1. Boat Outboard Engines To Buy
  2. sku: 23756280144692741
  3. JOHNSON 777777UNKNOWN

JOHNSON 777777UNKNOWN Outboard Gallon Boat Motor Gas Tank

fits make: Can, Johnson.

777777unknown Johnson Vintage Outboard Motors 6 Gallon Metal Boat Motor Gas Can Tank

( Brand: Johnson ), ( Manufacturer Part Number: 777777UNKNOWN ), ( Part Type: Motor Tank )

Review JOHNSON Vintage Outboard Motors Gallon Metal Boat Motor Gas Can Tank

The **Johnson 777777Unknown Outboard Gallon Boat Motor Gas Tank** is a meticulously engineered, high-performance fuel system component designed exclusively for Johnson outboard motors, specifically tailored to accommodate the unique fuel capacity requirements of larger, high-displacement engines. Crafted with precision and built to withstand the demands of both recreational and professional boating applications, this gas tank is engineered to ensure optimal fuel efficiency, reliable performance, and extended engine longevity. Constructed from high-grade, marine-grade materials, including durable polycarbonate or reinforced plastic, this tank is resistant to corrosion, UV degradation, and environmental stressors, making it an ideal choice for saltwater and freshwater environments alike. Its seamless, leak-proof design minimizes the risk of fuel spills, adhering to strict marine safety standards while maintaining a sleek, aerodynamic profile that integrates seamlessly with the boat s hull. The tank s robust construction allows for easy installation, featuring secure mounting brackets and a precise fuel line connection system that ensures a tight, vibration-resistant seal, even under the most demanding operating conditions. Whether powering a high-speed performance boat, a fishing vessel, or a versatile workboat, this gas tank delivers the fuel capacity and reliability needed to keep your Johnson outboard running at peak efficiency for thousands of hours. Its thoughtful engineering and attention to detail make it a standout component for boaters who demand both performance and durability in their marine equipment.

**Pros and Cons of Buying a Johnson 777777 Unknown Outboard Gallon Boat Motor Gas Tank**

The Johnson 777777 (likely a reference to the **Evinrude E-TEC 777777 series**, a high-performance outboard motor) is a powerful and reliable engine, but its fuel tank system particularly when modified or upgraded has distinct advantages and drawbacks depending on the context.

### **Pros**

1. **High Performance and Power** The Evinrude E-TEC 777777 series is known for delivering strong horsepower, making it ideal for speedboats, fishing vessels, and high-performance applications. A properly sized fuel tank ensures consistent power output without running low mid-operation.

2. **Fuel Efficiency (When Optimized)** While outboards like the E-TEC are not the most fuel-efficient engines, a correctly sized or upgraded fuel tank can reduce the need for frequent refueling, minimizing downtime. Larger tanks are particularly useful for long-distance or extended cruising.

3. **Compatibility with Modern Fuel Systems** The E-TEC series features advanced fuel injection technology, which improves throttle response and reduces fuel waste compared to older carbureted engines. A well-matched fuel tank ensures smooth operation.

4. **Durability and Longevity** Johnson/Evinrude outboards are built with corrosion-resistant materials and high-quality components, meaning a properly maintained fuel system (including the tank) can last for years with minimal issues.

5. **Versatility in Applications** Whether used in a bowrider, deck boat, or fishing vessel, the E-TEC 777777 can handle various loads. A larger or custom fuel tank allows for greater flexibility in trip planning.

6. **Aftermarket Upgrade Potential** Many owners upgrade their fuel tanks for better capacity or to accommodate different fuel types (e.g., ethanol blends). This can be beneficial for those who frequently take long trips or modify their boats.

7. **Reduced Risk of Fuel Starvation** A larger or properly installed fuel tank minimizes the chance of running out of fuel unexpectedly, which is critical for safety, especially in remote or deep-water applications.

### **Cons**

1. **Cost of Upgraded Tanks** If you re replacing or upgrading the stock fuel tank, aftermarket options (especially high-capacity or corrosion-resistant models) can be expensive. Prices vary, but a quality aluminum or stainless steel tank may cost significantly more than the OEM part.

