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Mercury 9.9HP Command Thrust FourStroke


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Built to deliver the type of power, thrust, and control that wider, heavier boats require. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.

NOTE: Brisbane Marine does not ship new engines in boxes. New engines must be collected from Brisbane Marine.

Price range: $3,900.00 through $4,550.00

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Mercury 9.9HP Command Thrust FourStroke

Reliable Power for Smaller Boats

The Mercury 9.9HP Command Thrust FourStroke outboard engine delivers dependable performance, making it an excellent choice for smaller boats, pontoons, tenders, and fishing skiffs. Designed for boaters who want a balanced combination of power, efficiency, and easy handling, this engine brings Mercury’s trusted engineering to every outing. Whether you’re cruising calm waters or heading into light chop, the Command Thrust FourStroke keeps you moving with confidence.

Commanding Thrust for Enhanced Performance

First and foremost, the Command Thrust design provides increased torque and improved low-end power, giving you better acceleration and stronger pulling ability. As a result, you enjoy confident planing and quicker responsiveness when you need it most. This makes launching, retrieving, and manoeuvring your boat easier—especially with heavier loads or additional gear on board.

Smooth FourStroke Efficiency

Moreover, the FourStroke technology offers quiet, fuel-efficient operation with minimal vibration and emissions. Unlike older two-stroke engines, the Mercury 9.9HP FourStroke delivers a refined feel that enhances comfort on the water. Consequently, every trip feels smoother and more enjoyable, while fuel savings help extend your time out on the lake or river.

Easy Starting and Dependable Operation

In addition to efficient performance, this engine is engineered for reliable starting and consistent operation. With advanced combustion technology and thoughtful design, it responds well in a variety of temperatures and conditions. Meanwhile, its maintenance-friendly design makes routine servicing straightforward—giving you peace of mind and more time boating.

Built to Last in the Marine Environment

Furthermore, Mercury constructs the Command Thrust FourStroke with durable materials and corrosion-resistant finishes to withstand harsh marine environments. From the rugged lower unit to the solid mid-section, every component contributes to long-lasting performance season after season.

A Versatile Choice for Adventurous Boaters

Ultimately, the Mercury 9.9HP Command Thrust FourStroke combines dependable thrust, efficient FourStroke technology, and durable design in a compact package. Therefore, whether you’re fishing, cruising, or simply enjoying a day on the water, this outboard delivers trustworthy performance you can count on each time you head out.


SPECIFICATIONS

HP / KW 9.9 / 7.3
ENGINE TYPE Inline 2
DISPLACEMENT (CID/CC) 12.8 / 208
FULL THROTTLE RPM 5000 – 6000
FUEL INDUCTION SYSTEM 2-valves per cylinder, single overhead cam (SOHC)
RECOMMENDED FUEL 87 octane compatible (up to 10% ethanol)
RECOMMENDED OIL Mercury FourStroke Oil 10W-30
ENGINE PROTECTION OPERATOR WARNING SYSTEM Over-rev
Low oil pressure
STARTING Manual

Electric

STEERING Tiller
SHAFT LENGTH 20″ / 508mm

25″ / 635mm

GEARCASE RATIO 2.42:1
DRY WEIGHT 44kg
CARB STAR RATING 3
BORE AND STROKE 2.16 x 1.73″ / 55 x 44mm
IGNITION CDI w/ electronic spark advance
FUEL SYSTEM Carbureted
COOLING SYSTEM Water-cooled with thermostat
GEAR SHIFT F-N-R
GEARCASE OPTIONS Standard
TRIM POSITIONS Ratcheting

Power Trim

EXHAUST SYSTEM Through Prop
SHALLOW WATER DRIVE Yes
SHALLOW WATER TRIM RANGE (DEGREES) 16
INTEGRATED FUEL TANK (L / gal) 12 / 3.2
OPTIONAL FUEL TANK (L / gal) 12 / 3.2
SKU: N/A Category:
Weight N/A
Dimensions N/A
Trim System

Power Trim, Manual (Ratcheting)

Shaft Length

20", 25"

Brand

Mercury Outboard Engines

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