Mercury THERMOSTAT KIT 807252Q5

Mercury – Quicksilver 160°F Thermostat | For V6 & V8 MerCruiser Engines (1987–2016) | 807252Q5 Overview Keep your engine running at the right temperature with the Mercury Marine 807252Q5 Quicksilver 160°F Thermostat . Designed for V6 and V8 MerCruiser engines built by General Motors from 1987 to 2016 (excluding high-performance models), this thermostat helps your engine reach its optimal operating temperature faster and maintain it efficiently. It’s built from corrosion-resistant materials for marine conditions and engineered to the same standards Mercury uses on new engines — ensuring smooth operation, better fuel economy, and longer engine life. Key Features Purpose: Regulates coolant flow to maintain steady 160°F operating temperature. Temperature Rating: Opens at 160°F to balance efficiency and protection. Compatibility: Fits V6 and V8 MerCruiser engines (1987–2016) from General Motors . Construction: Built from marine-grade materials to withstand corrosion, heat, and vibration. Ease of Use: Installs easily using basic hand tools — direct OEM replacement. Engine & Boat Compatibility V6 and V8 MerCruiser sterndrive and inboard engines made by General Motors (1987–2016) Not designed for high-performance engines Performance & Real-World Benefits The 807252Q5 thermostat is a small but critical part of your cooling system. It helps your engine warm up quickly, then regulates coolant flow to prevent overheating and maintain efficiency. If your thermostat fails or sticks open, your engine can run too cold — reducing performance and increasing fuel use. If it sticks closed, overheating can occur. Replacing it with this genuine Mercury OEM part ensures reliable temperature control, smoother idle, and better fuel economy. The 160°F design is ideal for standard MerCruiser cooling systems, keeping your engine at peak performance under any load or water condition. Why Choose Mercury OEM The Quicksilver 807252Q5 is a genuine Mercury Marine replacement thermostat , built for precision and reliability. Aftermarket versions can vary in temperature calibration or use materials that degrade quickly in saltwater and heat. Mercury’s OEM parts are factory-tested for accuracy and endurance under marine conditions. You’re getting the same quality thermostat found on new MerCruiser engines — engineered for exact fit and consistent performance season after season. FAQ Q1: What engines does this thermostat fit? It’s for V6 and V8 MerCruiser engines made by General Motors (1987–2016) with standard cooling systems. Q2: What temperature does it regulate? It opens at 160°F , maintaining the ideal temperature range for most MerCruiser engines. Q3: When should it be replaced? Replace it if your engine shows signs of overheating, poor warm-up, or inconsistent temperature readings . Q4: Is it easy to install? Yes — it’s a direct-fit replacement that installs easily using standard shop tools. Q5: Why OEM instead of aftermarket? Mercury OEM thermostats are precision-calibrated, corrosion-resistant, and built for exact fit and longevity in marine environments.

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