Sierra International 18-7267 Marine Fuel Pump Sierra Snapper Clamp Meets or exceeds the original equipment quality Sierra part number: 18-8021-9 Interchangeable with the following: Evinrude/Johnson 911616, OMC 911616, Volvo Penta 3852529 Clamp Range: .597" - .665" or 15.2mm - 16.9mm