Genuine OEM Mercedes-Benz AdBlue Injection Nozzle, part number A0004901413. This component is responsible for precisely injecting AdBlue (Diesel Exhaust Fluid) into the exhaust stream to reduce harmful nitrogen oxide emissions. It is part of the vehicle's selective catalytic reduction (SCR) system. The nozzle is designed for optimal spray pattern and durability under high-temperature exhaust conditions. Genuine OEM parts are crucial for AdBlue injection nozzles to ensure correct fluid atomization, proper SCR system function, and compliance with emissions standards.