{"product_id":"zynrako-34-engine-coolant-radiator-for-chevy-gmc-cadillac-hummer-1999-2014-direct-fit-reinforced-construction","title":"Zynrako 34\" Engine Coolant Radiator for Chevy\/GMC\/Cadillac\/Hummer 1999–2014 — Direct-Fit, Reinforced Construction","description":"\u003cp\u003e\u003cstrong\u003eThe Zynrako CU2423 34\" engine coolant radiator is a direct-fit replacement radiator engineered to restore cooling performance for select Chevy, GMC, Cadillac and Hummer V6\/V8 trucks and SUVs from 1999–2014 without EOC.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis full-length radiator is built to match factory fit and function while offering enhanced durability features developed for heavy-duty use. It replaces multiple GM OEM part numbers and covers a wide list of model years and engine displacements—helpful when repairing vehicles that experience age-related corrosion, damaged cores, or cooling-system leaks. Zynrako blends reinforced construction with thermal-expansion controls so the unit resists failure from vibration and temperature cycling.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engines will this radiator actually fit?\u003c\/h3\u003e\n\u003cp\u003eThe CU2423 is designed for many GM platforms from 1999 through 2014. It supports Silverado, Sierra, Avalanche, Suburban, Tahoe, Yukon, Escalade, and H2 models in specific model years and engine sizes, provided the vehicle does not use Electronic Oil Cooler (EOC) configurations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 4.3L, 4.8L, 5.3L, 6.0L and 6.2L engines on listed years and models.\u003c\/li\u003e\n  \u003cli\u003eCovers Silverado\/Sierra 1500\/2500\/3500 and their HD\/classic variants across the stated years.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Suburban, Tahoe, Yukon\/Yukon XL, Avalanche, Escalade (including ESV\/EXT when applicable) and Hummer H2 where specified.\u003c\/li\u003e\n  \u003cli\u003eUse the vehicle-fit tool or provide VIN to confirm exact fit before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this radiator match OEM standards and part numbers?\u003c\/h3\u003e\n\u003cp\u003eZynrako engineered the CU2423 as a direct replacement that corresponds to numerous GM OEM numbers so installation aligns with original mounting, hose, and transmission cooler connections on compatible vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-replacement for multiple OEM numbers such as GM3010519, 15124630, 15252638 and many more listed in the product details.\u003c\/li\u003e\n  \u003cli\u003eCore dimensions and inlet\/outlet positions follow factory specifications for a drop-in fit on supported models without EOC.\u003c\/li\u003e\n  \u003cli\u003eMulti-fit attachments allow broader vehicle coverage while maintaining OE-style connections and mounting points.\u003c\/li\u003e\n  \u003cli\u003eConfirm fit with the \"Amazon Confirmed Fit\" tool or VIN to avoid mismatches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat durability or performance features does the Zynrako radiator use?\u003c\/h3\u003e\n\u003cp\u003eThe CU2423 incorporates structural and thermal design choices to reduce leak risk and extend service life compared with basic replacement cores. These features address vibration stresses and repeated thermal cycling found in daily driving and towing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDeep extrusion header and reinforced tube-to-header joints minimize leak paths caused by vibration.\u003c\/li\u003e\n  \u003cli\u003eB-type tubes with central reinforcement improve pressure tolerance and lower failure rates under load.\u003c\/li\u003e\n  \u003cli\u003eThermal expansion cuts and folded fin edges allow controlled expansion and better heat dissipation.\u003c\/li\u003e\n  \u003cli\u003eQuality control and materials aim to match factory durability while offering aftermarket value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support are available after purchase?\u003c\/h3\u003e\n\u003cp\u003eZynrako backs this radiator with a one-year warranty and customer support through Amazon, making it easier to resolve fitment questions or address defects discovered after installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year limited warranty for manufacturing defects under normal use.\u003c\/li\u003e\n  \u003cli\u003eAfter-sales support available via Amazon messages—provide VIN for faster, accurate assistance.\u003c\/li\u003e\n  \u003cli\u003eReplacement guidance and troubleshooting help for installation concerns.\u003c\/li\u003e\n  \u003cli\u003eRecommended to inspect hoses, clamps, and coolant during replacement to ensure system reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Zynrako CU2423 34\" radiator is suited for technicians, DIY mechanics, and fleet managers who need a reliable, OEM-compatible replacement for older GM trucks and SUVs (1999–2014) that do not use the EOC system. Choose this unit if you require a direct-fit radiator with reinforced headers and thermal-expansion features to reduce leak risk and maintain cooling efficiency after repair. Always verify vehicle fitment with the provided compatibility tool or VIN before ordering to ensure correct installation and performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this radiator fit vehicles with an Electronic Oil Cooler (EOC)?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The CU2423 is intended for models without EOC. Use the fitment tool or VIN to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty does Zynrako provide for this radiator?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Zynrako offers a one-year limited warranty and customer support via Amazon for fitment or defect issues.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Zynrako","offers":[{"title":"Default Title","offer_id":48080583557278,"sku":"B0F64ZXNCZ","price":199.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/zynrako-cu2423-front-view.jpg?v=1785782560","url":"https:\/\/northtrailauto.ca\/products\/zynrako-34-engine-coolant-radiator-for-chevy-gmc-cadillac-hummer-1999-2014-direct-fit-reinforced-construction","provider":"North Trail Auto","version":"1.0","type":"link"}