YAMAHA 688-45551-00 Gear Set Outboard 688-45560-00 MOTO1988 75-90 688-45571-00 688-45571-01

( Manufacturer Part Number: 688-45551-00 ), ( Part Type: Hp Gear ), ( Ipn: 688-45560-00 ), ( Oe/oem Part Number: 688-45560-00, 688-45571-00, 688-45551-01-00, 688-45551-00, 688-45571-01-00 ), ( Compatible Model: C75 Tlr 1994-1999, E75 Mlh 1995-2000, C80a E M Tol/ul 1997, C85 Tlr 1991-1996, Cv85 Etl 1989-1990, C90 Tl/xlr 1997-2001 ), ( Items Included: 26t Forward Gear Pinion X1, 26t Reverse Gear X1, 13t Gear Pinion Engranaje X1 ), ( Number In Pack: 3pcs ), ( Warranty: 1 Year )

Review YAMAHA Gear Set Outboard 75-90 Hp

The **Moto1988 688-45560-00 Gear Set** is a high-performance, precision-engineered transmission component designed exclusively for Yamaha outboard motors in the 75 to 90 horsepower range, ensuring seamless power delivery and optimal efficiency for both recreational and performance-driven boating applications. This meticulously crafted gear set is part of a carefully matched trio paired with the **688-45551-00** and **688-45571-00** components to restore or upgrade the internal drive mechanism of your Yamaha outboard, guaranteeing reliable operation and extended longevity. Engineered from durable, heat-resistant materials, these gears are built to withstand the demanding stresses of continuous use, whether you re cruising across calm waters or tackling rough seas at high speeds. The **688-45560-00** specifically serves as the intermediate drive gear, working in tandem with the pinion and reverse idler gears to transmit torque efficiently from the engine s output shaft to the propeller, minimizing wear and maximizing power transfer. This gear set is a direct-fit replacement, meticulously calibrated to match Yamaha s original specifications, ensuring a perfect alignment with the motor s internal components for smooth engagement and reduced backlash. Whether you re restoring a classic Yamaha outboard or upgrading an older model for improved performance, this gear set delivers the precision and durability required to keep your engine running at peak efficiency. The combination of these three gears **688-45560-00**, **688-45551-00**, and **688-45571-00** ensures a complete and balanced transmission system, reducing the risk of premature failure and enhancing the overall reliability of your outboard motor. Ideal for mechanics, boat owners, and marine enthusiasts seeking a cost-effective yet high-quality solution, this gear set is a testament to Moto1988 s commitment to providing authentic, performance-driven parts that restore and enhance Yamaha s legendary outboard performance.

### **Pros and Cons of buying a Moto1988 Gear Set (688-45560-00) for a Yamaha Outboard (75-90 HP) with Alternate Parts (688-45551-00, 688-45571-00)**

1. **Compatibility with Yamaha Outboards (75-90 HP)** The Moto1988 gear set (688-45560-00) is designed to fit Yamaha outboards in this power range, ensuring proper alignment and performance. The alternate parts (688-45551-00 and 688-45571-00) are likely part of the same system, providing additional components for a complete gearbox solution.

2. **Durability and Performance** Moto1988 is known for manufacturing high-quality marine gearboxes, offering reliable shifting and smooth operation. A well-maintained gear set can significantly extend the lifespan of your outboard motor by reducing wear on internal components.

3. **Aftermarket Support and Availability** As an aftermarket brand, Moto1988 gear sets are often more affordable than OEM (Original Equipment Manufacturer) parts, making them a cost-effective alternative for boat owners looking to upgrade or repair their gearbox.

4. **Ease of Installation** The design of these gear sets is typically straightforward, allowing for easier installation compared to some OEM units. Many users report that aftermarket gearboxes can be swapped in with minimal tools and without extensive modifications.

5. **Compatibility with Common Modifications** If you plan to modify your outboard (e.g., upgrading the prop, adjusting shift linkage, or installing a reverse lock), the Moto1988 gear set may offer more flexibility than stock units.

6. **Cost Savings vs. OEM Replacement** Purchasing an aftermarket gear set can be significantly cheaper than buying a new OEM unit, especially if your current gearbox is worn or damaged. This can be a practical solution for budget-conscious boat owners.

7. **Wider Range of Options** The inclusion of parts like the 688-45551-00 (likely a shift linkage or selector) and 688-45571-00 (possibly a reverse lock or shift mechanism) allows for customization, ensuring that all components work seamlessly together.

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1. **Potential Quality Variations** While Moto1988 is a reputable brand, aftermarket parts may not always match the precision engineering of OEM components. Inconsistent machining or material quality could lead to premature wear or failure, particularly under heavy loads or in harsh conditions.

2. **Limited Warranty Compared to OEM** Aftermarket gear sets often come with shorter warranties than OEM parts. If the gearbox fails shortly after installation, you may face higher repair costs without the same level of coverage.

3. **Compatibility Concerns with Modified Outboards** If your Yamaha outboard has been heavily modified (e.g., with non-standard shift linkages, custom props, or performance upgrades), the Moto1988 gear set may not integrate perfectly. This could result in binding, improper shifting, or even damage to the gearbox.

