{"product_id":"catalytic-converter-for-hyundai-tucson-2017-2020-2-0l-2-4l-rear","title":"Catalytic Converter for Hyundai Tucson (2017-2020) 2.0L 2.4L Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Rear Catalytic Converter for 2017-2020 Hyundai Tucson (TL)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This direct-fit rear underbody catalytic converter replaces the factory unit on the \u003cstrong\u003eTL\u003c\/strong\u003e-chassis 2017-2020 Hyundai Tucson equipped with the \u003cstrong\u003eNu 2.0L G4NC\u003c\/strong\u003e or \u003cstrong\u003eTheta II 2.4L G4KJ\u003c\/strong\u003e inline-four engine to restore compliant conversion of hydrocarbons, carbon monoxide, and nitrogen oxides.\u003c\/p\u003e\u003ch3\u003eThe Stock Hyundai Tucson Catalytic Converter Failure\u003c\/h3\u003e\u003cp\u003eOver high mileage and repeated thermal cycling, the factory rear converter on the \u003cstrong\u003eTL\u003c\/strong\u003e Tucson with the \u003cstrong\u003eNu 2.0L G4NC\u003c\/strong\u003e or \u003cstrong\u003eTheta II 2.4L G4KJ\u003c\/strong\u003e engine suffers from precious-metal washcoat sintering and ceramic substrate fracture. Fuel trim imbalances, cold-start misfires, and road-salt corrosion accelerate cell melting and mat erosion inside the shell. Once the honeycomb brick breaks loose or clogs, exhaust backpressure spikes while downstream oxygen storage capacity drops below ECU thresholds, triggering persistent \u003cstrong\u003eP0420\u003c\/strong\u003e or \u003cstrong\u003eP0430\u003c\/strong\u003e catalyst efficiency faults.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Catalytic Converter\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \/ Efficiency DTCs:\u003c\/strong\u003e Stored \u003cstrong\u003eP0420\u003c\/strong\u003e or \u003cstrong\u003eP0430\u003c\/strong\u003e codes triggered when the post-catalyst oxygen sensor mirrors upstream switching waveforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetallic Underbody Rattle:\u003c\/strong\u003e Loose or fractured ceramic honeycomb chunks vibrating inside the converter housing during idle, deceleration, or road bumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Backpressure \u0026amp; Failed Inspections:\u003c\/strong\u003e Sluggish throttle response under load, sulfur exhaust odor, and automatic failure of OBD-II emissions readiness testing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Stainless Catalytic Converter Solution\u003c\/h3\u003e\u003cp\u003eBuilt to match factory underbody geometry (part #\u003cstrong\u003e16646\u003c\/strong\u003e), this EPA-compliant replacement uses a corrosion-resistant stainless steel body (8-inch length, 5-inch height) and tubular piping to withstand thermal shock and underbody moisture. Inside, a high-flow ceramic honeycomb substrate coated with precious-metal washcoat restores HC, CO, and NOx conversion for \u003cstrong\u003eOBD-II\u003c\/strong\u003e readiness without restricting exhaust scavenging. It retains the OEM 2-bolt inlet flange, welded hanger, slip-fit outlet, and single post-catalyst oxygen sensor port for a true bolt-on repair with zero cutting or welding.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 x Rear Underbody Catalytic Converter (Part #16646)\u003c\/li\u003e\n\u003cli\u003e1 x 2-Bolt Flange Gasket\u003c\/li\u003e\n\u003cli\u003e1 x U-Clamp\u003c\/li\u003e\n\u003cli\u003e2 x Bolts with Nuts and Washers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\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;\"\u003e2017-2020 Hyundai Tucson\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;\"\u003eNu 2.0L G4NC I4 (2017-2020) \u0026amp; Theta II 2.4L G4KJ I4 (2018-2020) \/ TL\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;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEPA Federal (46-State Legal) \/ Ceramic Honeycomb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Cutting or Welding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2017-2020 Hyundai Tucson 2.0L I4:\u003c\/strong\u003e Fits SE, Value, SEL, and Limited trims (Rear Underbody Position).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2018-2020 Hyundai Tucson 2.4L I4:\u003c\/strong\u003e Fits 2018, 2019, and 2020 models only (Rear Underbody Position).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcluded Applications:\u003c\/strong\u003e Does NOT fit 2017 Hyundai Tucson 2.4L models or any Tucson equipped with the 1.6L Turbo engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmissions Restriction:\u003c\/strong\u003e EPA Federal compliant only; not CARB approved and not legal for vehicles registered in California, New York, Colorado, or Maine.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the TL Tucson?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2017-2020 Hyundai Tucson equipped with the \u003cstrong\u003eNu 2.0L G4NC\u003c\/strong\u003e engine and 2018-2020 models with the \u003cstrong\u003eTheta II 2.4L G4KJ\u003c\/strong\u003e engine. \u003cstrong\u003eIt does NOT fit the 2017 Tucson 2.4L, any 1.6L Turbo model, or vehicles registered in CARB-regulated states (CA, NY, CO, ME).\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0420\/P0430 codes, and are O2 sensors included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, if the fault stems from a depleted converter—oxygen sensors are not included.\u003c\/strong\u003e Installing a fresh ceramic substrate restores downstream oxygen storage to clear \u003cstrong\u003eP0420\u003c\/strong\u003e\/\u003cstrong\u003eP0430\u003c\/strong\u003e codes once upstream leaks, misfires, and fouled O2 sensors are resolved. Transfer your existing post-catalyst oxygen sensor or install a new OEM-spec sensor into the single factory port.\u003c\/p\u003e\u003ch4\u003eAre gaskets and mounting hardware included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The kit supplies the 2-bolt inlet flange gasket, outlet U-clamp, and two mounting bolts with nuts and washers. Allow the exhaust to cool completely, treat seized fasteners with penetrating oil, compare the unit against your original assembly before fitment, torque fasteners evenly, and inspect every joint for leaks at startup.\u003c\/p\u003e\u003ch3\u003eThe Hyundai Precision Standard\u003c\/h3\u003e\u003cp\u003eEngineered for daily-driven reliability on the \u003cstrong\u003eTL\u003c\/strong\u003e platform, this stainless rear converter maintains exact ECU backpressure targets and clean tailpipe chemistry over years of road-salt and heat-cycle exposure. Expect quiet underbody operation, leak-free flange sealing, and consistent OBD-II emissions compliance across all 46 federal-emissions states.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68085484290296,"sku":"DS-E0JGC8DC9","price":196.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-hyundai-tucson-2017-2020-2-0l-2-4l-rear-1.jpg?v=1794544894","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-hyundai-tucson-2017-2020-2-0l-2-4l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}