Western 27170 Ultra Mount to Unimount Adapter; This easy-to-use UltraMount to UniMount conversion kit enables you to attach a UniMount plow to a vehicle equipped with an UltraMount System vehicle mount. This kit is perfect if you have multiple snowplows, providing your fleet with versatility while changing to the UltraMount System. It is also ideal when transferring an old UniMount plow to a late model vehicle. When you are ready to replace the UniMount plow, the truck will already be equipped with the mount and wiring for an UltraMount plow. Designed for use with all Standard, PRO, and 8.5 MVP UniMount plows.