{"product_id":"denso-234-4053-oxygen-sensor-upstream","title":"Denso 234-4053 Oxygen Sensor - Upstream","description":"\u003ch2\u003eOE Style Oxygen Sensor\u003c\/h2\u003e\u003cp\u003eThis Denso oxygen sensor is a specific-fit replacement built to OE standards for accurate installation and dependable engine management. It is a heated sensor with a 4-wire design and a 22.80-inch wiring harness, making it a direct match for the listed application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE Style replacement from Denso for exact-fit service.\u003c\/li\u003e\n\u003cli\u003eHeated oxygen sensor design for faster operating response.\u003c\/li\u003e\n\u003cli\u003e4-wire configuration for the specified application.\u003c\/li\u003e\n\u003cli\u003e22.80-inch wiring harness for proper routing and connection.\u003c\/li\u003e\n\u003cli\u003ePrecision-built to meet strict OE-level standards.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDenso 234-4053 is an OE Style oxygen sensor engineered as a specific replacement for the listed Toyota Pickup upstream application. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine performance and fuel control over time. As an OE-style part, it is built for first-time fit and consistent signal performance in emission control service. This part cross-references Toyota 8946539165 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light concerns related to oxygen sensor performance.\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel mixture readings from a worn sensor.\u003c\/li\u003e\n\u003cli\u003eReduced fuel economy caused by slow or inaccurate sensor response.\u003c\/li\u003e\n\u003cli\u003eEmission control faults tied to upstream sensor failure.\u003c\/li\u003e\n\u003cli\u003eHard starting or rough running linked to poor exhaust feedback.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 1988 Toyota Pickup, upstream. Confirm connector style, harness routing, and sensor location before installation. Use the part number 234-4053 to verify the exact application against the vehicle’s original sensor specification.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDenso manufactures and tests this oxygen sensor to strict OE standards for exact replacement fit and consistent performance. The 234-4053 part number identifies the correct OE Style application for the listed vehicle.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":53333415329973,"sku":"BBNF-234-4053","price":96.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2344053_Fro.jpg?v=1789714448","url":"https:\/\/www.partcatalog.com\/products\/denso-234-4053-oxygen-sensor-upstream","provider":"PartCatalog","version":"1.0","type":"link"}