This hose kit was part of a preventative maintenance water pump replacement project. They are indeed OEM replacements. Mishimoto R&D is perfect for this application as the fit was perfect. Some people want OEM replacement parts (so order them black), but I liked adding some bling and letting people know the job was done with the new parts. It's worth using Mishimoto's upgraded parts with OEM clutches, as is the case with OEM plastic clutches. become brittle over time and can be a source of leaks at high pressure and temperature in the cooling system.