Description
Includes: – 120 Degree Thermostat
Fits Models: – Mercury Mariner Outboard
Model Years: – Check fitment before purchase
Submodels: – Applies to listed models
Engine Options: – Common engine sizes include 6hp, 8hp, 9.9hp, 15hp, 20hp, 25hp, 30hp, 40hp, 50hp, 60hp, 75hp, 90hp, 100hp, 115hp, 125hp
Description: This 120-degree thermostat is designed for Mercury Mariner outboard engines ranging from 6hp to 125hp. It ensures optimal engine temperature for efficient performance and longevity. The thermostat is a crucial component for regulating the engine’s cooling system, preventing overheating and maintaining proper operating conditions.
Features: – Direct replacement for Mercury Mariner outboard engines – Maintains optimal engine temperature – Prevents overheating – Compatible with a wide range of horsepower ratings – Simple to install
Part Number: 18-3549, 14586









