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  3. MARINEPARTSDISTRIBUTORS 775-20KA2

MARINEPARTSDISTRIBUTORS 775-20KA2 Thermostat Outboard Kit 120 40 50 60 3-CYL 75692A13

fits model: Mariner. make: Mercury.

775-20ka2 Marinepartsdistributors Thermostat Kit 120 Degree Mercury Mariner 40 50 55 60 Hp 3-cyl Outboard 75692a13

( Brand: Marinepartsdistributors ), ( Manufacturer Part Number: 775-20KA2 ), ( Part Type: Hp Thermostat ), ( Warranty: 1 Year ), ( California Prop 65 Warning: This Product May Expose You To Chemicals Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov ), ( Country Of Origin: Taiwan ), ( Oem Interchange Part Numbers1: 14586a4 ), ( Oem Interchange Part Numbers2: 14586a6 ), ( Oem Interchange Part Numbers3: 75692a13 ), ( Oem Interchange Part Numbers4: G13122 ), ( Oem Interchange Part Numbers5: G13123 ), ( Source: Aftermarket )

Review MARINEPARTSDISTRIBUTORS Thermostat Kit 120 Degree Mercury 40 50 60 Hp 3-cyl Outboard fits MARINER

The **775-20KA2 Thermostat Kit** is a precision-engineered marine cooling solution designed exclusively for **Mercury Marine 3-cylinder outboard motors** in the **40, 50, and 60 horsepower** series, specifically built for models equipped with the **75692A13** engine code. This high-performance thermostat kit plays a critical role in maintaining optimal engine temperature, ensuring efficient combustion, extended component lifespan, and reliable operation under demanding conditions. Engineered with **120-degree mercury** (a measure of temperature sensitivity), this kit features a **highly responsive thermostat** that regulates coolant flow with exceptional accuracy, preventing overheating while avoiding premature cooling that could lead to carbon buildup or inefficient performance. The kit includes a **sealed, durable thermostat housing**, a **spring-loaded valve mechanism**, and a **precision-calibrated bimetallic element** that expands and contracts with temperature fluctuations, allowing for seamless coolant regulation. Ideal for both **new installations and replacements**, this thermostat kit is compatible with the **E-TEC or E-TEC2** fuel injection systems found in these engines, ensuring seamless integration with the motor s cooling circuit. Whether used in **fishing boats, personal watercraft, or recreational vessels**, this kit helps maintain peak engine efficiency, reduces wear on critical components like the **water pump, cylinder heads, and gaskets**, and minimizes the risk of catastrophic overheating especially during prolonged use, high-load conditions, or extended periods in warm water. Built to meet Mercury Marine s stringent quality standards, the **775-20KA2** is a direct-fit, OEM-replacement part that delivers the same level of performance as the original equipment, making it a trusted choice for marine enthusiasts and professionals seeking reliable cooling solutions.

### **Pros and Cons of buying a 775-20KA2 Thermostat Kit for a 120 Mercury Marine 3-Cylinder Outboard (40-50-60 HP, Model 75692A13)**

#### **Pros**

1. **Compatibility** This thermostat kit is specifically designed for your Mercury Marine 3-cylinder outboard models (40, 50, and 60 HP), ensuring a proper fit and optimal performance without modifications.

2. **Improved Engine Protection** The thermostat regulates engine temperature, preventing overheating, which can cause severe damage to internal components like pistons, bearings, and seals.

3. **Enhanced Fuel Efficiency** A properly functioning thermostat helps maintain the ideal operating temperature, which can improve combustion efficiency and reduce fuel consumption over time.

4. **Prevents Coolant System Issues** A failing thermostat can lead to coolant leaks, overheating, or even complete failure of the cooling system, making this replacement a cost-effective preventive measure.

5. **Easy Installation** Mercury Marine thermostat kits are typically designed for straightforward replacement, often requiring only basic tools and minimal mechanical skill.

6. **Extended Engine Lifespan** By maintaining proper operating temperatures, the thermostat helps reduce wear and tear on critical engine parts, potentially extending the life of your outboard.

7. **Warranty Coverage** If purchased from an authorized dealer or reputable supplier, the thermostat may come with a warranty, providing peace of mind against premature failure.

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#### **Cons**

1. **Cost** Replacing a thermostat is a relatively inexpensive part, but if labor costs are involved (e.g., if you re not comfortable doing it yourself), the total expense may be higher than expected.

2. **Potential for Counterfeit Parts** If purchasing from an untrusted source, there s a risk of receiving a low-quality or fake thermostat kit, which could fail prematurely or not function correctly.

3. **Additional Maintenance Required** Replacing the thermostat may require draining and refilling the coolant system, which adds time and effort to the repair process.

4. **Diagnostic Uncertainty** If the thermostat is not the root cause of overheating (e.g., issues with the water pump, impeller, or cooling passages), replacing it alone may not resolve the problem, leading to unnecessary expenses.

5. **Limited Lifespan** While high-quality thermostats are durable, they are not permanent and will eventually wear out, requiring future replacements.

