The McCormick 3557649M2 is a genuine gearbox pinion designed for reliable power transmission in agricultural machinery. This essential component features 17 teeth, ensuring precise engagement and smooth operation within the transmission system. Manufactured to OEM specifications, it provides durability and optimal performance for a range of Massey Ferguson and McCormick tractor models. With a length of 95 mm, width of 51 mm, and a weight of 0.12 kg, this pinion is engineered for a perfect fit and long-lasting service life.