Volvo Penta Thermostat.Your thermostat is an important part of the cooling system and should be checked regularly for correct operation. Coolant should be changed, preferably with ready mixed, every 2 years and the heat exchanger removed for cleaning every 5 years.Volvo Penta Part No: 3580365For Volvo Penta Diesel Engines: D2-55A, D2-55B, MD2030, MD2030A, MD2030B, MD2030C, MD2030D, MD2040, MD2040A, MD2040C, MD2040D
These are the 2 O-Rings that sit behind the prop and protect the gearbox from water ingression. Two are required and supplied in this kit
Saildrive prop shaft sealing rings that sit behind the prop and protects the gearbox from water ingression
This is the Saildrive drain plug O-Ring and an oil filler O-Ring on a DP-G
MS25S Saildrive drain plug O-Ring option. This is an O-Ring whereas 3855081 is a fabric gasket.