YAMAHA 6E5-45301-07-8D Outboard Lower Casing 2011-25 115HP 90HP

( Manufacturer Part Number: 6E5-45301-07-8D ), ( Warranty: 90 Day ), ( Country Of Origin: Japan )

Review YAMAHA Oem 2011 25 115hp Outboard Lower Casing 90hp fits F115 F90 F75

The **Yamaha F115 115HP Outboard Lower Casing (Part Number: 6E5-45301-07-8D)** is a high-performance, precision-engineered component designed to complement Yamaha s legendary F-Series outboard motors, specifically the **F115 115HP model** from the **2011-2025 production years**. This lower unit casing is a critical part of the outboard s propulsion system, built to withstand the demands of both recreational and serious boating applications. Crafted from **high-strength marine-grade aluminum**, the casing is engineered for durability, corrosion resistance, and optimal power transfer, ensuring reliable performance even under the most challenging conditions. The **F90 and F75 90HP and 75HP models** also share compatibility with this casing, making it a versatile upgrade or replacement option for Yamaha s mid-range outboard lineup.

The **F115 lower casing** features Yamaha s signature **F-Series design**, incorporating a **compact yet robust structure** that maximizes power efficiency while minimizing weight. Its **precision-machined surfaces** and **sealed bearings** reduce friction and wear, extending the lifespan of the outboard s internal components. The casing is designed to integrate seamlessly with Yamaha s **electronic fuel injection (EFI) system**, ensuring smooth throttle response and optimal fuel delivery for consistent horsepower output. Whether installed on a **performance fishing boat, a high-speed cruiser, or a versatile utility vessel**, this lower unit provides the structural integrity and performance reliability expected from Yamaha s engineering excellence.

For boaters seeking **long-term reliability and enhanced performance**, this lower casing is an ideal choice, offering **OEM-level quality** that matches Yamaha s reputation for innovation. Its **universal fitment** across multiple F-Series models including the **F90 and F75** makes it a cost-effective solution for owners looking to upgrade or restore their outboard s functionality. With **rigorous testing and adherence to Yamaha s strict manufacturing standards**, this component ensures that your vessel maintains peak efficiency, whether cruising at full throttle or operating at lower speeds for extended periods. Whether you re a seasoned angler, a weekend warrior, or a professional mariner, the **Yamaha F115 115HP Lower Casing (6E5-45301-07-8D)** delivers the strength, precision, and performance required to keep your outboard running at its best.

### **Pros and Cons of buying a Yamaha F115 115HP Outboard (2011-2025, Model #6E5-45301-07-8D) with F90/F75 Lower Casings**

#### **Pros**

1. **Reliable Yamaha Brand**

Yamaha is a well-established manufacturer known for durable, high-performance outboards. The F115 series is part of their mid-range line, which balances power and efficiency.

2. **High Horsepower (115HP) for Versatility**

At 115HP, this engine is suitable for a wide range of boats, including mid-sized fishing boats, cruisers, and performance boats. It provides strong acceleration and towing capability.

3. **Fuel Efficiency**

Compared to larger outboards, the F115 is relatively fuel-efficient for its power class, making it cost-effective for long trips.

4. **Wide Compatibility**

The lower casing (F90/F75) is designed to fit various boat hulls, including those originally built for smaller or larger engines. This flexibility makes it a good choice for boat owners who may want to upgrade or replace an existing engine.

5. **Aftermarket Support**

Yamaha has a strong aftermarket presence, meaning you ll find plenty of parts, accessories, and service providers for maintenance and upgrades.

6. **Good for Fishing and Cruising**

The F115 is well-suited for both fishing and leisure cruising, offering a balance between power and smooth operation.

7. **Lower Cost Compared to Larger Engines**

While not the cheapest option, it is more affordable than high-end outboards like the F230 or F300, making it a practical choice for budget-conscious buyers.

8. **Durability and Longevity**

Yamaha engines are known for lasting a long time with proper maintenance. The F115, in particular, has a solid reputation for reliability in the 100-150HP range.

