This is a drain plug O-ring for the 290-DP, DP-E other DP drives listed below. This is one option for an MS25S Saildrive whereas the other option, part number 3855081 is a fabric gasket.
Companion flange O-Ring for KAD series and other diesel engines
Volvo Penta green coolant gives vastly superior corrosion protection with special additives for aluminium protection. Suitable for both petrol and diesel engines. It also has good anti-freeze properties
Impeller pump screw kit for D2 yacht series engines and KAD300, KAD32, KAD42, KAD43, KAD44, KAD300 diesel engines