The Mercury 9.9 HP Outboard motor with 25 inch extra long shaft and 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 9.9 HP Mercury Outboard Motor model: 9.9MXLH-CT is an affordable outboard equipped with an extra long 25 inch shaft and manual start, Mercury’s 3 year factory warranty, auto ratchet trim, and multi function tiller control.
Additional information
| Horsepower | 9.9 HP |
|---|---|
| Shaft Length | 25″ (Extra Long) |
| Starter Type | Manual |
| Tilt & Trim | Manual |
FEATURES
- Compact and Lightweight
- Designed for Heavy Applications
- CommandThrust 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
SPECS
| MODEL | 9.9MXLH-CT |
|---|---|
| MODEL YEAR | 2021 |
| SKU | 9.9MXLH-CT-21 |
| WEIGHT | 99.0 lb |
| MANUFACTURER | Mercury |
| COUNTRY OF MANUFACTURE | Japan |
| HORSEPOWER | 9.9hp |
| SHAFT LENGTH | 25″ (Extra Long) |
| STEERING | Tiller |
| STARTING | Manual |
| TRIM & TILT | Manual |
| FUEL DELIVERY | Carburetor |
| 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 CommandThrust Gearcase |
| GEAR SHIFT | Forward-Neutral-Reverse (shift in tiller handle) |
| PROPELLER | CommandThrust 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 4-Stroke Oil
- Owner’s Manual & Tool Kit

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