2021 Mercury 4 HP MLH Outboard Motor

Perfect choice for small fishing boats, small to medium sized inflatables and sailboats. The 58 lb. Mercury 4 HP outboard engine model 4MLH is compact, lightweight, and comes equipped with the 20 inch long shaft, manual start, tiller steering, and full forward-neutral-reverse gears and the twist grip throttle. Mercury 4hp models feature an integrated fuel tank for true portability. External tank connection is standard which makes adding an external fuel tank and line quick and easy.
Along with our discounted outboard motor prices we offer free shipping and the Mercury 3-year warranty!
 
Additional information
Horsepower
4 HP
Shaft Length
20″ (Long)
Starter Type
Manual
Tilt & Trim
Manual
 
FEATURES
Compact and Lightweight
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
Forward-Neutral-Reverse Gear Shift
Adjustable Steering Tension Control
Forward Mounted Gear Shift Selector
Twist-Grip Throttle with Tension Control
Integrated Carry Handle
Thermostat Controlled Water Cooling
Shallow Water Drive; 6 Trim Positions
Quiet Through-Propeller-Hub Exhaust
1.15 Liter (.30 Gallon) Integral Fuel Tank
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
4MLH
MODEL YEAR
2021
SKU
4MLH-21
WEIGHT
58.0 lb
MANUFACTURER
Mercury
COUNTRY OF MANUFACTURE
Japan
HORSEPOWER
4hp
SHAFT LENGTH
20″ (Long)
STEERING
Tiller
STARTING
Manual
TRIM & TILT
Manual
FUEL DELIVERY
Carburetor
FUEL TANK
Internal
CYLINDER(S)
1
DISPLACEMENT
7.5/123
BORE AND STROKE
2.32 x 1.77
FULL THROTTLE RPM RANGE
4500-5500
IGNITION SYSTEM
CDI
INDUCTION SCAVENGING
OHV
VALVES PER CYLINDER
2
FUEL TYPE
87 Octane (up to 10% ethanol content)
FUEL TANK / FUEL LINE
0.3 US Gallon (1.15 liter)
OIL TYPE
SAE 10W-30 (Mercury 4-Stroke Outboard Oil)
OIL CAPACITY
15 fl. Oz. (450 ml)
LUBRICATION
Pressurized wet sump
ALTERNATOR
Optional 12V 50W 4A (installation required)
COOLING SYSTEM
Water-cooled w/thermostat
SALTWATER RATED
Yes
GEAR RATIO
2.15:1
GEAR SHIFT
Forward-Neutral-Reverse (forward mounted shift lever)
PROPELLER
7.7″ Diameter X 7.0″ Pitch 3-Blade Aluminum
 
IN THE BOX
Integral Fuel Tank (0.3 gal)
Owner’s Manual
Mercury 3-Year Warranty
Aluminum Propeller
Mercury 4-Stroke Oil
Tool Kit