Mercury 2017 Mercury 9.9 HP 9.9EXLH-CT Outboard Motor

This 2017-built 9.9EXLH-CT combines a 25-inch extra-long shaft, electric start, and Mercury's CommandThrust gearcase for boats whose transoms sit above the standard mounting line, not for a typical low-transom hull you'd see on a small jon boat. Why shaft length is the first spec to check Buying by horsepower alone is a common mistake with outboards this size; shaft length is what determines whether the propeller sits at the right depth. The extra-long 25-inch shaft here is meant for taller transoms, so measure first rather than assuming fit from the boat category or brand name. What CommandThrust adds With a 2.42:1 ratio, the larger four-blade prop favors thrust over velocity, trading some top speed for the low-speed pushing power that heavier hulls need when getting up to plane or holding position against current and wind. Operating it Throttle and shift sit on the tiller alongside steering, typical for a kicker or auxiliary role rather than a primary high-speed motor meant to cover distance quickly. Tilt here is manual and ratcheting rather than power-operated, keeping the setup simpler and lighter overall, with fewer parts that can fail out on the water far from a dock. Common questions Does it have power tilt? No, tilt is manual and ratcheting on this model. Is it rated for saltwater? Yes. What propeller ships with it? A CommandThrust four-blade aluminum propeller. Specifications Model 9.9EXLH-CT Model Year 2017 SKU 9.9EXLH-CT-17 Weight 106.0000 Manufacturer Mercury Country of Manufacture Japan Horsepower 9.9hp Shaft Length 25″ (Extra Long) Steering Tiller Starting Electric 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 12V 76W 6A (standard on electric start models) 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 Command Thrust 4-Blade High Thrust Aluminum Propeller Internal Battery No