JOHNSON 305711 Thermostat Housing Plate V4

( Brand: Johnson ), ( Manufacturer Part Number: 305711 ), ( Part Type: Thermostat Housing Plate )

Review JOHNSON Evinrude Thermostat Housing Plate New Free Shipping V4

The **Johnson 305711 Evinrude Thermostat Housing Plate V4** is a precision-engineered component designed specifically for Evinrude outboard motors, ensuring optimal performance and reliability in marine applications. This high-quality thermostat housing plate is crafted from durable, corrosion-resistant materials to withstand the harsh conditions of saltwater and frequent exposure to the elements, making it an essential part of the engine s cooling system. The V4 variant is tailored to fit the latest generation of Evinrude outboards, providing seamless integration with the thermostat assembly while maintaining the engine s thermal efficiency. Its robust construction helps regulate engine temperature by housing the thermostat, which controls coolant flow to prevent overheating and ensure consistent power delivery. Whether installed on a recreational boat, fishing vessel, or performance watercraft, this housing plate plays a critical role in prolonging engine life by maintaining proper operating temperatures under varying loads and environmental conditions. Built to meet Johnson s stringent quality standards, it combines precision machining with corrosion protection, offering a long-lasting solution for marine enthusiasts who demand durability and performance. For those performing routine maintenance or addressing cooling system issues, this thermostat housing plate is a straightforward yet vital replacement part that helps preserve the integrity of the Evinrude engine s cooling infrastructure.

### **Pros and Cons of buying a Johnson 305711 Evinrude Thermostat Housing Plate (V4)**

1. **Compatibility** This part is specifically designed for Evinrude E-TEC and E-TEC HP outboard motors, ensuring a proper fit and function without modification.

2. **OEM Quality** As an original equipment manufacturer (OEM) part, it meets the same standards as the one installed in new engines, reducing the risk of premature wear or failure.

3. **Reliability** The thermostat housing plate is a critical component in regulating engine temperature. A high-quality replacement ensures proper cooling and prevents overheating.

4. **Ease of Installation** Designed to fit standard Evinrude engines, it should integrate smoothly with existing components, reducing the need for additional tools or adjustments.

5. **Long-Term Performance** Using a genuine part helps maintain engine efficiency and longevity, avoiding potential issues from aftermarket alternatives that may not match the original specifications.

6. **Warranty Coverage** Purchasing from authorized dealers or Johnson s official channels may include warranty protection, offering peace of mind against defects.

7. **Support for Modern Engines** The V4 version is tailored for newer Evinrude models, ensuring compatibility with advanced fuel injection and electronic control systems.

1. **Cost** OEM parts are typically more expensive than aftermarket alternatives, which may be a consideration for budget-conscious buyers.

2. **Limited Availability** Depending on the region, this part may not be readily available at all marine supply stores, requiring online ordering or special ordering from dealers.

3. **Potential Overkill for Older Engines** If the engine is older and nearing the end of its service life, investing in a high-quality replacement may not be the most cost-effective choice.

4. **Installation Complexity** While designed for ease, replacing the thermostat housing plate may still require mechanical skill, especially if other components (e.g., gaskets, seals) need attention.

5. **Depreciation** Like all marine parts, the value of this component depreciates over time, and it may not hold significant resale value if the engine is later sold or scrapped.

---

### **Conclusion**

The **Johnson 305711 Evinrude Thermostat Housing Plate (V4)** is a well-engineered, reliable part that ensures proper engine cooling and performance for compatible Evinrude outboards. Its OEM status guarantees compatibility, durability, and support for modern engine systems, making it an excellent choice for owners who prioritize quality and longevity. However, the higher cost and potential availability issues may be drawbacks for some buyers.

For most **E-TEC or E-TEC HP engine owners** who want to maintain optimal performance and avoid cooling-related issues, this part is strongly recommended. If budget constraints are a concern, a thorough comparison with aftermarket alternatives (ensuring they meet OEM specifications) could be worthwhile, but only if the part is verified for compatibility and quality.

