The Claas 0021607122 Expansion Vase is a genuine OEM component designed for various Claas agricultural machinery. This essential part, also known as an expansion tank, helps manage coolant volume changes due to temperature fluctuations in the engine cooling system. It ensures optimal engine performance and prevents pressure buildup. Measuring 300mm in length, 150mm in width, and 150mm in height, and weighing approximately 0.60 kg, this expansion vase is compatible with numerous Claas ARION, AXION, XERION tractor series, JAGUAR forage harvesters, and LEXION, TUCANO, AVERO combine harvesters.