{"product_id":"02-03-nissan-altima-sentra-2-5l-3-5l-front-oxygen-sensor","title":"02-03 Nissan Altima\/Sentra 2.5L 3.5L Front Oxygen Sensor","description":"\u003cdiv class=\"product-container\"\u003e\n\u003ch6 class=\"product-title\"\u003e02-03 Nissan Altima\/Sentra 2.5L 3.5L Front Oxygen Sensor\u003c\/h6\u003e\n\u003cdiv class=\"product-intro\"\u003e\n\u003cp class=\"lead-text\"\u003e\u003cstrong\u003eDirect-fit O2 sensor for Altima and Sentra—critical for fuel trim and emissions monitoring.\u003c\/strong\u003e Factory replacement part engineered to match OEM specifications and sensor voltage response. Handles both the 2.5L and 3.5L engine variants across 2002–2003 model years.\u003c\/p\u003e\n\u003cdiv class=\"trust-indicators\"\u003e\n\u003cspan class=\"badge\"\u003e✓ Ships from FL Warehouse\u003c\/span\u003e \u003cspan class=\"badge\"\u003e✓ In-House Quality Check\u003c\/span\u003e \u003cspan class=\"badge\"\u003e✓ Direct-from-Warehouse\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch6 class=\"section-title\"\u003eKey Features\u003c\/h6\u003e\n\u003cdiv class=\"design-features\"\u003e\u003cul class=\"feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-position mounting\u003c\/strong\u003e - Reads exhaust gas before the catalytic converter for accurate closed-loop fuel control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-equivalent construction\u003c\/strong\u003e - Matches factory sensor resistance and thermal response for no CEL issues\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-engine compatibility\u003c\/strong\u003e - Works with both 2.5L and 3.5L powerplants in the same model year\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003ch6 class=\"section-title\"\u003eSpecs\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eOxygen sensor assembly, front-mount position\u003c\/li\u003e\n\u003cli\u003e2002–2003 Nissan Altima and Sentra\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6 class=\"section-title\"\u003eWhats Included\u003c\/h6\u003e\n\u003cul\u003e\u003cli\u003eOxygen sensor\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch6 class=\"section-title\"\u003eFrequently Asked Questions\u003c\/h6\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp\u003e\u003cstrong\u003eWill this throw a check engine light if my old sensor is bad?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo—replacing a failing O2 sensor clears the fault condition once the new sensor reads steady voltage to the ECU. If the light returns after install, the problem lies elsewhere in the fuel or emissions system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need any special tools or an oxygen sensor socket to install this?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn O2 sensor socket (usually 22mm or 7\/8\") makes removal and installation easier, but a wrench works if you have clearance. The sensor threads directly into the exhaust manifold or downpipe—no adapters needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install this myself, or do I need a shop?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDIY installation is straightforward if you're comfortable working around the exhaust. Disconnect the sensor electrical connector, unscrew the old sensor, thread in the new one, and reconnect. Let the exhaust cool first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K2 Industries","offers":[{"title":"Default Title","offer_id":48610374287543,"sku":"K2-10836-NIS-006-EC","price":109.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/milkymotorsports.com\/products\/02-03-nissan-altima-sentra-2-5l-3-5l-front-oxygen-sensor","provider":"Milky Motorsports","version":"1.0","type":"link"}