Crankshaft / Power Steering Seal Puller set. It is a specific removal hook used remove oil seals on Volkswagen and Audi engines. Key Details and Applications: Function: Used to pry out/remove sealing rings and oil seals, particularly for the crankshaft oil seal on the timing chain end and in the power steering pump drive. Compatibility: Designed for various VW/Audi series vehicles. System Component: The T20143 kit includes both T20143/1 and T20143/2 puller hooks. Manufacturer: OEM MADE IN GERMANY Common Usage: Replacing crankshaft oil seals (timing chain end). Removing sealing rings in power steering pump drives. Generally used for engine gearbox shaft oil seal removal.