Engineered Marine Products 75-75018 Outboard Thermostat Kit for Mercury, Tohatsu & Johnson/Evinrude 4-Stroke

The Engineered Marine Products (EMP) 75-75018 is an aftermarket outboard thermostat service kit engineered as a direct replacement for Mercury, Tohatsu, and Johnson/Evinrude 4-stroke small outboard engines. This kit maintains proper engine operating temperature by regulating coolant flow, protecting the engine from overheating and premature wear.

Key Features:

• Temperature rating: 140°F (60°C)
• Replaces OEM Mercury part numbers 8M0119207 and 855676002
• Replaces Tohatsu OEM part number 3NV-01030-0M
• Replaces Johnson/Evinrude OEM part number 5041185
• Cross-references Sierra 18-43175 and Mallory 9-43175
• Kit includes thermostat, rubber ring seal, and housing gasket
• Built to OEM specifications for a precise, reliable fit

Compatible Mercury 4-Stroke Models Include:

• 8 HP (209cc) — S/N R042475 & Up
• 9.9 HP (209cc) — S/N R042475 & Up
• 15 HP Carb (2-cylinder) — See application guide for serial range
• Also fits select Tohatsu and Nissan outboards (3NV, 3R3, 3SA series)

Engineered Marine Products is a trusted manufacturer of quality aftermarket marine engine components. The EMP 75-75018 thermostat kit is an ideal maintenance replacement for scheduled service or after an overheating event, helping restore reliable engine cooling performance.