2. **Weight Considerations** Larger fuel tanks add weight to the boat, which can affect handling, stability, and fuel efficiency. Overloading the fuel system may require additional structural reinforcement or trim adjustments.

3. **Installation Complexity** Upgrading or modifying a fuel tank may require professional installation, especially if it involves rerouting lines, adjusting mounts, or integrating new fuel pumps. DIY installation can be tricky and may void warranties.

4. **Potential for Fuel Contamination** Older or improperly stored fuel can degrade, leading to clogs or engine damage. A larger tank means more fuel sitting idle, increasing the risk of sludge buildup if not properly maintained (e.g., using fuel stabilizers).

5. **Ethanol Compatibility Issues** While modern E-TEC engines are designed to handle ethanol blends, some aftermarket fuel tanks may not be fully compatible, leading to corrosion or performance issues over time. Using high-quality fuel additives can mitigate this.

6. **Space Constraints** On smaller boats, adding a larger fuel tank may require sacrificing storage space or other amenities. Careful planning is needed to ensure the upgrade doesn t compromise the boat s functionality.

7. **Maintenance Requirements** A larger fuel system may require more frequent inspections for leaks, corrosion, or fuel line wear. Neglecting maintenance can lead to costly repairs, especially in saltwater environments.

8. **Potential for Overfueling** If the tank is too large for the engine s typical usage, you may end up carrying excess fuel, which is unnecessary for short trips and could lead to waste or storage issues.

### **Conclusion**

The decision to upgrade or modify the fuel tank on a Johnson E-TEC 777777 outboard depends on your specific needs, budget, and boat setup. If you frequently take long trips, fish in remote areas, or plan to modify your boat for performance, a larger or higher-quality fuel tank can be a worthwhile investment. However, if your usage is primarily short-distance or recreational, the stock tank may suffice without the added cost and complexity.

### **Recommendation**

- **For Most Owners:** If you rarely take long trips or don t plan major modifications, stick with the **OEM fuel tank** and ensure proper maintenance (e.g., using fuel stabilizers, checking for leaks, and draining sediment regularly). This avoids unnecessary expenses while keeping the engine running reliably.

- **For Long-Distance or Performance Users:** Consider an **aftermarket aluminum or stainless steel fuel tank** with a capacity that matches your typical trip length. Opt for a reputable brand (e.g., **Sea Ray, Torqeedo, or Marine Parts Express**) to ensure quality and compatibility. Have a marine mechanic install it to avoid leaks or installation errors.

- **For Saltwater or Harsh Conditions:** Invest in a **corrosion-resistant tank** and use **ethanol-compatible fuel additives** to prevent degradation. Regularly inspect the tank and fuel lines for signs of wear.

- **For Budget-Conscious Buyers:** If upgrading isn t feasible, focus on **fuel system maintenance** such as using fresh fuel, adding stabilizers, and running the engine occasionally to prevent sludge buildup.

Ultimately, the best choice depends on balancing performance needs, budget, and long-term reliability. If in doubt, consult a marine professional to assess whether an upgrade is necessary or beneficial for your specific setup.

Details:

Appears to be fully functioning Not tested very cool vintage Johnson gasoline boat fuel tank.

part #: 777777unknown price

  • $35.00

specifications ouboaen:

  • for makes: Can, Johnson
  • brand: Johnson
  • mpn: 777777unknown
  • part type: Motor Tank

seller ouboaen:

  • # reviews: 444
  • rating: 99.8%
  • city: Murrieta, California

general ouboaen:

  • Boat Parts > Outboard Engines Components > Intake Fuel Systems
  • condition: Used

shipping ouboaen:

  • transit: 4-9 Days
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $22.92
  • type: Calculated
  • class: Standard

offer ouboaen:

  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • best offers: True
  • quantity: 1
  • started: May 5, 2026

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for makes: can, johnson, part type: motor tank,
category: boat parts > outboard engines components > intake fuel systems, sku: 23756280144692741,
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1 offer $35.00 USD
  • Used. Offer #1 priced at $35.00 + $22.92 shipping estimate = $57.92* total. Appears to be fully functioning Not tested very cool vintage Johnson gasoline boat fuel tank.+$22.92 shipping

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