- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engine Cooling & Climate Control /
- Thermostats /
- 393659 Thermostat & Seals Kit for Johnson Evi...
0 ratings
Item #:
106812563
393659 Thermostat & Seals Kit for Johnson Evinrude 5-235 HP Outboard Motor Engine Replacement 5005440 8330720 777260 Sierra 18-3543 Stainless Steel
Item #:
106812563
BZD 53
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, August 05
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Upgrade your outboard motor's performance with our high-quality Stainless Steel Thermostat & Seals Kit!
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
High Compatibility
Designed for a wide range of Johnson Evinrude outboard motors, ensuring seamless integration and optimal performance across 5-235 HP engines. Replaces multiple part numbers for added convenience.
Durable Materials
Constructed from high-quality stainless steel and robust seals, providing enhanced longevity and resistance to corrosion, ensuring reliable operation in harsh marine environments.
Easy Installation
Designed for straightforward installation, allowing users to quickly replace old thermostats and seals without professional assistance, saving time and maintenance costs.
Product Details
| Engine Type | 2/4 Stroke |
| Operation Mode | Manual |
| Mounting Type | Engine Mount |
| Fuel Type | Gasoline |
| Maximum Horsepower | 235 Horsepower |
| Color | Stainless Steel |
| Material Type | Marine Grade Stainless Steel Thermostat |
| Brand Name | QUICKMARINE |
| Recommended Uses For Product | Boat, Outboard |
| Manufacturer | QuickMarine Genuine Parts |
| UPC | 683370649026 |
| OEM Equivalent Part Number | Replacement for Johnson Evinrude 377148 0377148 377612 0377612 378065 0378065 393659 0393659 434841 0434841 437414 0437414 508626 0508626 777260 0777260 5005440 8330720 59434841 |
| Manufacturer Part Number | 5005440 393659 8330720 777260 |
| Model Number | 5005440 393659 8330720 777260 |
| Item Type Name | Thermostat and Seals Kit |
| Included Components | Seals, Stainless Steel Thermostat |
| Brand | QUICKMARINE |
| Material | Marine Grade Stainless Steel Thermostat |
| Item Weight | 1.1 lbs (500 grams) |
Who Should Buy?
-
Boat Owners
Ideal for boat owners needing reliable temperature regulation for their Johnson Evinrude outboard motors between 5 to 235 HP.
-
Mechanics & Technicians
Useful for marine mechanics looking to replace thermostat components efficiently in Johnson Evinrude engines using durable seals.
-
DIY Enthusiasts
Perfect for DIY hobbyists who prefer performing engine maintenance themselves and require quality replacement parts for reliability.
-
Other Engine Brands
Not suitable for outboard motors from brands other than Johnson Evinrude, limiting compatibility with non-JE engines.
Product Description
393659 Thermostat & Seals Kit for Johnson Evinrude 5-235 HP Outboard Motor Engine Replacement 5005440 8330720 777260 Sierra 18-3543 Stainless Steel
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is included in the 393659 Stainless Steel Thermostat & Seals Kit?
Answer: The 393659 Stainless Steel Thermostat & Seals Kit includes a high-quality stainless steel thermostat that ensures efficient engine temperature regulation, along with all necessary seals to ensure a tight and secure fit. The use of stainless steel is crucial as it provides enhanced durability and resistance to corrosion, which is important in marine environments. This kit is ideal for anyone looking to maintain optimal performance in their Johnson or Evinrude outboard motors, ensuring they operate smoothly and efficiently. -
Question:
How do I know if the 393659 Thermostat is compatible with my motor?
Answer: The 393659 Thermostat is specifically designed for Johnson and Evinrude outboard motors ranging from 5 to 235 HP. It's compatible with models that have part numbers 8330720, 777260, Sierra 18-3543, and 18-3553. To ensure compatibility, you can check the model number of your motor against the list of compatible models provided by the manufacturer or consult your user manual. This helps guarantee that you get the correct parts for a seamless installation and optimal performance. -
Question:
What are the benefits of using a stainless steel thermostat over other materials?
