The Claas 00123370 Control Unit is an authentic OEM electronic component designed for various Claas agricultural tractors. This essential module ensures proper system function and compatibility across models including ARION 400, 500, 600 series, AXION 800, 900 series, ATOS, ELIOS, and NEXOS series. Weighing 0.20 kg with dimensions of 100 mm length, 100 mm width, and 50 mm height, it provides reliable performance for critical machine operations.