The J & N 30044031 Armature A is a genuine 12V replacement component designed for various Kubota tractor models. This armature features a 104.5mm outer diameter, 160mm overall length, and a 17mm shaft OD with 10 splines. It includes a 32mm commutator with 28 bars, 28 coils, and 28 leads, ensuring reliable performance in starter applications. Weighing approximately 1.8 kg, this armature is a direct replacement for OEM part numbers like Kubota 3A011-74110 and aftermarket equivalents from Lester, WAI, and Arrowhead.