Yamaha 2T 9.9HP–15HP Lower Unit Assembly
Part Number: 63V-45300-10-4D
Category: Lower Units
Compatible Models: Yamaha 2-Stroke 9.9HP–15HP Outboard Motors
Overview
The Yamaha 2T 9.9HP–15HP Lower Unit Assembly is a genuine OEM replacement engineered for optimal performance and long-term reliability. Designed specifically for Yamaha’s 2-stroke outboards, this lower unit ensures smooth power delivery, efficient thrust, and dependable operation — even in demanding marine conditions.
Key Features
1. Durable, Corrosion-Resistant Build
Constructed from premium marine-grade materials, this lower unit resists corrosion, rust, and wear — perfect for both saltwater and freshwater use.
2. Optimized Gear Ratio
Delivers efficient power transfer and improved acceleration, helping your outboard achieve top performance across various boating applications.
3. Smooth, Quiet Operation
Engineered for reduced vibration and minimal noise, providing a smoother, more enjoyable ride.
4. Perfect OEM Fit
Designed specifically for Yamaha 2T 9.9HP–15HP models to ensure seamless compatibility, easy installation, and precise performance.
5. User-Friendly Installation
Straightforward setup allows both professional mechanics and DIY enthusiasts to install the assembly with ease.
Benefits
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Enhanced Performance: Optimized thrust and smooth gear engagement for efficient handling.
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Improved Fuel Economy: Designed for efficient power delivery, helping reduce fuel consumption.
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Peace of Mind: Genuine Yamaha part ensures factory-level reliability and quality.
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Low Maintenance: Easy to inspect, service, and maintain for long-term dependability.
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Versatile Use: Ideal for recreational boating, fishing, and light commercial applications.
Specifications
| Specification | Details |
|---|---|
| Model Compatibility | Yamaha 2-Stroke 9.9HP–15HP |
| Part Number | 63V-45300-10-4D |
| Gear Ratio | Optimized factory specification |
| Construction | Marine-grade corrosion-resistant materials |
| Operation | Smooth and quiet |
| Installation | Direct OEM replacement |
Why Choose Genuine Yamaha Parts?
Using authentic Yamaha components like this lower unit assembly helps protect your investment. Genuine Yamaha parts are designed, tested, and approved by Yamaha engineers to deliver unmatched reliability and performance — ensuring your outboard performs exactly as intended.
Conclusion
The Yamaha 2T 9.9HP–15HP Lower Unit Assembly (63V-45300-10-4D) is the smart choice for boaters who value performance, reliability, and peace of mind on the water. With Yamaha’s legendary engineering, this lower unit keeps your outboard running smoothly and efficiently for years to come.
Upgrade your outboard today — experience the confidence that only genuine Yamaha parts provide.
✅ Genuine Yamaha OEM Part
✅ Built for 9.9HP–15HP 2-Stroke Models
✅ Engineered for Performance, Efficiency, and Longevity
