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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Yamaha EF5500D
  • Predator 73255
  • Model EF5500D
    Model EF5500D

    Yamaha 4,500W Gas Generator

    4500W
    Running
    74.1 dB
    Noise
    View details
  • No image
    Model 73255

    Predator 4,000W Gas Generator

    4000W
    Running
    71.3 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationYamaha EF5500DPredator 73255
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 4500 W
4000 W
Starting watts
Winner: Winner: 5500 W
5000 W
Noise (lower limit)
74.1 dB
Winner: Winner: 71.3 dB
Weight
216.1 lbs
Winner: Winner: 110 lbs
Run time @50% load
13.5 h
Winner: Winner: 15.2 h
Run time @25% load
Not available
Not available
Fuel tank
6.9 gal
Not available
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
29.1 x 29 x 31.5 in
23.3 x 18.6 x 19.23
Electrical
Voltage (AC)
120/240V 60 Hz
120/240V
Voltage (DC)
Not available
Not available
GFCI outletsYesNo
Covered outletsNoNo
Automatic Voltage RegulationYesNo
THD
Not available
Not available
Engine
Engine
Yamaha MZ360 OHV 4-stroke
Not available
Alternator
Not available
Not available
Starting system
Recoil
Not available
Warranty
Warranty
3 years
Not available
Power by fuel
GasolineNot availableNot available
Running watts
4500 W
Not available
Starting watts
5500 W
Not available
Running amps (120V)
Not available
Not available
Running amps (240V)
Not available
Not available
Peak amps (120V)
Not available
Not available
Peak amps (240V)
Not available
Not available
Run time @50% load
13.5 h
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
Not available
Compliance
CARB, EPA
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
true
Not available
UPC
Not available
Not available
Core / High-priority specs
Running Watts (Gasoline)
4500
Not available
Starting Watts (Gasoline)
5500
Not available
Runtime @ 50% Load (Gasoline)
13.5
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
Not available
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Not available
Engine Displacement
358
224
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
13.5
Not available
Safety & compliance
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Not available
Included Accessories
Tool kit and wheel kit
Not available
Warranty & identification
Part Number
EF55DZ1
Not available
Additional specs
Summary
The Yamaha EF5500D is a 5500-watt generator designed for emergency backup, recreational use, and DIY projects. It features a 358cc OHV engine, dual voltage output, and offers up to 9 hours of continuous operation at rated load.
The PREDATOR® 5000 Watt Gas-Powered Portable Generator is built with reliability and safety in mind. Powered by a dependable 224cc PREDATOR® gas engine, this compact generator is lightweight and provides power wherever it's needed.
  • Most Powerful
    Yamaha EF5500D
    4500W running
  • Quietest
    Predator 73255
    71.3 dB
  • Longest Runtime
    Predator 73255
    15.2h at 50% load
Where to buy
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Yamaha EF5500D
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Predator 73255
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