{"product_id":"o2-oxygen-sensor-upstream-downstream-for-chevrolet-silverado-1500-tahoe-2006-2007-4-8l","title":"O2 Oxygen Sensor Upstream Downstream for Chevrolet Silverado 1500 Tahoe (2006-2007) 4.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Oxygen Sensor Kit for 2006-2007 Chevrolet Silverado and Tahoe (GMT800 \/ GMT900)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The oxygen sensor kit replaces degraded factory pre- and post-catalytic sensors on 2006-2007 Silverado and Tahoe models to restore precise air-fuel ratio closed-loop feedback and clear diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Silverado, Tahoe Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory zirconia elements in the \u003cstrong\u003eGMT800\u003c\/strong\u003e and early \u003cstrong\u003eGMT900\u003c\/strong\u003e exhaust streams experience severe thermal fatigue and chemical contamination over time. Oil blow-by, carbon deposits, and thermal cycling degrade the protective ceramic coating, causing lazy voltage switching between rich and lean states. This sensor latency forces the powertrain control module into an overly rich default trim, driving down fuel economy, fouling spark plugs, and triggering persistent Check Engine lights for catalytic efficiency (P0420\/P0430) or heater circuit malfunctions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed with laser-welded stainless steel bodies, high-temperature ceramic sensing cells, and integrated internal heaters, these sensors restore sub-100-millisecond response rates. Fast-acting heater elements achieve closed-loop operational temperature rapidly upon cold starts to minimize unburned hydrocarbons. Factory-terminated weather-pack harness connectors and pre-coated anti-seize threads prevent galling in cast manifolds or exhaust bungs, ensuring plug-and-play installation without wire splicing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 x Upstream Oxygen Sensors\u003c\/li\u003e\n  \u003cli\u003e2 x Downstream Oxygen Sensors\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;\"\u003e2006-2007 Chevrolet Silverado 1500, Tahoe\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;\"\u003e4.8L V8 (Vortec 4800 LR4) \/ GMT800, 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;\"\u003e285 hp \/ 295 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;\"\u003eJ578459, 234-4018, 19178928, 19355308, 234-4066, 234-4112, 234-4337, 2344066, 25312197, ES20002, ES20051, SG274, SG277, 12589321, 19178958, 19209815, 19355306, 213-3533, 213-3538, AA12578459, 19209814, 213-1553, 2131553, 234-4025, 234-4087, 234-4646, 234-4819, 2344025, 2344087, 2344646, 2344819, 250-24087, 250-24340, 25024087, 25024340\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\u003e2006 Chevrolet Silverado 1500 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2007 Chevrolet Silverado 1500 4.8L V8 (Classic \u0026amp; New Body)\u003c\/li\u003e\n  \u003cli\u003e2006 Chevrolet Tahoe 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2007 Chevrolet Tahoe 4.8L V8\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 GMT800 and GMT900 Silverado\/Tahoe?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2006-2007 Chevrolet Silverado 1500 and Tahoe equipped with the \u003cstrong\u003e4.8L LR4 Vortec\u003c\/strong\u003e V8; confirm your engine displacement matches 4.8L before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eDo these sensors require wire splicing or aftermarket adapters?\u003c\/h4\u003e\n\u003cp\u003eNo, these sensors feature factory-style direct-fit harness pinouts designed to plug directly into the OEM wiring looms.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Truck Standard\u003c\/h3\u003e\n\u003cp\u003eMaintained oxygen sensor response ensures stable stoichiometry under heavy hauling and towing conditions, protecting exhaust catalysts from unburned fuel wash and recovering original Vortec engine efficiency.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551484444920,"sku":"DS-E6M2L983R","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-chevrolet-silverado-1500-tahoe-2006-2007-4-8l-1.jpg?v=1790797059","url":"https:\/\/performancechiptuning.com\/fr\/products\/o2-oxygen-sensor-upstream-downstream-for-chevrolet-silverado-1500-tahoe-2006-2007-4-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}