2PCS O2 Oxygen Sensor Upstream Downstream for Toyota Sienna 3.3L V6 04-06

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• REPLACES NUMBER: 234-4168, 2344168, 234-9042, 2349042, 89467-48050, 89465-08040, 8946748050, 8946508040
• SPECIFICATIONS: Package: 2 x Oxygen Sensors in box; Sensor Type: Heated; Mounting Type: Threaded; Wire Quantity: 4; Placement on Vehicle: Upstream and Downstream; Connector Gender: male; Length: 14.96in (234-4168), 13.77in (234-9042)
• PERFORMANCE: Built for a long lifespan, A-PEXNOVA O2 sensors feature a rugged stainless steel housing and pre-coated threads. They work to maintain the correct fuel mixture, ensuring complete combustion for better fuel economy and restoring the smooth, responsive driving performance you can feel.
• FUNCTION: The oxygen sensor continuously measures oxygen content in the engine and sends real-time voltage signals to the ECU. Common symptoms of a faulty sensor are poor mileage, rough idling, and hard starts. When the check engine light comes on, it often indicates oxygen sensor issues—use an OBD II scanner to retrieve the specific fault code.
• DIRECT REPLACEMENT: Designed as a precise match for your vehicle’s OE part—no modifications needed. Simply take away the old unit and install the replacement one for a seamless fit. For best results, please confirm your vehicle’s exact specifications: make, model, year, trim, number of doors, and engine. Before installation, ensure the connector matches your vehicle's OE connector exactly.