Bosch 0444021013 Diesel Exhaust Fluid (DEF) Module Bosch Metering Module Go to amazon.com Related posts Top 10 bmw diesel nozzle for 2022 FeatureBrand New Bosch Diesel Emission Fluid (DEF) Injection NozzleBMW OE#: 18 30 7 807 206Bosch #: 0-444-021-013 DescriptionBosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.