

Outboard gesres set for Yamaha F200-250HP 4 STROKE
premium-grade marine gear set is engineered specifically for high-horsepower Yamaha F200 and F250 4-stroke lower units. Designed as a direct OEM replacement, this 3-piece set (Forward, Reverse, and Pinion) delivers the precise mesh, exceptional torque resistance, and smooth power transfer required by demanding commercial and recreational marine operations.
Key Features & Product Highlights
- Exact OEM Fitment: Engineered to the exact specifications of Yamaha's V6 lower units, ensuring a perfect drop-in replacement, flawless tooth alignment, and zero operational vibration.
- Heavy-Duty Forged Steel Construction: Unlike cheap casted components, our gears are forged from high-density, marine-grade alloy steel to handle high-RPM shifting and extreme hydrodynamic loads.
- Precision CNC Tooth Shaving: Advanced CNC machining and micro-polishing technologies ensure ultra-smooth gear engagement, significantly reducing friction, lower unit heat build-up, and gear whine.
- Advanced Surface Case-Hardening: Utilizes a precise gas-carburizing heat treatment process. This creates an ultra-hard outer layer ($>60\text{ HRC}$) to resist pitting and pitting wear, while maintaining a shock-absorbing inner core to prevent sudden tooth breakage.
- Saltwater Corrosion Defense: Treated with a specialized marine-grade anti-corrosion coating to shield against severe saltwater degradation and prolonged underwater exposure.
Technical Specifications
Parameter | Specifications |
Compatible Brand | Yamaha Outboard Motors |
Engine Models | F200 / F250 (Four-Stroke V6 Series) |
Components Included | 1 x Forward Gear, 1 x Reverse Gear, 1 x Pinion Gear (3-Piece Set) |
Manufacturing Process | Precision Forging + CNC Machining + Case Hardening |
Gear Type | High-Precision Helical Gears |
Application | Marine Propulsion Lower Unit Remanufacturing & Fleet Maintenance |
Why Choose Our Gear Set? (The Quality-Driven Pathway)
Engineered for High-Horsepower ReliabilityLarge-displacement outboards like the Yamaha F200 and F250 exert tremendous torque on the lower unit gear train. Substandard aftermarket gears often suffer from premature pitting, tooth chipping, or catastrophic stripping under heavy loads or sudden acceleration, leading to expensive downtime.
Cross-Reference & Compatibility
- Note: Please cross-check your specific outboard model year, stroke type, and shaft length. If you are uncertain, please provide your engine serial number to our technical support team for precise verification before placing an order.