4. **Installation Risks** While generally straightforward, improper installation such as incorrect alignment, improper lubrication, or failure to secure components can lead to gearbox failure. Unlike OEM parts, aftermarket units may not include detailed installation guides tailored to every Yamaha model.

5. **Resale Value Impact** If you plan to sell your boat in the future, installing aftermarket gear sets (even high-quality ones) might slightly reduce its resale value compared to a boat with OEM components. Buyers often prefer stock or well-documented aftermarket upgrades.

6. **Potential for Incompatibility with Latest Yamaha Models** Yamaha frequently updates outboard designs, including gearbox configurations. While the Moto1988 gear set is designed for 75-90 HP models, newer iterations or specific trim variations might require slight adjustments or additional modifications.

7. **Limited Customer Support and Recalls** Aftermarket brands may have less robust customer support networks than Yamaha. If issues arise, resolving them could be more time-consuming, and recalls (if any) may not be as comprehensive as those for OEM parts.

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- **688-45551-00**: Likely a shift linkage or selector mechanism. Ensures smooth shifting between forward, neutral, and reverse. Critical for proper operation.

- **688-45571-00**: Possibly a reverse lock or shift mechanism. Essential for preventing accidental engagement of reverse, especially in high-speed applications.

Both parts should be sourced from the same manufacturer (Moto1988) to ensure compatibility and avoid mismatched components.

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The Moto1988 gear set (688-45560-00) paired with the alternate parts (688-45551-00 and 688-45571-00) is a **practical and cost-effective solution** for Yamaha outboard owners in the 75-90 HP range who need a gearbox upgrade or replacement. It offers durability, ease of installation, and compatibility with common modifications. However, potential drawbacks such as quality variations, shorter warranties, and installation risks must be carefully considered.

If your primary concern is **reliability and longevity**, and you are comfortable with aftermarket parts, this gear set is a strong choice. For **maximum peace of mind and warranty coverage**, an OEM replacement may be preferable, though it will likely cost more.

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1. **Verify Compatibility** Double-check that the gear set (688-45560-00) and alternate parts (688-45551-00, 688-45571-00) are explicitly listed for your Yamaha outboard model and year. Some aftermarket parts may require minor adjustments.

2. **Purchase from a Reputable Dealer** Buy from a trusted marine parts supplier or dealer with experience in Moto1988 gear sets. This ensures you receive genuine parts and proper installation guidance.

3. **Inspect for Wear Before Installation** If replacing an existing gearbox, inspect the mounting surfaces, shift linkage, and reverse mechanism for damage. Clean and lubricate all components thoroughly before installation.

4. **Follow Installation Instructions Carefully** Even if the process seems straightforward, follow the manufacturer s guidelines or consult a marine mechanic to avoid common mistakes (e.g., improper torque, misalignment).

5. **Consider a Professional Installation** If you are unsure about your mechanical skills, have a marine technician install the gear set to ensure proper alignment and function.

6. **Monitor Performance Post-Installation** After installation, test the gearbox under various loads and speeds. Listen for unusual noises (grinding, rattling) and check for smooth shifting. Address any issues promptly to prevent further damage.

7. **Keep Records** Document the installation date, parts used, and any modifications. This helps with warranty claims (if applicable) and future troubleshooting.

**Final Verdict:** The Moto1988 gear set is a **solid aftermarket option** for Yamaha 75-90 HP outboards, offering a balance of cost, performance, and compatibility. With proper installation and maintenance, it can provide reliable service for many years. However, weigh the trade-offs against OEM parts if budget and warranty coverage are critical factors in your decision.

Details:

Your encouragement will keep us moving forward. Delivery details Your satisfaction is our final goal. 26T Forward Gear Pinion x1.

Gear Set For Yamaha Outboard 75-90 HP 688-45560-00 688-45551-00 688-45571-00 Note: Please Compare Your Original Unit With The Picture. 100% Brand New and High Quality. Please be patient.

part #: 6884555100 prices

• $86.99-$154.00

specifications ouboaen:

• for makes: Yamaha
• mpn: 688-45551-00
• part type: Hp Gear
• ipn: 688-45560-00
• oe/oem part number: 688-45560-00, 688-45571-00, 688-45551-01-00, 688-45551-00, 688-45571-01-00
• compatible model: C75 Tlr 1994-1999, E75 Mlh 1995-2000, C80a E M Tol/ul 1997, C85 Tlr 1991-1996, Cv85 Etl 1989-1990, C90 Tl/xlr 1997-2001
• items included: 26t Forward Gear Pinion X1, 26t Reverse Gear X1, 13t Gear Pinion Engranaje X1
• number in pack: 3pcs
• warranty: 1 Year

offer ouboaen:

• started: February 28, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• best offers: True
• quantity: 5

seller ouboaen:

• rating: 99.1%
• # reviews: 1181
• city: Florence, Kentucky

returns ouboaen:

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

shipping ouboaen:

• transit: 4-9 Days
• service: Standard
• class: Standard
• cost: $0.00
• type: Fixed

payments ouboaen:

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

general ouboaen:

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

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