Kubota “M108 Series” Tractor Regulator Valve Assembly – YW17700104. This listing is for a replacement regulator valve assembly which is applicable for use with the following Kubota “M108 Series” tractor models. M108SDTC (Serial numbers =>72916). If you are unsure whether this is the correct item for your machine, please supply us with your details and we will attempt to confirm correct fitment for you. This item is supplied with it’s original packaging which may be shop soiled from storage but the item itself is offered in as-new condition having not been fitted before.