BFO UO1NFJ Outboard Impeller Jet Kit 40HP 50HP 6H4-44352-02

( Brand: Bfo ), ( Manufacturer Part Number: UO1NFJ ), ( Part Type: Jet Impeller ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Fitment: For Yamaha 40hp 50hp 2 Stroke Outboard 1984-1995 ), ( Important Note: 100 New Alternator, Not Refurbished ), ( Country Of Origin: China )

Review BFO Outboard Impeller Kit Yamaha 40hp 50hp Jet fits 1986–1995

The **BFO UO1NFJ Outboard Impeller Kit** is a meticulously engineered replacement solution designed specifically for Yamaha 40HP and 50HP jet-drive models produced between 1986 and 1995, corresponding to the original equipment part number **6H4-44352-02**. This high-performance impeller kit is crafted to restore optimal water flow, enhance propulsion efficiency, and extend the longevity of your outboard s drive system, ensuring reliable performance whether cruising on calm lakes or tackling rougher waters. Engineered from durable, corrosion-resistant materials, the impeller blades are precision-machined to match the original Yamaha specifications, guaranteeing a seamless fit and improved hydrodynamic efficiency. The kit includes all necessary components such as the impeller, shaft, and seals eliminating the need for additional purchases and simplifying installation. Whether you re preparing for a weekend fishing trip or restoring an older vessel to peak condition, this impeller kit delivers the precision and durability required to keep your Yamaha jet-drive running smoothly for years to come. Ideal for both DIY enthusiasts and professional mechanics, the BFO UO1NFJ kit ensures a straightforward upgrade that pays dividends in fuel efficiency, reduced strain on the drive system, and enhanced overall performance.

### **Pros and Cons of buying a BF0UO1NFJ Outboard Impeller Kit for Yamaha 40HP/50HP Jet (1986 1995, Part #6H4-44352-02)**

#### **Pros**

1. **Direct Fit and Compatibility** This impeller kit is specifically designed for Yamaha 40HP and 50HP jet-drive outboards from 1986 to 1995, ensuring a proper fit without modification. The part number (6H4-44352-02) confirms it matches your engine s internal dimensions, reducing the risk of installation errors.

2. **Improved Performance and Efficiency** Worn or damaged impellers can reduce thrust and fuel efficiency. A new impeller restores proper water flow, which may lead to better acceleration, smoother operation, and improved fuel economy. This is particularly noticeable if the original impeller was degraded over time.

3. **Prevents Further Damage** A failing impeller can cause excessive vibration, strain on the drive unit, or even damage to the jet pump or lower unit. Replacing it proactively avoids costly repairs to the drive system or impeller housing.

4. **OEM Quality (If Authentic)** If sourced from Yamaha or an authorized dealer, this kit will meet the manufacturer s specifications, ensuring durability and reliability. Counterfeit or aftermarket parts may not provide the same longevity or performance.

5. **Easy Installation** The kit typically includes all necessary components (impeller, seals, and sometimes a gasket) and is designed for straightforward replacement. Most DIYers with basic mechanical skills can install it in a few hours with standard tools.

6. **Cost-Effective Maintenance** Replacing an impeller is far cheaper than repairing or replacing a damaged jet pump or lower unit. The cost is a fraction of labor-intensive repairs, making it a practical preventive measure.

7. **Extended Engine Life** Proper impeller function reduces stress on the engine and drive components, potentially extending the overall lifespan of the outboard.

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#### **Cons**

1. **Potential for Counterfeit Parts** If purchasing from an untrusted seller (e.g., third-party online marketplaces without verification), there s a risk of receiving a low-quality or fake impeller kit. This could lead to premature failure or poor performance. Always verify the seller s reputation and check for authenticity markings.

2. **Limited Longevity Without Proper Maintenance** Even a new impeller will wear out over time, especially in rough conditions (e.g., boating in debris-laden water or frequent towing). Regular inspection and maintenance (e.g., cleaning the jet pump) are necessary to maximize its lifespan.

