Genuine OEM Ford Urea Def Exhaust Seal, part number 1935516. This seal is designed to prevent leaks within the Diesel Exhaust Fluid (DEF) exhaust system. It is a small but critical component for maintaining the integrity of the emissions control system. The seal is made from durable rubber material to withstand exhaust temperatures. Genuine OEM parts ensure precise fitment and reliable performance, crucial for emissions components.