Mercury Outboard Thermostat Kit 120 Degree For Mariner 6HP 8HP 9.9HP 15HP 20HP 25HP 2 Cycle Engines Sierra 18 3549 Compatible Keeps Your Motor At Optimal Temperature

120 Degree Thermostat Kit for Mariner Outboard Engines
✔️ 120° thermostat kit for Mercury Mariner 6-25HP 2-cycle outboards

This thermostat kit is designed for Mercury Mariner 2-cycle outboard engines and helps regulate the engine temperature. It replaces Mercury Marine part numbers 14586A3, 75692A10, 75692A11, 75692A9; Sierra 18-3549, GLM 13121, Mallory 9-43052. The package contains 1 thermostat (PN 14586) and 3 gaskets (27-19205002, 27-14318, 27-62386). It is very important to check the part number before purchase to ensure fit.

✅ Replaces Mercury Marine 14586A3, 75692A10, 75692A11, 75692A9; Sierra 18-3549, GLM 13121, Mallory 9-43052
✅ Includes thermostat 14586 and gasket set (27-19205002, 27-14318, 27-62386) for installation
✅ 6-25HP 2-cycle outboard compatibility keeps engine at optimal temp

💡 What is a 120 degree thermostat kit for Mercury outboard engines and when should you use it?

This handy cooling component helps maintain the engine’s ideal operating temperature during operation, reducing overheating risk.

- Maintains proper temp in 6-25HP two-stroke outboards
- Replaces key Mercury/Mariner part numbers for cross-compatibility
- Includes gasket set for quick, clean installation
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