
Mercury 9.9HP EH FourStroke Outboard
Mercury 9.9HP EH FourStroke Outboard (Electric Start, 15" Shaft)
SKU: MERC-9.9-EH
Compact, portable, and built for dependable performance, the Mercury 9.9HP EH FourStroke is an excellent choice for small boats, inflatables, and kicker applications. With electric start and compatibility for both tiller and remote steering (controls sold separately), it’s made for easy operation and smooth, quiet performance on the water.
Key Features
9.9HP inline 2-cylinder FourStroke engine
208cc displacement with Single Overhead Cam (SOHC)
Electric and manual start options
15" short shaft — ideal for shallow transoms
Remote or tiller steering compatible (controls sold separately)
Gear ratio: 2.08:1 for smooth and balanced power delivery
Lightweight at just 84 lbs (38 kg)
Smooth & Reliable Operation
Carbureted fuel system with CDI ignition and electronic spark advance
Water-cooled with thermostat-controlled temperature regulation
Through-prop exhaust for quiet running
Shallow water drive and ratcheting trim positions
Power tilt available on Command Thrust (CT) models
Smart Engineering & Safety
Low oil pressure and over-rev protection
6 amp / 76 watt alternator to power small electronics
Includes 3.2-gallon (12L) remote fuel tank
Additional Specs
RPM Range: 5000–6000
Fuel: 87 octane (up to 10% ethanol)
Oil: Mercury 10W-30 FourStroke Marine Oil
Color: Phantom Black
CARB 3-Star rated for ultra-low emissions