Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0 Replaces 59078 59078Q3 18-3650
New thermostat kit for GM 2.5L or 3.0L inline 4-cylinder engines
Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0 Replaces 59078 59078Q3 18-3650
Item #: 39820730

Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0 Replaces 59078 59078Q3 18-3650

Item #: 39820730

ETB 5415

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New thermostat kit for GM 2.5L or 3.0L inline 4-cylinder engines
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What Stands Out

High Compatibility
Designed specifically for Mercury Marine Mercruiser 2.5 and 3.0 engines, ensuring seamless integration and reliable performance, making it the perfect choice for boat enthusiasts and mechanics.
Durable Replacement
This thermostat kit replaces obsolete parts like 59078 and 59078Q3, offering improved longevity and performance, thus solving overheating issues efficiently for optimal engine health.
Easy Installation
With user-friendly design and clear instructions, this thermostat kit allows for quick and hassle-free installation, saving time and reducing labor costs for boat repairs and maintenance.

Product Details

Buy Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0 on Ubuy Ethiopia. Replaces 59078, 59078Q3, 18-3650. High-quality thermostat kit for optimized performance.
  • Thermostat kit designed for Mercury Marine Mercruiser 2.5 and 3.0 engines.
  • Replaces part numbers 59078, 59078Q3, and 18-3650.
  • Suitable for GM 2.5L or 3.0L inline 4-cylinder engines, as well as many inline 6-cylinder engines.
  • Includes a 140 degree thermostat and gasket.
  • Meets or exceeds OEM specifications for quality and performance.
  • Essential kit for maintaining proper engine temperature and preventing overheating.
Item Weight0.5 lbs (230 grams)

Who Should Buy?

Suitable For
  • Boat Owners

    Perfect for those who own Mercury Marine Mercruiser 2.5 or 3.0 engines and need reliable temperature regulation.

  • DIY Mechanics

    Ideal for do-it-yourself enthusiasts looking for an affordable and easy-to-install thermostat solution.

  • Seasonal Users

    Great for boaters who use their vessels seasonally and want to maintain engine performance with a fresh thermostat.

Not Suitable For
  • High-Performance Users

    Not suitable for those needing high-performance components, as it may not withstand extreme operating conditions.

  • Non-Mercruiser Engines

    Incompatible with engines other than Mercury Marine Mercruiser 2.5 and 3.0, limiting its usability.

  • Professional Technicians

    May not meet the standards expected by professional marine technicians seeking higher-grade parts for repairs.

Product Description

Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0 Replaces 59078 59078Q3 18-3650

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is included in the Thermostat Kit for Mercury Marine Mercruiser 2.5 and 3.0?

    Answer: The Thermostat Kit for Mercury Marine Mercruiser includes a high-quality thermostat, a gasket, and necessary mounting hardware. This comprehensive kit ensures you have everything required for a complete replacement. It is designed to fit specific engines, providing optimal performance and efficiency. Installing all components helps maintain the correct engine temperature, which is crucial for preventing overheating and ensuring smooth operation on the water.
  • Question: How do I know if I need a new thermostat for my Mercruiser?

    Answer: Signs that you may need a new thermostat include inconsistent engine temperatures, overheating, or failure to open properly. If you notice your engine runs hotter than normal while on the water, it’s likely that the thermostat is malfunctioning. A replacement like the Thermostat Kit for Mercury Marine Mercruiser ensures that the engine cools efficiently. Regular checks during maintenance can help catch these issues early and prevent engine damage.
  • Question: How does the Thermostat Kit affect engine performance?

    Answer: Upgrading to the Thermostat Kit for Mercury Marine Mercruiser directly improves engine performance by maintaining optimal operating temperatures. A correctly functioning thermostat allows the engine to reach the ideal temperature more quickly, promoting fuel efficiency and reducing emissions. It also helps in keeping the engine components at the right temperature, enhancing overall durability and performance during your boating experience.
  • Question: Can I install the thermostat kit myself?

    Answer: Yes, you can install the Thermostat Kit for Mercury Marine Mercruiser yourself if you have some mechanical aptitude. Start by draining the cooling system and removing the old thermostat. Follow your engine's manual for specific instructions on placement. Ensure you use the new gasket provided in the kit to prevent leaks. This DIY installation can save you labor costs while providing personal satisfaction from maintaining your boat.
  • Question: Is the Thermostat Kit compatible with other models?

    Answer: The Thermostat Kit is specifically designed for Mercury Marine Mercruiser 2.5 and 3.0 models. While it may replace other thermostat parts like 59078 or 59078Q3, it is essential to verify compatibility with your specific engine model before purchasing. Some models have different requirements, and using the incorrect thermostat can lead to performance issues. Always consult your owner’s manual or a trusted mechanic for verification.
  • Question: What tools do I need to install the thermostat kit?

    Answer: To install the Thermostat Kit for Mercury Marine Mercruiser, you will need basic hand tools such as a socket set, screwdrivers, and possibly a torque wrench. Having a gasket scraper might help remove any remnants of the old gasket from the engine block. It’s advisable to have a clean workspace and to consult your engine’s manual for any specific tools that may be recommended for your model, ensuring a smooth installation process.
  • Question: What is the function of the thermostat in a marine engine?

    Answer: The thermostat plays a crucial role in regulating the engine's temperature by controlling the flow of coolant. It remains closed when the engine is cold, allowing it to warm up quickly, then opens to enable coolant circulation once the optimal temperature is reached. This function safeguards your Mercruiser's performance and longevity by preventing overheating, which can cause severe engine damage if ignored.
  • Question: How does the thermostat kit reduce the risk of engine overheating?

    Answer: The Thermostat Kit ensures your engine operates at the correct temperature by providing a reliable thermostat that opens and closes as needed. Properly regulating this temperature prevents overheating and keeps the engine in its efficient operating range. This is especially critical when running at high speeds or in warm weather conditions, as maintaining stability in engine cooling reduces the likelihood of heat-related failures.
  • Question: What are the signs that a thermostat is failing?

    Answer: Signs of a failing thermostat include the engine overheating, fluctuating temperature readings on the gauge, and poor engine performance. If you experience irregular readings or if your engine seems to labor under load, these may be indicators that the thermostat is not functioning correctly, and replacement may be necessary. Addressing these issues promptly with a new Thermostat Kit can prevent further damage to the engine.
  • Question: Where can I buy the Thermostat Kit for Mercury Marine Mercruiser in Ethiopia?

    Answer: You can purchase the Thermostat Kit for Mercury Marine Mercruiser at Ubuy, which offers a wide selection of marine parts and accessories tailored for your needs. Ubuy provides a seamless shopping experience, ensuring you find the right fit and quality for your engine requirements. Explore their inventory online to easily order the necessary components for your boating mechanics.

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