{"product_id":"catalytic-converter-for-gmc-sierra-yukon-2009-2013-4-3l-4-8l-5-3l-6-0l","title":"Catalytic Converter for GMC Sierra Yukon (2009-2013) 4.3L 4.8L 5.3L 6.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Catalytic Converter for 2009-2013 GMC Sierra, Yukon (GMT900)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter replaces degraded emissions cores on the 2009-2013 GMC Sierra and Yukon to clear P0420\/P0430 DTCs, re-establish exhaust scavenging, and restore factory tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Sierra, Yukon Catalyst Failure\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust converters on high-mileage \u003cstrong\u003eGMT900\u003c\/strong\u003e platforms regularly suffer from internal washcoat degradation, substrate meltdown, or thermal fatigue. On \u003cstrong\u003eGM Vortec\u003c\/strong\u003e engines, oil bypass and rich fuel trim conditions accelerate substrate fouling, restricting downstream flow, elevating cylinder head exhaust backpressure, and generating persistent catalyst efficiency codes (\u003cstrong\u003eP0420 \/ P0430\u003c\/strong\u003e).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured with a durable 409 stainless steel outer casing, this direct-replacement assembly houses a high-flow ceramic honeycomb substrate loaded with active noble metal catalysts. Precision-stamped factory-style ball flanges and pre-threaded oxygen sensor bungs guarantee an exact alignment with OEM exhaust manifolds and Y-pipes, requiring zero cutting or TIG welding during service.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Direct-Fit Stainless Steel Catalytic Converter Assembly\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;\"\u003e2009-2013 GMC Sierra, Yukon\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;\"\u003eGM Vortec (4.3L \/ 4.8L \/ 5.3L \/ 6.0L) \/ GMT900\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;\"\u003e195-367 hp \/ 260-375 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;\"\u003e50490, 3011803, 19437, OPCG4010, 645797, 50473\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\u003e2010-2013 GMC Sierra 1500 (4.3L, 4.8L, 5.3L, 6.0L)\u003c\/li\u003e\n  \u003cli\u003e2009-2013 Chevrolet Silverado 1500 (4.3L, 4.8L, 5.3L, 6.0L)\u003c\/li\u003e\n  \u003cli\u003e2009-2013 GMC Yukon (4.8L, 5.3L)\u003c\/li\u003e\n  \u003cli\u003e2010-2013 GMC Yukon (5.3L)\u003c\/li\u003e\n  \u003cli\u003e2009-2013 Chevrolet Tahoe (4.8L, 5.3L)\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 GMT900 Sierra, Yukon?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2009-2013 GMC Sierra and Yukon equipped with \u003cstrong\u003eVortec\u003c\/strong\u003e 4.3L, 4.8L, 5.3L, and 6.0L engines. \u003cstrong\u003eNot legal for sale, installation, or use in California, Colorado, New York, or Maine under CARB regulations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to weld this unit to complete the install?\u003c\/h4\u003e\n\u003cp\u003eNo, this assembly utilizes factory-style ball connection flanges and direct-bolt mounting tabs designed to mate directly with stock exhaust components without custom fabrication.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Truck Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand heavy payload demands and continuous thermal expansion under severe towing conditions, this direct-fit unit preserves full exhaust scavenging and OE emissions compliance on hardworking \u003cstrong\u003eGMT900\u003c\/strong\u003e work trucks and SUVs.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67901653287160,"sku":"DS-EXS0DKKFW","price":256.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-gmc-sierra-yukon-2009-2013-4-3l-4-8l-5-3l-6-0l-1.jpg?v=1793340261","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-gmc-sierra-yukon-2009-2013-4-3l-4-8l-5-3l-6-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}