Review on 🔧 Yemtuls 6604 Transmission Fluid Fill Adapter - Ford 5R55W & 5R55S Compatible/Replacement Tool for Ford 307-437 & OTC 6604 Tools with 304 Stainless Steel Clamp Included by Hector Smith

Installed in the filler hole on the drain plug. I hand tightened mine for easy removal after pumping in new fluid. Any hand pump that fits the bottles will do. I bought an extra 3/8" ID hose so I didn't have to run the pump under the car. I noticed that my particular pump was holding a vacuum so I had to detach the hose to check when the sump was full enough ie dripping from the filler hole.It took a little less than 6 liters to install the sump, change the filter and go through the filling procedures including warming up the gearbox.For the sake of interest I noticed that only the drain plug was removed and refilling only took 2 liters so I removed the pan and replaced the filter to pour out more of the old liquid. This little tool made the refilling process smooth.