Sierra 18-3390 Water Pump Kit without Housing The Sierra 18-3390 Water Pump Kit without Housing is interchangeable with the following: GLM 12104, Evinrude/Johnson 0395060, 0435447, 0434421, 5001594, Mallory 9-48210. Each Sierra product meets or exceeds the original equipment part it replaces. Sierra Water Pump Kit without Housing Meets or exceeds the original equipment quality Sierra part number: 18-3390 Interchangeable with the following: GLM 12104, Evinrude/Johnson 0395060, 0435447, 0434421, 5001594, Mallory 9-48210