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Item #:
26407008
Boat Motor Thermostat Assy compatible for Tohatsu Nissan Mercury Mercruiser Quicksilver Outboard M NS 3.5HP - 40HP 50o 50 degrees 350-01030 346-01030
Item #:
26407008
€ 23
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Imported from USA store
QTY:
Order now and get it around Thursday, August 13
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Brand new aftermarket part for Mercury Mariner Outboard
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What Stands Out
High Precision Thermostat
This thermostat regulates engine temperature with high accuracy, preventing overheating, enhancing efficiency, and extending the life of your Mercury or Mariner outboard motor.
Compatible Design
Designed specifically for Mercury, Mariner, Quicksilver, and Mercruiser two-stroke engines, ensuring perfect fit and compatibility that rivals generic alternatives.
Durability Assurance
Constructed with high-quality materials for long-lasting performance, this thermostat resists corrosion and wear, ensuring reliable operation in challenging marine environments.
Product Details
| Engine Type | 4 Stroke |
| Mounting Type | Engine Mount |
| Maximum Horsepower | 40 Horsepower |
| Item Weight | 0.03 Kilograms |
| Brand Name | ITACO |
| Manufacturer | ITACO |
| OEM Equivalent Part Number | 3H6-01030-0, 350-01030-1, 345-01030-1 |
| Manufacturer Part Number | 350-01030 346-01030 |
| Brand | ITACO |
Who Should Buy?
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Outboard Owners
Ideal for boaters with Mercury, Mariner, or Mercruiser engines needing a reliable thermostat for optimal engine performance.
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DIY Maintenance
Perfect for users who enjoy performing their own maintenance and require an efficient thermostat replacement part.
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Moderate Climate Use
Recommended for users operating in temperate climates where a 60C thermostat maintains preferred engine temperatures effectively.
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Non-2 Stroke Engines
Not suitable for 4-stroke outboard engines, as compatibility is limited to specific 2-stroke engine models.
Product Description
Boat Motor Thermostat Assy compatible for Tohatsu Nissan Mercury Mercruiser Quicksilver Outboard M NS 3.5HP - 40HP 50o 50 degrees 350-01030 346-01030 2/4-stroke
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a boat motor thermostat and why is it important?
Answer: A boat motor thermostat regulates the temperature of your engine by controlling the flow of coolant. Maintaining the proper temperature prevents overheating and ensures optimal engine performance. If the thermostat fails, it can disrupt engine temperature control, potentially leading to damage. Regularly replacing or checking your thermostat is crucial for longevity and efficiency. -
Question:
Is the Boat Motor Thermostat compatible with all Yamaha and Honda outboards?
Answer: The Boat Motor Thermostat is designed to be compatible with a range of models from Yamaha, Honda, Tohatsu, Nissan, Mercury, Mercruiser, and Suzuki, particularly those between 4HP to 250HP. However, always refer to your specific engine model's manual for compatibility confirmation. This ensures smooth operation and reduces the chance of taking risks with incorrect parts. -
Question:
How do I know if my boat motor thermostat is malfunctioning?
Answer: Signs of a malfunctioning thermostat include fluctuating engine temperatures, overheating, or poor engine performance. If your boat takes longer to reach optimal temperature or overheats during regular use, the thermostat may not be functioning properly. Monitoring these indicators can help you catch potential issues early, so you can maintain your engine's health. -
Question:
What are the installation steps for the Boat Motor Thermostat?
Answer: To install the Boat Motor Thermostat, first, disconnect your battery. Remove the old thermostat carefully, ensuring to clean the sealing surfaces thoroughly. Position the new thermostat in its place, aligning it with the gasket. Secure it back, reconnect the battery, and conduct a test run to monitor engine performance. Proper installation ensures reliable temperature regulation. -
Question:
What temperature does the Boat Motor Thermostat regulate?
Answer: This specific Boat Motor Thermostat operates at 60 degrees Celsius. This temperature is optimal for 24-stroke engines, allowing them to run efficiently while preventing overheating. Such thermoregulation is critical for prolonging engine life and enhancing fuel efficiency, making the thermostat an essential component of your boat's cooling system. -
Question:
How often should I replace my boat motor thermostat?
Answer: It's recommended to check and potentially replace your boat motor thermostat every two to three seasons, depending on usage and maintenance practices. Regular inspection can help you identify wear and tear early, ensuring the engine remains in good condition. A proactive approach to thermostat replacement can save you from costly repairs and downtime. -
Question:
Can I use a Boat Motor Thermostat from one brand for another brand's motor?
Answer: While some components may be interchangeable, it's not advisable to mix brands like Yamaha, Honda, and Mercury for critical parts like thermostats. Each brand designs components for their specific engines to ensure optimal performance and compatibility. It's best to use OEM parts to maintain functionality and avoid issues related to engine overheating. -
Question:
What materials are used in the Boat Motor Thermostat?
Answer: The Boat Motor Thermostat is typically made from durable materials such as high-quality plastic and metal. These materials can withstand the corrosive marine environment and high temperatures, ensuring longevity and reliable performance. Opting for well-made thermostats can enhance your engine’s operational efficiency and resilience against wear. -
Question:
What should I do if my engine overheats despite changing the thermostat?
Answer: If your engine continues to overheat after replacing the thermostat, it might indicate issues with other cooling system components such as the water pump, clogged passages, or insufficient coolant levels. A thorough inspection of the entire cooling system is advisable to pinpoint the problem. This preventive maintenance can spare you more extensive and expensive repairs later. -
Question:
Where can I buy the Boat Motor Thermostat for Yamaha, Tohatsu, Nissan, and others?
Answer: You can purchase the Boat Motor Thermostat for various outboard brands from Ubuy in Ireland. Ubuy offers a selection of high-quality automotive parts, ensuring you find the right thermostat compatible with your engine type. Shopping through Ubuy ensures a streamlined experience, as they provide comprehensive product details and reliable customer service.
ITACO Thermostats Editorial Review
The Boat Motor Cylinder Thermostat 6H3-12411-11 10 01 for Yamaha Outboard has had mixed reviews from customers. Some customers found that the thermostat did not work for their specific outboard engine, such as the Nissan 70hp outboard and the Yamaha 150 fourstroke. However, other customers had positive experiences with the thermostat fitting their engines perfectly, such as the 2004 4HP 4 Stroke Yamaha outboard, the 30HP 98 Tohatsu, and the Mercury 4 stroke 6 HP. Additionally, one customer mentioned excellent customer service when the part did not fit. Overall, it seems that the compatibility of the thermostat with different engine models may vary.
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Pros
- Fits perfectly on some engine models
- Lower cost compared to OEM part
Cons
- Does not work for all engine models
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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€ 23
Order now and get it around Thursday, August 13
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Condition: Brand new
- Part number: 11752M 814554001
- For Mercury Mariner Outboard and Mercruiser engines (2 stroke)
- Check OEM part number before purchase
- Suitable for boat motors
- High quality and durable
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