Walker Rear Oxygen Sensor sku-10987367088 463870904890
No rating yet(0 ratings)Walker Products' downstream rear oxygen (O2) sensor fits a 2011 Toyota Sienna 3.5L V6. It is listed under Exhaust Parts & Emissions Parts (sku-10987367088, UPC 463870904890). Its protective coating, sensing element and integrated heater bring it to operating temperature in seconds, helping speed closed-loop activation and reduce cold-start time.
Walker describes its activation time as one of the fastest in the industry. Designed to meet OE standards within close tolerances, the sensor has a damage-tolerant housing that protects its ceramic element against silicone and lead poisoning. Porous PTFE lets atmospheric oxygen enter while keeping water and engine grime out.
Walker Products also makes fuel injectors, throttle position sensors and other fuel-system parts intended to support engine efficiency and performance. The company describes its automotive parts as precision engineered and used by professional mechanics and DIY enthusiasts, and offers customer support.
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