If you are replacing a worn or damaged thermostat housing plate in an Evinrude E-TEC or E-TEC HP engine, **purchasing the Johnson 305711 V4 is the best choice** for reliability and long-term engine health. Ensure you source it from an authorized dealer to confirm authenticity and warranty coverage. If cost is a major factor, weigh the risks of using a lower-quality alternative carefully, as improper cooling can lead to severe engine damage.

Details:

Shipped with USPS Ground Advantage. Johnson Evinrude Thermostat Housing Plate NEW. Free Shipping 305711 V4. Condition is New.

part #: 305711 prices

• $10.02-$20.88

specifications ouboaen:

• for makes: Evinrude, Johnson
• brand: Johnson
• mpn: 305711
• part type: Thermostat Housing Plate

offer ouboaen:

• quantity: 4
• sold: 0
• options: Ship-to-home
• started: February 12, 2026
• availability: In Stock

payments ouboaen:

• other
• credit card: Visa
• wallet: Paypal

shipping ouboaen:

• type: Calculated
• service: USPS Ground Advantage
• cost: $0.00
• carrier: USPS
• class: Standard
• transit: 5-11 Days

returns ouboaen:

• policy: No Returns

seller ouboaen:

• rating: 100.0%
• # reviews: 727
• city: Stamford, Connecticut

general ouboaen:

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

Johnson 305711 Is Similar To:

• 017612 017612 Evinrude Brp Johnson E-tec (38.2% similar) MC, evinrude, Johnson e-etc outboard motor 3 gallon remote oil tank w low sensor good for all and newer systems check model's including will not work with Fichte mounting bracket included...(September 1st, 2017)
• 0439195 5000334 0439195 5000334 Johnson-evinrude Fuel Pump (29.7% similar) Inventory: A1. Condition: unit has been inspected, tested, and approved by a certified outboard marine mechanic. Item: fuel pump Johnson evinrude: this is a used high pressure for 150, 175 hp v6 Fichte years...(April 19th, 2017)
• 395088 395088 Evinrude 1978-1994 85hp-300hp Johnson (23.1% similar) This will fit year model's 85HP-300HP Johnson evinrude outboard motors. This tilt and trim has been tested is in good working condition...(April 12th, 2017)
• 00000 Evinrude 1975 Johnson 85hp (31.7% similar) ...(February 21st, 2018)
• 0116761 Evinrude-johnson Bow Arm Assembly 089287000156 (32.5% similar) Bow arm assembly...(July 25th, 2017)
• 0123278 0123610 Omc Johnson Evinrude Outboard Motor Binnacle Control Box Handle Kit (35.1% similar) New handle kit fits single and dual mount binnacle controls...(May 28th, 2018)
• 0127084 Brp Evinrude Johnson Omc Stringer Thrust Washer (37.1% similar) Thrust washer...(July 2nd, 2018)
• 0127278 Brp Johnson Evinrude Single (42.3% similar) For 1996 and later systems check single binnacle remote controls. Only the cover-no switch or other. Single top mount Johnson evinrude remote control cover. Reference part number in good reusable condition-no fading-no cracks or broken areas...(January 26th, 2018)
• 0127280 Johnson Evinrude Nos Outboard Key (43.6% similar) Calculated shipping uses calculator. Sales: use shipping calculator to get charges. Buyer pays shipping except if free is offered. E of the value prop shaft. Note: ups cannot deliver to a PO. Under no circumstances will we falsify or undervalue export declared value documents. Torn, broken, written ...(February 19th, 2019)
• 0172522 Evinrude Johnson Oem Brp Outboard Ignition Kit 745419000677 (27.9% similar) 5 hp looking for something else. Items will only be accepted for return in their original condition, with absolutely no accessories missing. Correspondence via messaging is preferred...(May 6th, 2018)
• 0172574 New Genuine Johnson Evinrude Sending Unit Kit Lot (38.1% similar) ...(March 1st, 2018)