6. **Skill Dependency** If you re not mechanically inclined, improper installation (e.g., not seating the thermostat properly or mixing coolant incorrectly) could lead to leaks or further damage.

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### **Conclusion**

The **775-20KA2 thermostat kit** is a **necessary and beneficial upgrade** for your Mercury Marine 3-cylinder outboard if you re experiencing overheating issues or simply want to prevent future problems. The pros far outweigh the cons, particularly in terms of **engine protection, efficiency, and longevity**. However, it s important to **verify the part s authenticity**, ensure proper installation, and confirm that the thermostat is indeed the source of your cooling system concerns.

If you re comfortable with basic mechanical work, replacing the thermostat yourself is a **cost-effective solution**. If not, consulting a marine mechanic ensures the job is done correctly.

### **Recommendation**

- **Buy from an authorized Mercury dealer or trusted supplier** to ensure you get a genuine part.

- **Check for coolant leaks, water pump condition, and impeller wear** before and after replacement, as these could contribute to overheating.

- **Follow the manufacturer s installation instructions carefully** to avoid mistakes.

- **Consider a full cooling system flush** if the coolant is old or contaminated, as this can improve overall performance.

- **Monitor engine temperature** after installation to confirm the thermostat is functioning properly.

**Final Verdict:** **Worth the investment** if your outboard is showing signs of overheating or if you re performing routine maintenance. A well-maintained thermostat is a small part that can prevent costly engine damage.

Details:

All parts sold are new. Replaces Mercury 14586A6 and 75692A13.Product Notice. Kit contains thermostat, poppet valve, cup, diaphragm, spring, gaskets, elbow fitting, and hardware. When the thermostat or poppet valve fails, symptoms include temperature gauge fluctuations, poor idle quality, and reduced fuel economy.

The poppet valve system in Mercury outboards works conjunction with the thermostat to regulate water flow and maintain consistent power head temperature. OEM PART NUMBERS: Mercury/Quicksilver: 14586A6 supersedes 14586A4, 75692A13, SPECIFICATIONS: Thermostat Poppet Valve Kit, Operating Temperature: 120 F 49 C, Material: Brass, Kit Includes: Thermostat, Valve, Cup, Diaphragm, Spring, Gaskets 2, Elbow Fitting, Screw, Cable Tie, condition: New, APPLICATION: Mercury 40 HP 2-Cylinder 2.992 Bore 1994-2007, 45 3-Cylinder Jet 1991-1997, 50 2.955 Loopier 55 Sea Pro 13 Spline 1995-1997, 60 Mariner Outboard model's by part number cross-reference, Degree 40-60 Outboard, Complete 120-degree thermostat replacement kit for and 2-stroke outboards ranging from to horsepower. Thermostat Kit 120 Degree Mercury Mariner 40 50 55 60 HP 3-Cyl Outboard 75692A13: Replaces Part Numbers Specifications. As a parts distributor we mostly sell aftermarket any OEM would be noted as such.

Designed for the 2-cylinder 40 HP and 3-cylinder 45, 50, 55, 60 model's. Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but designed to function same as - if better than.

specifications ouboaen:

  • for models: Mariner
  • for makes: Mercury
  • brand: Marinepartsdistributors
  • mpn: 775-20ka2
  • part type: Hp Thermostat
  • warranty: 1 Year
  • california prop 65 warning: This Product May Expose You To Chemicals Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov
  • country of origin: Taiwan
  • oem interchange part numbers1: 14586a4
  • oem interchange part numbers2: 14586a6
  • oem interchange part numbers3: 75692a13
  • oem interchange part numbers4: G13122
  • oem interchange part numbers5: G13123
  • source: Aftermarket

general ouboaen:

  • Boat Parts > Outboard Engines Components > Other
  • condition: New

payments ouboaen:

  • other
  • credit card: Discover
  • wallet: Google-pay

returns ouboaen:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

shipping ouboaen:

  • class: Economy, Standard, Expedited, One-day
  • transit: 4-7 Days
  • cost: $0.00
  • service: Economy, Standard, Expedited, Overnight
  • type: Fixed

seller ouboaen:

  • rating: 98.7%
  • city: Deerfield Beach, Florida
  • # reviews: 21873

offer ouboaen:

  • sold: 0
  • options: Ship-to-home
  • started: March 6, 2026
  • quantity: 7
  • availability: In Stock
for models: mariner, for makes: mercury, part type: hp thermostat, warranty: 1 year, california prop 65 warning: this product may expose you to chemicals which are known to the state of california to cause cancer and birth defects or other reproductive harm. for more information go to www.p65warnings.ca.gov, country of origin: taiwan, oem interchange part numbers1: 14586a4, oem interchange part numbers2: 14586a6, oem interchange part numbers3: 75692a13, oem interchange part numbers4: g13122, oem interchange part numbers5: g13123, source: aftermarket,
category: boat parts > outboard engines components, sku: 22455889984130723,
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