日产英菲尼迪3.5L后氧传感器 22691-AR210 22690AL600 精准安装

For Nissan/Infiniti 3.5L models (e.g., G35, FX35), rear oxygen sensor with OEM numbers 22690-8J001, 22691-AR210, 234-4301, 234-4296, precisely fitted. Uses high-purity zirconia ceramic element and heat-resistant alloy housing; in high-temperature exhaust environments it resists aging. Signal response is consistent with original; lifespan 80,000-100,000 km. Real-time monitoring of exhaust oxygen to help ECU adjust air-fuel ratio, ensuring emissions compliance and fuel economy. Installation requires removing the old sensor; difficulty: medium.