Thermostat gasket for Volvo Penta and Mercruiser replaces 8M2021920 3852111

Thermostat gasket.

Reference to:

Mercruiser: 27-530451, 27-53045Q01, 27-8M2021920, 33918, 8M2021920; Volvo: 3852111, 835417, 856347; OMC/Johnson/Evinrude: 0312797, 0312979, 0508675, 0765604, 3852111