Timing Belt Kits, found under Service Parts > Major Service, are comprehensive packages designed to facilitate the replacement of a vehicle's timing belt and associated components. These kits are essential for maintaining the precise synchronization of the engine's crankshaft and camshaft(s), ensuring correct valve timing for optimal performance and preventing catastrophic engine damage. Typically used in both passenger cars and commercial vehicles, these kits often include the timing belt itself, tensioners, idler pulleys, water pump (in some applications), and seals. Replacing these components together during a major service interval extends the life of the timing system and prevents future failures. Examples in our catalog include Febi MPN FEBI38248, and various Bosch kits like MPN 1987946046 and 1987947926.