---

#### **Cons**

1. **Age of the Model (2011-2025 Range)**

While Yamaha has made improvements over the years, the F115 from the early 2010s may lack some of the newer fuel efficiency and emissions upgrades found in later models (e.g., 2020 ). If you re buying a used unit, ensure it has been well-maintained.

2. **Potential for Wear and Tear**

If purchasing a used F115, there s a risk of hidden issues such as worn gears, fuel system problems, or electrical failures. Always inspect the engine thoroughly or have a marine mechanic check it before buying.

3. **Lower Casing Compatibility Issues**

The F90/F75 lower casing is designed for smaller engines (e.g., F75, F90), and while it can work with the F115, there may be slight inefficiencies in propulsion compared to a properly matched lower unit. This could affect fuel economy and performance.

4. **Maintenance Requirements**

Like all outboards, the F115 requires regular maintenance, including oil changes, spark plug replacements, and cooling system checks. Neglecting maintenance can lead to costly repairs.

5. **Resale Value**

While Yamaha engines hold their value reasonably well, a used F115 may not retain as much resale value as newer models, especially if it has high mileage or signs of wear.

6. **Noise and Vibration**

Some older Yamaha outboards, including the F115, can be slightly noisier and vibrate more than newer, refined models. This may affect comfort on long trips.

7. **Environmental Regulations**

If you plan to use the boat in areas with strict emissions standards, ensure the F115 meets current requirements. Older models may need modifications or upgrades to comply with newer regulations.

---

### **Conclusion**

The **Yamaha F115 115HP outboard (2011-2025, Model #6E5-45301-07-8D) with F90/F75 lower casings** is a solid choice for boat owners needing a reliable, mid-range engine for fishing, cruising, or light towing. Its strengths lie in Yamaha s reputation for durability, good power output, and compatibility with various hulls. However, potential buyers should be cautious about the age of the model, the compatibility of the lower casing, and the need for thorough pre-purchase inspection if buying used.

If you prioritize **performance, reliability, and versatility**, this engine is a good investment, especially if well-maintained. If you re looking for **newer emissions compliance, better fuel efficiency, or a more refined ride**, you may want to consider a more recent model (e.g., 2020 F115 or F135).

---

### **Recommendation**

- You need a **powerful yet affordable** outboard for fishing or cruising.

- You re comfortable with **regular maintenance** and have a budget for potential repairs.

- The **lower casing (F90/F75) is compatible** with your boat s hull and propulsion needs.

- You can **inspect the engine thoroughly** or have a mechanic verify its condition before purchase.

- You want **newer emissions-compliant** technology (look at 2020 F115 or F135 models).

- You need **better fuel efficiency** (consider a Yamaha F135 or F155 with newer fuel injection).

- Your boat requires **optimal lower unit matching** (a dedicated F115 lower casing would be ideal).

- You re unsure about the **engine s service history** (opt for a newer or certified pre-owned unit).

**Final Verdict:** The Yamaha F115 is a **strong, dependable choice** for the right buyer especially those who prioritize reliability over cutting-edge features. Just ensure proper inspection and maintenance to maximize its lifespan.

Details:

2017-2025 F75 75hp Yamaha Outboard 4 Stroke. 2016 2025 F90 90hp Yamaha Outboard 4 Stroke.

part #: 6e545301078d price

• $505.00

specifications ouboaen:

• for models: F115, F90, F75
• for makes: Yamaha
• mpn: 6e5-45301-07-8d
• warranty: 90 Day
• country of origin: Japan

seller ouboaen:

• rating: 99.7%
• # reviews: 1500
• city: Suffolk, Virginia

shipping ouboaen:

• carrier: UPS
• service: UPS Ground
• transit: 4-9 Days
• class: Standard
• cost: $39.00
• type: Fixed

returns ouboaen:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

general ouboaen:

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

offer ouboaen:

• sold: 0
• started: May 30, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock
• quantity: 1

payments ouboaen:

• other
• wallet: Apple-pay
• credit card: Diners-club

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