The Zetor 10186026 pinion is a genuine replacement part designed for various Zetor tractor models, including the 3320, 3321, 3340, 3341, 4320, 4321, 4340, 4341, 5320, 5321, 5340, 5341, 6320, 6321, 6340, 6341, 7320, 7321, 7340, and 7341 series. This essential component features 10 teeth, an outer diameter of 51 mm, and a length of 95 mm, with a weight of 0.12 kg, ensuring precise fit and reliable performance in Zetor agricultural machinery.