{"product_id":"o2-oxygen-sensor-upstream-downstream-for-toyota-tacoma-2001-2004-2-4l","title":"O2 Oxygen Sensor Upstream Downstream for Toyota Tacoma (2001-2004) 2.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream and Downstream Oxygen Sensor Kit for 2001-2004 Toyota Tacoma (N140\/N150)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Upstream and Downstream Oxygen Sensor Kit replaces degraded factory exhaust sensors on the 2001-2004 Tacoma to restore accurate air-fuel ratio feedback, eliminate check engine lights, and recover lost fuel economy.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tacoma Sensor Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory zirconia and planar sensors on the \u003cstrong\u003e2RZ-FE\u003c\/strong\u003e platform endure thousands of high-heat cycles, unburned fuel residue, and oil blow-by. Over mileage, the stock internal ceramic substrate becomes carbon-fouled and sluggish. This thermal fatigue causes delayed closed-loop switching times, poor stoichiometric air-fuel control, tailpipe emissions spikes, and diagnostic trouble codes such as P0135, P0141, or catalyst degradation codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact OEM specifications, this matched sensor pair restores real-time millivolt signal fidelity to the powertrain control module. Featuring laser-welded 304 stainless steel sensor bodies, dual-layer protective shielding, and factory-impedance ceramic heating elements, these units resist soot buildup and thermal shock. Precision direct-fit harness plugs and flange configurations match OEM cross-references \u003cstrong\u003e89467-35050\u003c\/strong\u003e and \u003cstrong\u003e89465-09360\u003c\/strong\u003e, preventing signal resistance drift and erratic fuel trims.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Upstream Oxygen \/ Air-Fuel Ratio Sensor\u003c\/li\u003e\n  \u003cli\u003e1x Downstream Oxygen Sensor\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;\"\u003e2001-2004 Toyota Tacoma\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\u003e2RZ-FE\u003c\/strong\u003e \/ \u003cstrong\u003eN140 \/ N150\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;\"\u003e142 hp \/ 160 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;\"\u003e13-1440, 13618, 234-4189, 234-9001, 24559, 24568, 75-2633, 89465-09360, 89467-35050, ES20193, OS1600, SG788, 213-2857, OS1514, 13613, 75-2233, ES10944, 24669, SG761, SG1865\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\u003e2001 Toyota Tacoma Base \/ DLX 2.4L L4\u003c\/li\u003e\n  \u003cli\u003e2002 Toyota Tacoma Base \/ DLX 2.4L L4\u003c\/li\u003e\n  \u003cli\u003e2003 Toyota Tacoma Base \/ DLX 2.4L L4\u003c\/li\u003e\n  \u003cli\u003e2004 Toyota Tacoma Base 2.4L L4\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 N140 \/ N150 Tacoma?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2001-2004 Toyota Tacoma equipped with the \u003cstrong\u003e2RZ-FE\u003c\/strong\u003e 2.4L engine. \u003cstrong\u003eDoes not fit 2.7L (3RZ-FE) or 3.4L V6 (5VZ-FE) models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo these sensors require wire cutting or splicing?\u003c\/h4\u003e\n\u003cp\u003eNo, both sensors feature vehicle-specific wiring harness lengths and factory-style connectors for complete plug-and-play installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Standard\u003c\/h3\u003e\n\u003cp\u003eThe first-generation Tacoma is built for rugged dependability and hard-working service; preserving precise closed-loop fueling safeguards your catalytic converter, stabilizes idle characteristics, and protects your engine under heavy payload hauling.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551327027448,"sku":"DS-EJX00L443","price":67.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-toyota-tacoma-2001-2004-2-4l-1.jpg?v=1790795106","url":"https:\/\/performancechiptuning.com\/de\/products\/o2-oxygen-sensor-upstream-downstream-for-toyota-tacoma-2001-2004-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}