This hub nut is designed for various Mercedes-Benz models including Vito Bus (W639), Viano (W639), Vito / Mixto Box (W639), V-Class (W447), Vito Box (W447), Vito Tourer (W447), and Marco Polo Camper (W447). It features a male hex bolt head/nut design with an inner thread size of M29 x 1.5 and an outer diameter of 48mm. The spanner size required is 41mm, and the thickness is 22mm. The fitting position can be on the rear axle (both sides) or the front axle (both sides, left, or right). The part numbers associated with this product are 0039908250 and A0039908250.