{"product_id":"performance-head-gasket-kit-for-lincoln-navigator-2007-2014-5-4l","title":"Performance Head Gasket Kit \u0026 Seals for Lincoln Navigator (2007-2014) 5.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Full Engine Overhaul Gasket Set for 2007-2014 Lincoln Navigator (U326)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Head Gasket Kit completely seals the combustion chambers, oil galleries, and coolant passages on the 2007-2014 Lincoln Navigator to prevent compression loss, fluid crossover, and external leaks under heavy operational loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln Navigator Gasket Failure Points\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e5.4L Triton 3V SOHC\u003c\/strong\u003e engine in the heavy \u003cstrong\u003eU326\u003c\/strong\u003e chassis operates under severe thermal expansion cycles, especially during sustained towing or extended idling. The factory multi-layer steel (MLS) head gaskets and elastomer seals frequently degrade over time, leading to combustion ring fatigue, coolant migration into cylinder bores, and external oil seepage. Additionally, stock elastomeric intake and valve cover gaskets become brittle from continuous underhood heat soak, resulting in unmetered air leaks, misfires, and persistent oil pan leaks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis full overhaul gasket set utilizes high-tensile multi-layer spring steel (MLS) head gaskets with embossed combustion sealing rings engineered to handle elevated cylinder pressures and block-to-head shear movement. All secondary seals and valve stem oil seals are molded from high-grade fluoroelastomer (FKM) to resist oil deterioration and thermal hardening. Precision-cut exhaust manifold gaskets incorporate multi-layer stainless construction to resist high-temperature blowout, maintaining rigid, leak-free sealing across all modular engine mating surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Valve Oil Seal Set\u003c\/li\u003e\n  \u003cli\u003e2 Multi-Layer Steel Head Gaskets\u003c\/li\u003e\n  \u003cli\u003e2 Valve Cover Gaskets\u003c\/li\u003e\n  \u003cli\u003e2 Intake Manifold Gaskets\u003c\/li\u003e\n  \u003cli\u003e4 Exhaust Manifold Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 Oil Pan Gasket\u003c\/li\u003e\n  \u003cli\u003e1 Crankshaft Rear Oil Seal\u003c\/li\u003e\n  \u003cli\u003e2 Crankshaft Front Oil Seals\u003c\/li\u003e\n  \u003cli\u003e1 Oil Filter Gasket\u003c\/li\u003e\n  \u003cli\u003e2 Water Outlet Gaskets\u003c\/li\u003e\n  \u003cli\u003eAssorted Small O-Rings and Ancillary Seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2007-2014 Lincoln Navigator\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e5.4L Triton SOHC 24V (Modular V8) \/ U326\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e310 hp \/ 365 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2008 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2009 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2010 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2011 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2012 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2013 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n  \u003cli\u003e2014 Lincoln Navigator 5.4L V8 Base \/ L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the U326 Navigator?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2014 Lincoln Navigator equipped with the \u003cstrong\u003e5.4L Triton SOHC 24V\u003c\/strong\u003e (3-Valve) engine. \u003cstrong\u003eDoes not fit 3.5L EcoBoost V6 or earlier 5.4L 32V DOHC InTech models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre new cylinder head bolts required during installation?\u003c\/h4\u003e\n\u003cp\u003eYes, the 5.4L Modular V8 utilizes torque-to-yield (TTY) cylinder head bolts that permanently stretch upon installation and must be replaced with new hardware to ensure correct clamping load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Durability Standard\u003c\/h3\u003e\n\u003cp\u003eFull-size luxury SUVs require heavy-duty sealing to handle maximum towing ratings, high gross vehicle weights, and severe duty cycles. Rebuilding your 5.4L Triton with multi-layer steel gaskets guarantees proper thermal stability, sustained combustion pressures, and reliable mechanical longevity under load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67547092648184,"sku":"DS-EC5D7C3EO","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-head-gasket-kit-for-lincoln-navigator-2007-2014-5-4l-1.jpg?v=1790740516","url":"https:\/\/performancechiptuning.com\/de\/products\/performance-head-gasket-kit-for-lincoln-navigator-2007-2014-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}