The ole' WD/WD45 Tractors are one tough Tractor, so you need a tough Starter motor in them to make sure they get to work on time! Our 1107951 Delco is just that. Its one tough unit! Whether we rebuild your unit or if we have an exchange at the time, you'll be happy as a clam with the performance of this unit when we get done with it! Armature tightly rewound for more torque on 6 volts. You'll think there's a 12V Battery in the box!  Fits the 201 & 226 Gas engines.