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Get the Right Component at the Competitive Price for the Performance of Your Outboard.
Access a curated inventory of high-performance marine components designed for maximum durability. From precision-pitched propellers to critical ignition systems, every part is Hub-vetted to ensure your outboard operates at peak factory specifications.
Get your boat back on the water with this high-quality, complete replacement lower unit assembly. Specially engineered to fit Yamaha 25HP, 30HP, and 40HP 2-Stroke outboard motors, this gearbox unit has been fully inspected, pressure-tested, and verified for smooth shifting mechanical performance. Whether you are replacing a cracked casting, stripped gears, or a bent propshaft, this ready-to-install assembly offers an affordable, reliable solution to restore your marine engine's performance.
Key Specifications Table
| Attribute | Value |
| Brand | Yamaha Marine (Aftermarket/OEM Replacement) |
| Component | Complete Lower Unit / Gearbox Assembly |
| Engine Compatibility | 25HP, 30HP, & 40HP |
| Engine Cycle | 2-Stroke |
| Condition | Fully Inspected & Functional |
| Included Components | Housing, Driveshaft, Propshaft, Internal Gears & Water Pump Base |
| Shifting | Smooth Forward - Neutral - Reverse |
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Get your hands on one of the most legendary direct-injection two-strokes ever built! This 2016 Mercury Racing 300XS OptiMax features the powerful 3.2L Stroker block, revered for its insane torque-to-weight ratio and aggressive power delivery.
With only 148 original hours, this motor is incredibly clean inside and out. It comes equipped with a heavy-duty Torque Master gearbox featuring a fat shaft (1-1/4") prop shaft to handle intense high-performance loads. This is a complete turn-key package that includes the factory wiring looms, smart gauge, and the external oil tank (packaged securely on the shipping pallet).
Key Specifications
| Specification | Details |
| Brand & Model | Mercury Racing 300XS OptiMax |
| Year | 2016 |
| Displacement | 3.2L Stroker V6 |
| Gearcase | Heavy-Duty Torque Master Gearbox |
| Prop Shaft | Heavy-Duty "Fat Shaft" (1-1/4") |
| Engine Hours | Only 148 Hours |
| Included Accessories | Wiring looms, digital gauge, and external oil tank |
| Shipping Logistics | Fully palleted and ready for secure freight shipping |
Expertly inspected, crated, and globally shipped. Your destination for high-performance outboards and tournament-ready vessels. Uncompromising quality for the modern mariner.
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