Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Melling oil pump screen installation tools provide an easy method for installing a press-fit oil pump screen into the oil pump correctly without damaging the oil pump screen. Melling oil pump screen installation tools are precision manufactured from high quality materials for worry free performance every time. Melling offers oil pump screen installation tools for both 5/8 In. and 3/4 In. diameter tubes.