Hose Primer Assembly Red, Replaces: Ryobi 181801, Ryobi 181168, Ryobi 181558, Ryobi 181801, Walbro 188-512, Walbro 188-512-1 Hose Primer Assembly Red Replaces: Ryobi 181801, Ryobi 181168, Ryobi 181558, Ryobi 181801, Walbro 188-512, Walbro 188-512-1