{"product_id":"catalytic-converter-for-ford-explorer-sport-2002-2003-4-0l-front-rear","title":"Catalytic Converter for Ford Explorer Sport (2002-2003) 4.0L Front \u0026 Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front \u0026amp; Rear Catalytic Converter Set for 2002-2003 Ford Explorer Sport (UN105)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Front \u0026amp; Rear Catalytic Converter assembly replaces deteriorated factory emissions units on the 2002-2003 Ford Explorer Sport to clear check engine lights, normalize exhaust backpressure, and restore emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Explorer Sport Catalytic Converter Degradation\u003c\/h3\u003e\n\u003cp\u003eThe factory catalytic converters on the \u003cstrong\u003eUN105\u003c\/strong\u003e chassis suffer from thermal fatigue and substrate breakdown over high-mileage heat cycles. On the high-compression \u003cstrong\u003eCologne 4.0L SOHC V6\u003c\/strong\u003e, rich-running conditions, unburned hydrocarbons, and aging upstream oxygen sensors frequently lead to core sintering and washcoat contamination. This substrate melt-down restricts exhaust scavenging, elevates backpressure at the manifolds, triggers persistent \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e DTC codes, and chokes off engine power during hill climbs or towing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive front and rear converter kit delivers a bolt-in replacement built from corrosion-resistant \u003cstrong\u003estainless steel\u003c\/strong\u003e tubing. Featuring a high-efficiency ceramic honeycomb monolith wash-coated with noble metal catalysts, it ensures optimal cross-sectional flow while maintaining thorough chemical conversion of CO, HC, and NOx. Precision-machined, heavy-gauge mating flanges and factory-located downstream O2 sensor bungs eliminate the need for cutting, custom fabrication, or MIG welding. Mandrel-bent transition cones maintain continuous gas velocity across both banks to protect the exhaust valves from thermal backup.\u003c\/p\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;\"\u003e2002-2003 Ford Explorer Sport\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\u003e4.0L SOHC Cologne V6\u003c\/strong\u003e \/ \u003cstrong\u003eUN105\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;\"\u003e203 hp \/ 237 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\u003e50202\u003c\/strong\u003e, \u003cstrong\u003e53500\u003c\/strong\u003e\n\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\u003e2002 Ford Explorer Sport 4.0L V6 Front \u0026amp; Rear\u003c\/li\u003e\n  \u003cli\u003e2003 Ford Explorer Sport 4.0L V6 Front \u0026amp; Rear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the UN105 Explorer Sport?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2002-2003 Ford Explorer Sport equipped with the \u003cstrong\u003e4.0L SOHC Cologne V6\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this direct-fit converter clear catalyst efficiency DTCs?\u003c\/h4\u003e\n\u003cp\u003eYes, the OE-grade washcoat restores catalytic conversion capacity to clear P0420 and P0430 codes provided all upstream air-fuel sensors and ignition components function correctly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Utility Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the severe-duty cycles demanded by Ford utility platforms, this heavy-duty stainless steel exhaust assembly resists road-salt corrosion and mechanical vibration, ensuring sustained exhaust flow integrity whether hauling cargo or navigating washboard trails.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537972953336,"sku":"DS-E2IDT8E7T","price":240.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-ford-explorer-sport-2002-2003-4-0l-front-rear-1.jpg?v=1790620239","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-ford-explorer-sport-2002-2003-4-0l-front-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}