2.5L TFSI shaft seal for the crankshaft on the flywheel side. Fits all 2.5L TFSI engines in the Audi TTRS and RS3. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com