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2025 Mercury 9.9 HP 9.9MLH-CT EFI Outboard Motor
The affordable, portable Mercury 9.9 HP Outboard motor with Command Thrust delivers power, thrust, and control that wider, heavier boats need. A larger prop increases control and a taller gear case puts the propeller deeper below turbulent water for improved power. The Mercury 9.9 outboard engine is the right choice for sailboat and kicker applications. The 96 lb. 9.9 HP Mercury Outboard Motor model 9.9MLH-CT is an affordable outboard equipped with a 20 inch long shaft and manual start, Mercury's 3 year factory warranty, auto ratchet tilt, and multi function tiller control.
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2025 Mercury 9.9 HP 9.9MLH-CT EFI Outboard Motor is backordered and will ship as soon as it is back in stock.
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SHAFT LENGTH GUIDELINES
Features
- Compact and Lightweight
- Designed for Heavy Applications
- Command Thrust Lower Unit (2.42:1 Gear Ratio)
- High Thrust Propeller
- Oversized Anti-Ventilation Plate
- Digital CD Ignition with Spark Advance
- High Grade Marine Alloy Construction
- Stainless Steel Water Pump Housing
- Zinc Coated Water Passages
- Rated for Saltwater Use
- Sacrificial Zinc Anodes and Trim Tab
- Tiller Integrated F-N-R Gear Shifting
- Adjustable Steering Tension Control
- Twist-Grip Throttle with Tension Control
- Thermostat Controlled Water Cooling
- Auto Ratchet Trim System (5 positions)
- Shallow Water Drive
- Quiet Through-Propeller-Hub Exhaust
- 3.2 Gallon Fuel Tank and Fuel Line
- Start-In-Gear Protection
- Low Oil Pressure Warning Indicator
- ESG Over-Rev Protection
- Safety Lanyard Stop Switch
- Owner's Manual
- Mercury Marine 3-Year Warranty
specifications
| MODEL | 1A10251LK |
|---|---|
| MODEL YEAR | 2025 |
| SKU | 9.9MLH-CT-25 |
| WEIGHT | 96.0 lb |
| MANUFACTURER | Mercury |
| COUNTRY OF MANUFACTURE | Japan |
| HORSEPOWER | 9.9hp |
| SHAFT LENGTH | 20" (Long) |
| STEERING | Tiller |
| STARTING | Manual |
| TRIM & TILT | Manual |
| FUEL DELIVERY | EFI |
| FUEL TANK | External |
| CYLINDER(S) | 2 |
| DISPLACEMENT | 208 cc (12.8 cubic inches) |
| BORE AND STROKE | 55 x 44 mm (2.16 x 1.73 inches) |
| FULL THROTTLE RPM RANGE | 5000-6000 |
| IGNITION SYSTEM | Digital CD Ignition w/Electronic Spark Advance |
| INDUCTION SCAVENGING | SOHC |
| VALVES PER CYLINDER | 2 |
| FUEL TYPE | 87 Octane (up to 10% ethanol content) |
| FUEL TANK / FUEL LINE | 3.2 Gal. Fuel Tank + Quick Connect Fuel Line |
| OIL TYPE | SAE 10W-30 (Mercury 4-Stroke Outboard Oil) |
| OIL CAPACITY | 27 fl. Oz. (800 ml) |
| LUBRICATION | Trochoid Pump |
| ALTERNATOR | Optional 12V 76W 6A (installation required) |
| COOLING SYSTEM | Water-Cooled, Thermostatically Controlled |
| SALTWATER RATED | Yes |
| GEAR RATIO | 2.42:1 Command Thrust Gear Case |
| GEAR SHIFT | Forward-Neutral-Reverse (shift in tiller handle) |
| PROPELLER | Command Thrust 4-Blade High Thrust Aluminum Propeller |
In the Box
- Fuel Tank (3.2 gallon)
- Quick Connect Fuel Line
- Mercury 3-Year Warranty
- 4-Blade Aluminum Prop
- Mercury 5-Stroke Oil
- Owner's Manual & Tool Kit
Shaft Length Guidelines
