{"product_id":"bosch-0444021021-diesel-exhaust-fluid-def-module","title":"Bosch 0444021021 Diesel Exhaust Fluid (DEF) Module","description":"\u003ch2\u003eOverview of Bosch Actual OE Urea Metering Module (New)\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Urea Metering Module (New) is designed to precisely control the dosing of Diesel Exhaust Fluid (DEF) in select diesel vehicles. Engineered for compatibility with Audi, Porsche, and Volkswagen models, this module ensures optimal emission control performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Bosch part number 0444021021\u003c\/li\u003e\n\u003cli\u003eDesigned for Diesel Exhaust Fluid (DEF) systems\u003c\/li\u003e\n\u003cli\u003eCompatible with Audi A6 Quattro, A7 Quattro, A8 Quattro\u003c\/li\u003e\n\u003cli\u003eFits Porsche Cayenne and Volkswagen Passat, Q5, Q7, Touareg\u003c\/li\u003e\n\u003cli\u003eOne unit per vehicle application\u003c\/li\u003e\n\u003cli\u003ePackaged as one case per pallet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details: Actual OE Urea Metering Module (New)\u003c\/h2\u003e\u003cp\u003eThe Actual OE Urea Metering Module (New) line from Bosch represents a range of emission components specifically engineered to meet original equipment standards. This product line focuses on precise DEF metering to maintain compliance with emission regulations and support the performance of diesel engines in premium vehicles. The 0444021021 module is part of this line, ensuring reliable integration with the vehicle’s emission control system.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Bosch Diesel Exhaust Fluid (DEF) Module is a critical component in the emission control system of diesel-powered Audi, Porsche, and Volkswagen vehicles. It accurately meters urea injection to reduce nitrogen oxide (NOx) emissions, helping the vehicle meet stringent environmental standards. The module is designed for direct replacement and is compatible with models including the Audi A6 Quattro, A7 Quattro, A8 Quattro, Porsche Cayenne, and Volkswagen Passat, Q5, Q7, and Touareg. The part number 0444021021 ensures you receive the correct module for your vehicle’s DEF system.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper DEF dosing to reduce NOx emissions\u003c\/li\u003e\n\u003cli\u003eResolves emission system fault codes related to urea metering\u003c\/li\u003e\n\u003cli\u003eImproves diesel engine emission compliance\u003c\/li\u003e\n\u003cli\u003eAddresses DEF system malfunctions causing reduced engine performance\u003c\/li\u003e\n\u003cli\u003ePrevents potential damage to SCR catalyst due to incorrect DEF dosing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure vehicle compatibility with Bosch part number 0444021021 before installation\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer guidelines for DEF system handling and safety\u003c\/li\u003e\n\u003cli\u003eInspect DEF lines and connectors for damage during replacement\u003c\/li\u003e\n\u003cli\u003eReset emission system codes after installation to verify proper function\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for accurate calibration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBosch manufactures the Actual OE Urea Metering Module (New) to meet original equipment specifications, ensuring durability and reliable performance. This module undergoes rigorous quality control to maintain emission system integrity. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44532030668981,"sku":"BBHK-0444021021","price":157.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_0444021021_Fro.jpg?v=1775060836","url":"https:\/\/www.partcatalog.com\/products\/bosch-0444021021-diesel-exhaust-fluid-def-module","provider":"PartCatalog","version":"1.0","type":"link"}