Sierra’s 18-3677D Thermostat Kit is designed for use in Johnson/Evinrude outboard and OMC stern drive applications. It is interchangeable with Mallory 9-43028, Volvo Penta 3856961, 835417, 3852071. The kit contains 18-7170 O-Ring, 18-0398 Thermostat Gasket, and 18-3554 Thermostat. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Johnson/Evinrude outboard and OMC stern drive applications
Interchangeable with Mallory 9-43028, Volvo Penta 3856961, 835417, 3852071
Kit contains 18-7170 O-Ring, 18-0398 Thermostat Gasket, and 18-3554 Thermostat
Each Sierra product meets or exceeds the original equipment part it replaces
