This 6 Volt Voltage Regulator is designed as a replacement part for Farmall Tractors, compatible with models 100, 130, 140, 200, 230, 240, 300, 330, 340, 350, and 400. The regulator corresponds to part numbers 354234R91 and 360898R1, making it easier to identify the correct component for your tractor. Please note that this is a replacement part and model numbers are provided for reference purposes only. This product may not be compatible with every model variation, so verify fitability before ordering. The unit measures 1 inch in length and width, with a compact package weighing 1 pound. As a stored replacement part, minor cosmetic scratches may be present, though functionality remains unaffected. This voltage regulator helps maintain proper electrical system performance in your Farmall tractor. No assembly is required, and batteries are not needed for this component. Check your tractor's specifications and existing part numbers to ensure proper compatibility before purchase.