Genuine OEM Volkswagen Flange Shaft Nut, part number 087409373. This nut is used to secure the flange shaft in the differential assembly. It is located on the flange shaft within the transmission and drivetrain system. Manufactured to precise specifications for a secure fit and reliable torque, it is essential for the proper functioning of the differential. Genuine OEM parts ensure the integrity of drivetrain components and prevent premature wear.