Genuine OEM Volkswagen Adjusting Washer, part number WHT009276AJ. This washer is a crucial component for maintaining precise gear mesh and bearing preload within the differential assembly. It is located within the differential housing. Made from durable steel, it ensures long-lasting performance and proper function. Genuine OEM adjusting washers are manufactured to exact tolerances to ensure correct gear meshing and bearing preload, preventing premature wear and noise.