Answer: Stainless steel thermostats offer superior resistance to corrosion and high temperatures compared to brass or plastic equivalents. This is particularly important in marine environments where exposure to saltwater can lead to premature failure of other materials. By using a stainless steel thermostat, you can expect longer service life and less frequent replacements. This not only enhances the reliability of your outboard motor but also contributes to better overall performance, making your time on the water more enjoyable. -
Question:
How frequently should I replace the thermostat in my outboard motor?
Answer: Thermostats in outboard motors should typically be inspected annually and replaced every few seasons, depending on usage and conditions. Harsh marine environments, extended use, and fluctuating temperatures can affect their performance. Regular replacement ensures that your engine maintains optimal operating temperatures, which is crucial for preventing overheating and associated damages. Keep an eye out for signs of malfunction, such as fluctuating temperature readings or engine performance issues, which may indicate it’s time for a replacement. -
Question:
Can I install the 393659 Thermostat & Seals Kit myself?
Answer: Yes, the installation of the 393659 Thermostat & Seals Kit can typically be done by individuals with basic mechanical skills and tools. The kit often comes with installation instructions, guiding you through the process of replacing the thermostat and seals. It involves removing the old assembly, cleaning the mounting surface, and carefully fitting the new thermostat and seals in place. If you’re unsure, consulting with a professional mechanic can provide peace of mind and ensure proper installation, enhancing your motor's performance. -
Question:
What symptoms indicate that I need to replace my thermostat?
Answer: Common symptoms indicating a need to replace your thermostat include overheating, frequent engine stalls, or a motor that runs too cold. If you notice the temperature gauge fluctuating significantly or the engine exhibiting reduced power, it might be time to check the thermostat. Ignoring these signs can lead to more severe engine damage, making immediate replacement essential for maintaining your outboard motor's health and performance. -
Question:
Is the 393659 thermostat kit suitable for freshwater and saltwater use?
Answer: Yes, the 393659 Stainless Steel Thermostat & Seals Kit is suitable for both freshwater and saltwater environments. Stainless steel is resistant to corrosion, making it an excellent choice for marine applications where exposure to saltwater is a concern. Using this kit allows you to focus more on performance and reliability, ensuring your outboard engine remains efficient, regardless of the type of water you operate in. -
Question:
What should I do if my thermostat fails after installation?
Answer: If you experience a failure of your new thermostat after installation, the first step is to check your installation for any errors, such as improper sealing or misalignment. Ensure that all seals are fitting correctly and that there's no debris affecting performance. If the installation appears correct, you may want to contact the supplier or manufacturer for guidance or replacement options. Troubleshooting can help you identify if it was a faulty part or a user error, ensuring your engine gets back to optimum performance. -
Question:
What tools are necessary to install the thermostat kit?
Answer: To install the 393659 Thermostat & Seals Kit, you typically need basic hand tools such as a socket set, screwdrivers, a gasket scraper, and possibly pliers. Having a torque wrench can help you ensure that screws and bolts are tightened to the manufacturer's specifications, avoiding damage to the components. Depending on your particular outboard motor model, a service manual may provide additional specific tools or techniques required for installation. -
Question:
Where can I buy the 393659 Stainless Steel Thermostat & Seals Kit?
Answer: You can purchase the 393659 Stainless Steel Thermostat & Seals Kit from Ubuy in Belize. Ubuy offers a wide range of automotive parts, including this thermostat kit, ensuring you receive a high-quality product suitable for your Johnson or Evinrude outboard motor. With their user-friendly platform, you can easily find the right parts to enhance your boating experience.
QUICKMARINE Thermostats 5005440 393659 8330720 777260 Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
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
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
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
SJ
SAO JOHN
Verified buyer
“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
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
BZD 53
Order now and get it around Wednesday, August 05
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.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Compatible with a wide range of Evinrude and Johnson outboards from 5 HP to 235 HP.
- Replaces multiple OEM numbers including 8330720, 777260, and more.
- Constructed from durable Stainless Steel 316 for long-lasting performance.
- Includes 2 seal gaskets for a complete installation.
- Perfect for ensuring optimal engine cooling and efficiency.
- Easy to install, enhancing your motor's reliability and functionality.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.