Review on Mercury Marine 143F Degree Thermostat Kit (75692Q2 & 75692T) - High Performance 2 Pcs for 135-150HP Outboard Motors by Keith Iverson

Name: Mercury Marine 143F Degree Thermostat Kit (75692Q2 & 75692T) - High Performance 2 Pcs for 135-150HP Outboard Motors
Item: Mercury Marine 143F Degree Thermostat Kit (75692Q2 & 75692T) - High Performance 2 Pcs for 135-150HP Outboard Motors
Rating: 1

September 13, 2022

DO NOT use in Mercury Optimax outboards

So I bought two sets of these gaskets. Installed on my two engines with new water pumps. Heating problems started. I looked at everything else and then finally took them out and put them in the pot and they don't open until 147-148 and when I say "open" they start to open VERY SLOWLY, never opening fully , even at 180 they are not fully open. So don't use them. And of course I can't return them now because it's been too long. Full of BS.

Pros

Gasket kit 310058

Cons

There are new competitors

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