Sierra International 18-7229 Flame Arrestor Sierra Flame Arrestor Meets or exceeds the original equipment quality Sierra part number: 18-7229 Interchangeable with the following: Mercruiser 85785T, 85785-2, OMC 981566, 0986865, 3854026, Volvo Penta 3854026 Element: 1.470; Height: 2.250; Throat: 5.050; Vent Tubes: 0