This oil drain valve fits most engine models 8 HP and larger with a 3/8"-18 NPTF (National Pipe Taper Fuel) thread, designed to provide a more leak-free seal. It connects to a 1/2" hose-to-outlet and comes with a protective dust cap. Replaces many OEM parts, including but not limited to the following: John Deere - AM119686, Kohler - 27-755-14-S, Stens - 125-237, Kohler - 27-755-14S, Kohler - 27 755 14-S, Tecumseh - 37651, Kohler - 27 755 14S, Stens - 125-508, Rotary - 6783.