The McCormick 6676566A1 pinion is a genuine OEM replacement part designed for various McCormick X-series tractors, including X4, X5, X6, X7, and X8 models. This essential gear ensures reliable power transmission within the machinery. It is also compatible with a wide range of Landini and Valpadana tractor models. Manufactured to precise specifications, this original part weighs 0.12 kg and measures 95 mm in length, 95 mm in width, and 51 mm in height, guaranteeing optimal fit and performance.