One of the thermostats in the kit did not work. I can't get through because the deadline has passed (by 5 days) and we didn't know it wasn't working because it was only installed yesterday.
I received my seal kit and it came with additional white plastic valve gears not shown in the photos. I am from South Africa, received the item on time and in perfect condition and more than advertised by the supplier.
As a preventive measure I replace the thermostats every 2 years. It's not fun, but it should be done in a saltwater environment. I have bought this set several times and it works well. You don't have to spend money on a BRP/OMC branded product.