{"product_id":"catalytic-converter-for-lincoln-mark-lt-2006-2008-5-4l-right","title":"Catalytic Converter for Lincoln Mark LT (2006-2008) 5.4L Right","description":"\u003ch2\u003eDirect-Fit Right Side Catalytic Converter for 2006-2008 Lincoln Mark LT\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Right Catalytic Converter replaces failed or clogged passenger-side emissions equipment on the 2006-2008 Lincoln Mark LT to restore factory exhaust scavenging, eliminate catalyst-efficiency DTCs, and maintain emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln Mark LT Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eThe factory catalytic converters on the \u003cstrong\u003eP221\u003c\/strong\u003e chassis paired with the \u003cstrong\u003e5.4L 3V Triton\u003c\/strong\u003e engine are notorious for thermal stress and washcoat erosion over extended service intervals. Misfire cycles caused by failing ignition coils or worn spark plugs introduce unburnt hydrocarbons directly into the exhaust tract. This unspent fuel superheats the passenger-side ceramic brick, resulting in internal substrate meltdown, structural fracturing, and exhaust backpressure spikes that trigger persistent P0420\/P0430 diagnostic trouble codes while choking top-end engine power.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement passenger-side catalytic converter assembly is engineered with a heavy-duty steel outer shell and a high-flow honeycomb ceramic substrate coated with premium washcoat precious metals (platinum, palladium, rhodium). Precision-machined, thick-gauge flanges ensure a leak-free mating surface to the factory manifold collector and intermediate pipe, resisting thermal warp under heavy towing loads. Mandrel-formed pipe geometry matches the OEM exhaust architecture seamlessly, eliminating exhaust restriction and clearing transmission crossmembers without requiring custom cutting, welding, or sensor harness extensions.\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; margin-bottom: 20px;\"\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;\"\u003e2006-2008 Lincoln Mark LT\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;\"\u003e\n\u003cstrong\u003e5.4L 3V Triton V8\u003c\/strong\u003e \/ \u003cstrong\u003eP221\u003c\/strong\u003e\n\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;\"\u003e300 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;\"\u003e\n\u003cstrong\u003e53651\u003c\/strong\u003e, \u003cstrong\u003e645461\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2006 Lincoln Mark LT Base 5.4L V8 - Right Side\u003c\/li\u003e\n  \u003cli\u003e2007 Lincoln Mark LT Base 5.4L V8 - Right Side\u003c\/li\u003e\n  \u003cli\u003e2008 Lincoln Mark LT Base 5.4L V8 - Right Side\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the P221 Mark LT?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2006-2008 Lincoln Mark LT equipped with the \u003cstrong\u003e5.4L 3V Triton\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this resolve downstream P0420\/P0430 DTCs?\u003c\/strong\u003e\u003cbr\u003e Yes, providing upstream oxygen sensors and fuel trim delivery are within OEM specifications, this unit restores proper catalytic reduction efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Workhorse Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained high-exhaust-gas temperatures during heavy payload hauling and towing, this direct-fit catalytic converter delivers the industrial-grade durability and backpressure reduction required to keep your luxury utility truck working reliably without check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501721227512,"sku":"DS-E9WPVMTYO","price":227.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-lincoln-mark-lt-2006-2008-5-4l-right-1.jpg?v=1789330934","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-lincoln-mark-lt-2006-2008-5-4l-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}