Genuine OEM Volkswagen Exhaust Manifold Stud, part number 057253099D. This stud is used to securely fasten the exhaust manifold to the engine cylinder head, ensuring a tight and leak-free seal. It is a critical component in the exhaust system assembly, designed to withstand high temperatures and vibrations. Weighing 0.0188 kg and measuring 0.105 meters in length, this stud provides reliable mounting. Using a genuine OEM stud ensures the correct thread pitch, material strength, and heat resistance required for the demanding environment of the exhaust system.