{"product_id":"aluminum-radiator-for-lincoln-navigator-2007-2008-5-4l","title":"Aluminum Radiator for Lincoln Navigator (2007-2008) 5.4L","description":"\u003ch2\u003eHigh-Capacity All-Aluminum Radiator for 2007-2008 Lincoln Navigator\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Directly replaces the failure-prone plastic-tank OEM cooling unit with a 4-row brazed aluminum assembly to maximize heat rejection under heavy towing and high-load cycles.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Navigator End-Tank Vulnerability\u003c\/h3\u003e\n\u003cp\u003eThe OEM cooling assembly in the U326 platform relies on thin aluminum cores mechanically crimped to molded composite nylon end tanks. Over repeated thermal cycles, cyclic expansion and operating pressure weaken the elastomer gasket joint, leading to hairline tank fractures, seam separation, and catastrophic coolant loss. Additionally, the thin factory core lacks sufficient thermal headroom when the 5.4L Triton operates under heavy towing configurations, causing elevated cylinder head temperatures, premature coolant degradation, and thermal-induced oil thinning.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed entirely from high-grade aluminum with precision TIG-welded tanks, this unit completely eliminates crimp-seal failure points. The heavy-duty 4-row core maximizes fluid volume and fluid-to-fin contact surface, significantly accelerating convective heat dissipation across the brazed tube array. Engineered for bolt-in compatibility, it aligns directly with factory mounting isolators and cooling fan shrouds while maintaining uninhibited coolant flow rates from the water pump to protect valvetrain and bottom-end components under extreme ambient temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2008 Lincoln Navigator\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e5.4L Triton 3V SOHC V8 \/ U326\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e300 hp \/ 365 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007 Lincoln Navigator Base \/ L 5.4L V8\u003c\/li\u003e\n  \u003cli\u003e2008 Lincoln Navigator Base \/ L 5.4L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Lincoln Towing Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand heavy trailer weights and sustained highway grades, this heavy-duty cooling core delivers the structural integrity and thermal dissipation capacity required for uninterrupted utility and long-term powertrain reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50497319960824,"sku":"DS-EV4PPFEG1","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-radiator-for-lincoln-navigator-2007-2008-5-4l-1.jpg?v=1789257861","url":"https:\/\/performancechiptuning.com\/products\/aluminum-radiator-for-lincoln-navigator-2007-2008-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}