The Fendt F835970020011 is a genuine OEM AdBlue NOx Sensor, specifically the Upstream Gen 2 version, designed for Fendt agricultural machinery. This critical component plays a vital role in the exhaust gas aftertreatment system, accurately measuring nitrogen oxide (NOx) levels before the selective catalytic reduction (SCR) process. Proper functioning of this sensor is essential for maintaining engine efficiency, reducing harmful emissions, and ensuring compliance with environmental regulations. As an OEM part, it guarantees precise fitment and reliable performance, crucial for the longevity and operational integrity of your Fendt equipment.