluminum core and multi-louver fins for better heat transfer.\u003c\/li\u003e\n\u003cli\u003eValue-oriented option with a two-year quality assurance and comprehensive after-sales support.\u003c\/li\u003e\n\u003cli\u003eWell packaged for shipment to avoid transit damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuild quality feedback is mixed; some buyers reported concerns with transmission cooler fittings.\u003c\/li\u003e\n\u003cli\u003eThere are isolated reports of leakage, so careful pre-install inspection and pressure testing after install are recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Thickness\u003c\/td\u003e\n\u003ctd\u003e1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Width\u003c\/td\u003e\n\u003ctd\u003e27-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Height\u003c\/td\u003e\n\u003ctd\u003e22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet Diameter\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet Diameter\u003c\/td\u003e\n\u003ctd\u003e1-3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE Part Numbers\u003c\/td\u003e\n\u003ctd\u003e55056858AB\/AC\/AD\/AE, 55056870AA-AF, 55056972AB, CU13295\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KAX CU13129 is a practical, value-focused replacement radiator for many Ram 1500, 1500 Classic, 2500 and 3500 applications, offering solid cooling performance and a two-year warranty. It is recommended for owners seeking a near-OE fit and good thermal efficiency, but those who need factory-branded exact matches or who worry about occasional fitting or leak reports should proceed with fitment confirmation and careful inspection.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this radiator fit my Ram 1500?\u003c\/strong\u003e\u003cbr\u003eConfirm exact year and engine variant against the compatibility list and the vehicle fitment tool provided by the seller before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the inlet and outlet sizes?\u003c\/strong\u003e\u003cbr\u003eThe radiator uses a 1-1\/2 in inlet and a 1-3\/4 in outlet as specified in the product details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a warranty?\u003c\/strong\u003e\u003cbr\u003eYes, the manufacturer provides a two-year quality assurance and after-sales support for this radiator.\u003c\/p\u003e","brand":"KAX","offers":[{"title":"Default Title","offer_id":48259560538331,"sku":"B0FCR5M15T","price":106.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81Ck9hoki_L._AC_SL1500.jpg?v=1778297960","url":"https:\/\/gearmusthave.com\/products\/kax-cu13129-engine-radiator-replacement-compatible-with-ram","provider":"GearMustHave","version":"1.0","type":"link"}