{"product_id":"catalytic-converter-for-ford-f-150-2005-2008-4-2l-left-right","title":"Catalytic Converter for Ford F-150 (2005-2008) 4.2L Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Left and Right Catalytic Converter Set for 2005-2008 Ford F-150 (P221)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit left and right catalytic converter set replaces deteriorated or clogged factory emissions units on the 2005-2008 Ford F-150 4.2L to clear catalyst efficiency DTCs (P0420\/P0430) and restore exhaust gas velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-150 Catalytic Converter Degradation\u003c\/h3\u003e\n\u003cp\u003eHigh-mileage \u003cstrong\u003eP221\u003c\/strong\u003e chassis work trucks running the \u003cstrong\u003e4.2L Essex V6\u003c\/strong\u003e frequently suffer from washcoat erosion, internal ceramic substrate thermal breakdown, and carbon poisoning. Unburned hydrocarbons and thermal cycling cause factory washcoats to degrade or melt, inducing severe exhaust backpressure that chokes volumetric efficiency and triggers downstream oxygen sensor threshold diagnostic codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for the \u003cstrong\u003eFord Essex 4.2L\u003c\/strong\u003e powertrain, this bank 1 and bank 2 replacement assembly uses mandrel-bent 409 stainless steel tubing coupled to high-flow ceramic substrates loaded with noble metal washcoats for Federal EPA compliance. The driver-side assembly (OEM \u003cstrong\u003e16786\u003c\/strong\u003e) features a 12-inch round canister with a 3.25-inch ID spherical flare 2-bolt flange running to a 2.5-inch OD outlet across a 37-inch span. The passenger-side assembly (OEM \u003cstrong\u003e16787\u003c\/strong\u003e) utilizes a 6.5-inch x 9-inch x 12-inch oval casing with dual 3.25-inch ID inlets and a 2.5-inch OD collector over a 48.25-inch span, ensuring factory hanger alignment and leak-free flanged sealing without custom fabrication.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Left-Side Direct-Fit Catalytic Converter (Part # 16786)\u003c\/li\u003e\n  \u003cli\u003e1 Right-Side Direct-Fit Catalytic Converter (Part # 16787)\u003c\/li\u003e\n  \u003cli\u003eInstallation Hardware and Flange Accessories\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: solid font-size: min-width:\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;\"\u003e2005-2008 Ford F-150\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;\"\u003e4.2L Essex V6 \/ P221\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;\"\u003e202 hp \/ 260 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;\"\u003e16786, 16787\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\u003e2005 Ford F-150 4.2L V6 (Standard Cab, Extended Cab)\u003c\/li\u003e\n  \u003cli\u003e2006 Ford F-150 4.2L V6 (Standard Cab, Extended Cab)\u003c\/li\u003e\n  \u003cli\u003e2007 Ford F-150 4.2L V6 (Standard Cab, Extended Cab)\u003c\/li\u003e\n  \u003cli\u003e2008 Ford F-150 4.2L V6 (Standard Cab, Extended Cab)\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 P221 F-150?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2008 Ford F-150 equipped with the \u003cstrong\u003e4.2L Essex V6\u003c\/strong\u003e engine; it does not fit 4.6L or 5.4L Triton V8 models.\u003c\/p\u003e\n\n\u003ch4\u003eIs this catalytic converter legal for sale or use nationwide?\u003c\/h4\u003e\n\u003cp\u003eThis Federal EPA-compliant set is not CARB-certified and is not legal for sale, installation, or registration on vehicles registered in California, Colorado, New York, or Maine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand severe heat cycles and vibration under heavy payload and towing duty, these converters maintain uncompromised flow characteristics and structural integrity over severe work-cycle demands.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67599164276984,"sku":"DS-E3C9TN4QE","price":218.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-ford-f-150-2005-2008-4-2l-left-right-1.jpg?v=1791475005","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-ford-f-150-2005-2008-4-2l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}