Thermostat Kit – Fits Mercury Marine, Tohatsu/Nissan 4-Stroke 8-30 HP Outboards (Replaces 855676002, 3NV010300M) 130-135HP Installation typically requires a hose

Installation typically requires a hose cutter or sharp utility knife to ensure a clean cut on the fuel line and a screwdriver or nut driver to tighten the hose clamps

Slide the housing off and remove the old impeller

Ensure it goes in straight

ensuring it is correctly oriented (usually with the spring side facing the engine block)

every 1-2 years) for corrosion and leaks

Thermostat Kit – Fits Mercury Marine, Tohatsu/Nissan 4-Stroke 8-30 HP Outboards (Replaces 855676002, 3NV010300M) 130-135HP Installation typically requires a hoseProduct Details This Thermostat Kit Fits Mercury Marine 4 Stroke 8 30 HP Outboards is an essential component for maintaining a stable engine operating temperature. It is engineered for Mercury Marine 8 HP to 30 HP 4 Stroke outboard engines (209cc, 2 3 cylinder Carb EFI models) and is also compatible with select Tohatsu and Nissan 4 Stroke outboards that use the same thermostat specifications. This kit serves as a direct interchange for Mercury part