Genuine OEM Volkswagen Rear Axle Differential Crown Nut, part number WHT001154. This specialized nut is designed to securely fasten and retain components within the rear axle differential assembly. Its robust construction ensures that critical drivetrain parts remain correctly positioned and torqued. The nut is made from high-strength steel, providing reliable clamping force and resistance to loosening under dynamic loads. Using a genuine OEM crown nut guarantees the correct thread pitch, material strength, and dimensions for the demanding environment of the differential, preventing premature wear and potential failure.