3. **Skill Dependency for Installation** While the installation is relatively simple, mistakes such as improper sealing, misalignment, or overtightening can lead to leaks or damage. Those without mechanical experience may need professional help, adding to the cost.

4. **Part Availability and Lead Times** If the kit is discontinued or hard to find, delivery times may be longer than expected. Stocking up or ordering early is advisable, especially if you re preparing for a boating season.

5. **Cost Relative to Other Upgrades** While affordable, the cost may feel high if you re on a tight budget. Prioritizing this repair over other potential upgrades (e.g., fuel system maintenance, propeller cleaning) requires balancing immediate needs with long-term benefits.

6. **Environmental and Operational Factors** If the boat is frequently used in murky water or with heavy loads, the impeller may wear faster than expected. In such cases, more frequent replacements or additional protective measures (e.g., strainers) may be needed.

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### **Conclusion**

The **BF0UO1NFJ impeller kit for your Yamaha 40HP/50HP jet (1986 1995)** is a **highly recommended** purchase for maintaining or restoring optimal performance. The benefits direct compatibility, improved efficiency, and preventive maintenance far outweigh the minor drawbacks, provided you source the kit from a reputable seller and perform the installation correctly. This is a **cost-effective and straightforward** way to avoid more expensive repairs down the line.

If you re unsure about installation, consulting a Yamaha dealer or a marine mechanic ensures the job is done properly. For those comfortable with DIY repairs, this kit is an easy and worthwhile investment to keep your outboard running smoothly for years to come.

### **Recommendation**

- **Buy from an authorized Yamaha dealer or a trusted online retailer** (e.g., Yamaha s official website, reputable marine parts suppliers) to avoid counterfeit parts.

- **Inspect the impeller and surrounding components** (e.g., seals, housing) during installation to address any additional wear.

- **Follow Yamaha s maintenance guidelines** for your specific model to prolong the life of the new impeller.

- **Consider pairing this replacement with other routine maintenance** (e.g., cleaning the jet pump, checking fuel lines) for comprehensive upkeep.

This upgrade is **worth the investment** for anyone looking to maintain their Yamaha jet-drive s performance and reliability.

Details:

Package included. It begins from the date purchased. Factory Warranty. OE/Part number.

>>you might also like. 663-44366-00,6H4-W0078-00- 6H4-W0078-A0-00. Best Costumer Service. For the Following 50HP Yamaha 2 Stroke Outboards:50 1984 -1987, 50 1988-1994, PRO 1987, 1988-1990, P50 1991-1994, 1986 -1995.

Type:Outboard water pump impeller Kit. For the Following 40HP Yamaha 2 Stroke Outboards:40 1984 -1987, 40 1988-1994. Fast Shipping. offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer.

6H4-W0078,6H4-W0078-A0, 6H4-W0078-00,18-3429,6H4-44352-02,663-44323-00,90280-03024-00,663-44322-00. Material Rubber Stainless Steel Plastic.

part #: uo1nfj prices

• $29.41-$31.00

specifications ouboaen:

• for makes: Yamaha
• for years: 1986-1995
• brand: Bfo
• mpn: Uo1nfj
• part type: Jet Impeller
• california prop 65 warning: California Prop 65 Warning
• fitment: For Yamaha 40hp 50hp 2 Stroke Outboard 1984-1995
• important note: 100 New Alternator, Not Refurbished
• country of origin: China

payments ouboaen:

• credit card: Mastercard
• wallet: Apple-pay
• other

general ouboaen:

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

offer ouboaen:

• started: April 28, 2026
• sold: 0
• quantity: 3
• options: Ship-to-home
• availability: In Stock

returns ouboaen:

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

shipping ouboaen:

• service: Standard
• type: Fixed
• class: Standard
• cost: $0.00
• transit: 3-7 Days

seller ouboaen:

• city: Elk Grove Village, Illinois
• rating: 99.6%
• # reviews: 1213

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