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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 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 |
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Yamaha 250HP 4-Stroke Outboard Motor (2006)
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Shaft Length: 25-inch Ultra-Long Shaft (Standard for deep-V hulls and center consoles)
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Production/Manufacturing Date: 02/06 (February 2006)
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Engine Hours: ~1,000 Hours
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Compression Profile: High and healthy across all cylinders (Tested at 180 PSI)
Rigging & Accessories Toolkit Included
This setup provides everything required to re-power or set up a new hull right away:
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Gauges: Factory-matched Yamaha digital marine instrumentation.
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Wiring Harness: Complete main command-link/analog engine rigging harness.
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Steering System: Full hydraulic steering cylinder, hoses, and helm kit assembly.
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Propeller: Premium high-performance polished stainless steel marine propeller.
Technical Breakdown & Core Performance Specs
| Component Classification | System Feature | Performance Benchmarks & Factory Specs |
| Power Plant & Architecture | Engine Base Configuration | 24-Valve, DOHC 60° V6 (First-generation 3.3L platform) |
| Rated Output | 250 HP @ 5,500 RPM | |
| Operating Power Range | 5,000 – 6,000 RPM | |
| Fuel Management System | Multi-Point Precision Electronic Fuel Injection (EFI) | |
| Gear Ratio / Shifting | 1.75:1 / Mechanical Remote Control (F-N-R) | |
| Charging & Fluids | Alternator Output | High-capacity charging system with built-in regulator |
| Recommended Fuel Quality | Regular Unleaded Gasoline (87–89 Octane minimum) | |
| Recommended Engine Lubricant | Yamalube® 4M Marine Outboard Engine Oil | |
| Dimensions & Structure | Dry Engine Mass | Approximately 562 lbs for the 25" shaft version |
| Trim & Tilt Assembly | Power Trim and Tilt (PTT) with integrated transom brackets |
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Brand: Mercury Marine
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Horsepower: 115 HP
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Model Year: 2016
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Configuration: FourStroke Inline-4
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Condition: Excellent, pre-owned condition
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Ownership: Clean, single-owner history
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Operational Hours: ~650 hours
Comprehensive Technical Specifications
| Feature | Detailed Specifications |
| Engine Architecture | Inline 4-Cylinder, Single Overhead Cam (SOHC), 8-Valve |
| Displacement | 2.1 Liters |
| Full Throttle RPM Range | 5,000 – 6,000 RPM |
| Fuel Induction System | Computer-Controlled Multi-Port Electronic Fuel Injection (EFI) |
| Ignition System | SmartCraft ECM 70 Digital Inductive |
| Alternator Output | 35 Amp with water-cooled regulator |
| Gear Ratio | 2.07:1 |
| Gear Shift | Mechanical (F-N-R) |
| Compression Status | Verified healthy, factory-spec compression across all cylinders |
| Cooling System | Water-cooled with thermostatic control & pressure monitoring |
| Trim/Tilt System | Power Trim and Tilt (PTT) |
| Dry Weight | Approx. 359 lbs |
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