YAMAHA 93399-99916-00 Bearing Nos 3ET1

( Part Type: Bearing ), ( UPC: 933999991600 )

Review YAMAHA Oem Bearing Nos

The **Yamaha 93399-99916-00 bearing (3ET1 NOS)** is a high-performance, genuine OEM replacement part designed specifically for Yamaha outboard motors, ensuring seamless integration and optimal functionality. This **New Old Stock (NOS)** bearing is meticulously sourced from Yamaha s original inventory, guaranteeing that it meets the manufacturer s exact specifications without the wear or degradation typically associated with used or aftermarket alternatives. Crafted from premium-grade materials, this bearing is engineered to withstand the rigorous demands of marine environments, including exposure to saltwater, fluctuating temperatures, and continuous mechanical stress. The **3ET1** designation indicates its compatibility with select Yamaha outboard models, particularly those featuring the **3.0L V6 engine series**, where it plays a critical role in supporting the crankshaft assembly, ensuring smooth operation and longevity of the powerplant. Its precision-machined surfaces and robust construction minimize friction, reducing heat buildup and preventing premature failure key factors in maintaining peak performance and fuel efficiency. Whether used in recreational fishing boats, high-speed cruisers, or performance yachts, this bearing delivers the reliability and durability expected from Yamaha s original equipment, making it an indispensable component for both maintenance and restoration projects. For enthusiasts and professionals alike, investing in this **NOS bearing** ensures a direct fit with no compromises, preserving the integrity of the engine while extending its operational lifespan.

### **Analysis of buying a Yamaha 93399-99916-00 Bearing (3ET1 NOS)**

1. **New Old Stock (NOS) Quality** The bearing is described as NOS, meaning it is new but previously stocked by a dealer. This suggests it has been handled with care and may still retain high-quality standards, though not as pristine as a brand-new, unopened unit.

2. **Compatibility** The part number (3ET1) is a standard bearing used in various Yamaha engines, particularly in older models like the FZ1, FZR750, and some outboard motors. If your application requires this exact bearing, it will fit without modification.

3. **Potential Cost Savings** NOS parts are often priced lower than brand-new OEM bearings, especially if sourced from a reputable dealer. This can be advantageous if you re working on a budget or replacing a worn-out bearing.

4. **Reliability** Yamaha bearings are known for durability, and a NOS unit should perform reliably if installed correctly. The bearing may have been stored properly, reducing the risk of premature failure due to oxidation or contamination.

5. **Ease of Installation** Since it s a standard bearing, installation should be straightforward if you have the right tools and experience. Many mechanics and DIYers can replace it without professional help.

6. **Long-Term Performance** If the bearing is genuine and in good condition, it can extend the life of your engine by reducing friction and wear in the crankshaft or camshaft system.

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1. **Condition Uncertainty** Despite being NOS, the bearing may have minor wear or handling marks from previous storage or use. It s not guaranteed to be as pristine as a factory-sealed unit, which could affect its longevity.

2. **Potential for Counterfeit or Mismatched Parts** There is a risk of purchasing a fake or mismatched bearing, especially if buying from an unverified seller. Always verify the seller s reputation and check for authenticity markings (e.g., Yamaha s branding, part number engraving, or serial numbers).

3. **Limited Warranty or Return Policy** NOS parts often come with no warranty or limited return options. If the bearing fails shortly after installation, you may be out of luck unless the seller offers a refund or replacement.

4. **Age of the Part** Even if NOS, the bearing could be several years old. Over time, stored bearings can develop rust or corrosion if not properly sealed, which could lead to premature failure upon installation.

5. **Compatibility Risks** While the 3ET1 is a common bearing, double-check that it matches your exact engine model and application. Some engines may require specific tolerances or additional seals that aren t included with the bearing alone.

6. **Installation Challenges** If the bearing is seized or damaged from storage, removing it could be difficult, requiring specialized tools or professional help. Improper installation (e.g., incorrect lubrication or misalignment) can void any potential benefits.

7. **Price Variability** NOS parts can sometimes be overpriced by unscrupulous sellers. Researching market prices on platforms like eBay, RockAuto, or specialized forums can help ensure you re getting a fair deal.

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The Yamaha 93399-99916-00 bearing (3ET1 NOS) is a viable option for replacing a worn-out bearing in compatible Yamaha engines, provided you take precautions to ensure its authenticity and condition. The pros such as potential cost savings, reliability, and ease of installation outweigh the cons if you source it from a trusted seller and verify its quality. However, the cons particularly the risks of counterfeit parts, uncertain condition, and lack of warranty must be carefully considered.

If you re confident in the seller s reputation and the bearing s condition, purchasing it can be a cost-effective solution. However, if you re unsure, opting for a brand-new OEM bearing or a high-quality aftermarket alternative (e.g., from NSK or INA) may offer better long-term peace of mind.

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1. **Verify the Seller** Purchase from a well-reviewed dealer or a trusted online marketplace (e.g., eBay with feedback, RockAuto, or a local Yamaha specialist). Avoid sellers with no history or poor ratings.

2. **Inspect the Bearing** If possible, request photos or a video of the bearing in its packaging. Look for signs of rust, damage, or improper storage. A genuine NOS bearing should appear clean and free of defects.

3. **Check for Authenticity** Ensure the part number (3ET1) and Yamaha branding are clearly visible and match the original specifications. Some counterfeit bearings may have similar markings but inferior materials.

4. **Consider New OEM or Aftermarket Alternatives** If budget allows, a new OEM bearing or a reputable aftermarket brand (e.g., NSK 6303 or INA 6303) may offer better warranties and longevity, especially if you re unsure about the NOS bearing s condition.

5. **Proper Installation** Whether you install it yourself or take it to a mechanic, ensure the bearing is correctly lubricated, aligned, and sealed to prevent premature failure.

6. **Monitor Performance** After installation, monitor the engine for unusual noises, vibrations, or overheating, which could indicate bearing issues. If problems arise, address them promptly.

**Final Verdict:** If you re confident in the bearing s quality and the seller s legitimacy, the Yamaha 93399-99916-00 NOS bearing is a practical choice for a cost-effective replacement. However, if you prioritize warranty coverage and absolute reliability, a new OEM or high-quality aftermarket bearing may be the safer option. Always weigh the risks and benefits based on your specific needs and budget.

Details:

If the original package is included it may show signs of wear. Bearing is new and in excellent condition, original packaging. All parts are in stock and ready to ship.

OEM Yamaha 93399-99916-00 Bearing 3ET1 NOS. Items are shipped using USPS, UPS, and FedEx.

part #: 933999991600 prices

• $25.41-$64.46

specifications bearingmotorcycleiz:

• for makes: Yamaha
• part type: Bearing
• upc: 933999991600

offer bearingmotorcycleiz:

• quantity: 2
• options: Ship-to-home
• best offers: True
• availability: In Stock
• started: February 25, 2026
• sold: 0

payments bearingmotorcycleiz:

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

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

seller bearingmotorcycleiz:

• rating: 99.9%
• city: Ashaway, Rhode Island
• # reviews: 128243

shipping bearingmotorcycleiz:

• cost: $0.00
• service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
• transit: 3-9 Days
• class: Standard, Expedited, One-day
• carrier: USPS, UPS
• type: Calculated

returns bearingmotorcycleiz:

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

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