This is a specific replacement part for Toro Dingo compact utility loaders. It’s the female bulkhead hydraulic coupler – that’s the larger connector on the Dingo machine itself, where you hook up various hydraulic attachments (like augers, trenchers, etc.). This is for the newer style \flush face\ quick-connect couplers used on most modern Dingos (it does NOT fit the older model style or the TX 413). The coupler is brand new OEM (original equipment manufacturer) quality, so it’s an exact match. Before you buy, it’s super important to check your machine’s existing coupler against the product pictures to make sure this is the right style and size. This listing is for one single coupler. If your Dingo’s coupler is worn, leaking, or damaged, this is the part you need to get your attachments connecting smoothly and securely again. Fits both tracked and wheeled Dingo models that use this coupler type.