Water pipe seal for Volvo Penta RO: 418411 ? Exterior 20mm

High quality marine engine spare parts. Water pipe seal, common for the engines mentioned below : AQ 90, 95, 100, 105, 110, 115, 120, 130 MB18, 20 MD 11C,D MD17C,D 2001 2002 2003 RO: 418411 ? Exterior 20mm