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- New OEM Thermostat Assembly, 500544
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Item #:
7663178
New OEM Thermostat Assembly, 500544
87% of respondents would recommend this to a friend
Item #:
7663178
ZMW 826
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Friday, September 11
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Brand new, genuine Johnson Evinrude OMC 143 Degree Thermostat Assembly. This is a factory original equipment part, not aftermarket.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Precision
Provides accurate temperature regulation, ensuring optimal engine performance and preventing overheating, which enhances vehicle longevity and reliability.
OEM Quality
Manufactured to original equipment specifications, guaranteeing a perfect fit and finish, which helps maintain warranty protections and vehicle performance standards.
Easy Installation
Designed for straightforward installation with minimal tools required, allowing users to save time and effort while ensuring reliable operation after installation.
Product Details
| Brand | Johnson Evinrude OMC |
| Controller Type | Touch Control |
| Color | Silver |
| Temperature Control Type | thermostatic |
| Connectivity Technology | Wired |
Who Should Buy?
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Vehicle Enthusiasts
Ideal for car aficionados seeking reliable OEM parts to maintain vehicle performance and efficiency.
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Routine Maintenance
Perfect for users needing to replace defective thermostats during regular vehicle maintenance to ensure optimal engine temperature.
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DIY Mechanics
Great for DIYers who prefer high-quality OEM parts for straightforward installation and long-term reliability.
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Budget Shoppers
Not ideal for users looking for the cheapest option as OEM parts tend to be pricier than aftermarket alternatives.
Product Description
New OEM Thermostat Assembly, 500544
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the purpose of the New OEM Thermostat Assembly, 500544?
Answer: The New OEM Thermostat Assembly, 500544, regulates the engine's temperature by controlling the flow of coolant. It ensures the engine operates within the optimal temperature range, preventing overheating and ensuring efficient performance. A properly functioning thermostat is vital for maintaining fuel efficiency and reducing emissions. For example, if the engine runs too cool, it may consume more fuel, while excessive heat can lead to engine damage. -
Question:
Is the New OEM Thermostat Assembly, 500544 compatible with all vehicles?
Answer: The compatibility of the New OEM Thermostat Assembly, 500544, typically depends on the specific make and model of your vehicle. It’s essential to check your vehicle’s manual or consult with a professional to confirm compatibility. Using the correct thermostat is crucial for optimal engine performance and longevity. Many mechanics recommend OEM parts due to their precise fit and reliability, making them a wise choice to maintain your vehicle’s integrity. -
Question:
How do I know if I need to replace my thermostat assembly?
Answer: Signs that your thermostat assembly may need replacement include engine overheating, fluctuating temperature readings, or coolant leaks. If your dashboard indicator shows abnormal temperature levels or you notice steam from under the hood, it may indicate a failed thermostat. Replacing it promptly can avoid significant engine damage and improve overall efficiency. Regular vehicle maintenance checks can help identify these issues early. -
Question:
What tools are needed to install the New OEM Thermostat Assembly, 500544?
Answer: To install the New OEM Thermostat Assembly, 500544, you typically need a ratchet set, a set of sockets, a screwdriver, and a torque wrench. Having sealant or a new gasket may also be required for a proper seal. Familiarizing yourself with your vehicle's service manual can provide specific guidance on the tools and steps necessary for your model. This installation can enhance your vehicle’s performance and ensure longevity. -
Question:
Can I install the New OEM Thermostat Assembly, 500544 myself?
Answer: Yes, you can install the New OEM Thermostat Assembly, 500544 yourself if you have basic mechanical skills and the right tools. It involves draining the coolant, removing the old thermostat, and replacing it with the new one, followed by refilling and bleeding the cooling system. Many find DIY installation rewarding and cost-saving, but if you’re uncertain, it’s advisable to seek professional help to ensure correct installation and functionality. -
Question:
What are the benefits of using an OEM thermostat assembly?
Answer: Using an OEM thermostat assembly like the New OEM Thermostat Assembly, 500544, ensures a perfect fit and reliable performance because it is manufactured to meet the exact specifications of your vehicle. OEM parts are designed to work seamlessly with your engine, reducing the risk of issues that can arise from aftermarket alternatives. This reliability helps maintain engine efficiency and minimizes the likelihood of further repairs, making it a smart investment in the health of your vehicle. -
Question:
What symptoms indicate a faulty thermostat?
Answer: Common symptoms of a faulty thermostat include an overheating engine, erratic temperature gauge readings, or coolant leaking from the thermostat housing. If you experience these issues, it’s crucial to check the thermostat functionality as it directly impacts your engine performance. Failing to address these symptoms promptly can lead to severe engine problems, necessitating costly repairs or replacements of engine components. -
Question:
How does the thermostat affect engine performance?
Answer: The thermostat plays a critical role in maintaining the engine's operational temperature, directly influencing performance and efficiency. If the thermostat is stuck open, the engine fails to reach optimal temperature, leading to reduced fuel efficiency. Conversely, if it’s stuck closed, it can cause overheating. Keeping the thermostat in good working condition is essential to avoid these performance issues, ensuring your vehicle runs smoothly and efficiently under various driving conditions. -
Question:
Can a failing thermostat impact my vehicle's fuel efficiency?
Answer: Yes, a failing thermostat can significantly impact fuel efficiency. When the thermostat is stuck open, the engine runs cooler than desired, leading to a rich fuel mixture that increases consumption. Conversely, if stuck closed, the engine overheats, which can trigger safety mechanisms that limit performance. Maintaining the thermostat in optimal working condition is vital for ensuring your vehicle maximizes fuel economy while minimizing emissions. -
Question:
Where can I buy New OEM Thermostat Assembly, 500544?
Answer: You can purchase the New OEM Thermostat Assembly, 500544 at Ubuy. They offer a wide selection of automotive parts, including genuine OEM components, ensuring reliability and quality. By choosing Ubuy, you benefit from a straightforward purchasing process and access to detailed product descriptions that help you make informed decisions. It’s a great option for those seeking to maintain their vehicle with authentic parts that align with manufacturer specifications.
JohnsonEvinrudeOMC Thermostats Editorial Review
The OMC 5005440 Thermostat Ay has received positive feedback from customers. Users have noted that the product works as expected and is a perfect fit as an original part. The delivery service has been praised for being excellent, with on-time delivery and fast shipping. However, some customers have highlighted the absence of rubber gaskets, advising others to remember to purchase them separately. Overall, the OMC 5005440 Thermostat Ay seems to be a reliable and fitting replacement part, with efficient shipping and service, though the lack of rubber seals is an aspect that buyers need to bear in mind.
Customer Reviews & Ratings
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Pros
- Works as expected
- Perfect fit as an original part
- Great price and fast shipping
Cons
- Does not come with rubber gaskets
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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ZMW 826
Order now and get it around Friday, September 11
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Features & Benefits
- Factory original equipment part
- Genuine Johnson Evinrude OMC product
- Brand new
- Supersedes multiple part numbers
- 143 Degree thermostat assembly
- Verify fitment before purchase
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