This control valve is a genuine MTD part, sold individually. This control valve can be used as a replacement part for a log splitter or a wood chipper. The purpose of the control valve for a log splitter or a wood chipper is to facilitate and regulate the motion of the cylinder head.The control valve might eventually have to be replaced at some point within the standard lifespan of the equipment if the component is not functioning as it usually does. This could occur if the control valve has suffered damage that has rendered it broken, malfunctioning, or in some state of disrepair. If this is not able to be fixed by basic repair, the component should be removed and replaced by this genuine OEM replacement part. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. Always unplug the appliance before performing any kind of repair or replacement.This is an OEM part sourced directly from the manufacturer. It is sold individually. This control valve is compatible with the following outdoor appliance brands: MTD, Troy-Bilt, Yard Man, Bolens, Ryobi, Craftsman, Yard Machines, and MasterCut.