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Compare Generators Side-by-Side

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

  • Genmax GM10500iETC
  • Predator 71386
  • Model GM10500iETC
    Model GM10500iETC

    Genmax 8,500W Tri-Fuel Generator

    8500W
    Running
    64 dB
    Noise
    View details
  • Model 71386
    Model 71386

    Predator 10,000W Tri-Fuel Generator

    10000W
    Running
    78.5 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
SpecificationGenmax GM10500iETCPredator 71386
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
8500 W
Winner: Winner: 10000 W
Starting watts
10500 W
Winner: Winner: 13000 W
Noise (lower limit)
Winner: Winner: 64 dB
78.5 dB
Weight
244.7 lbs
Winner: Winner: 226 lbs
Run time @50% load
Not available—
Winner: Winner: 12.1 h
Run time @25% load
14 h
Not available—
Fuel tank
6.9 gal
Not available—
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
30.9 x 22.6 x 29.3
30.25 x 29.2 x 27.2
Electrical
Voltage (AC)
120/240
120/240V
Voltage (DC)
12
Not available—
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
≤3% %
Not available—
Engine
Engine
458 cc OHV 4-stroke
Not available—
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Not available—
Warranty
Warranty
1 years
Not available—
Power by fuel
GasolineNot available—Not available—
Running watts
8500 W
Not available—
Starting watts
10500 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
Not available—
Not available—
Run time @25% load
14 h
Not available—
Natural gasNot available—Not available—
Running watts
6800 W
Not available—
Starting watts
8400 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
Not available—
Not available—
Run time @25% load
Not available—
Not available—
PropaneNot available—Not available—
Running watts
8000 W
Not available—
Starting watts
9500 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
Not available—
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
Not available—
Compliance
CARB, EPA, ANSI/PGMA G300-2023
Not available—
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
Floating
Not available—
UPC
742332650842
Not available—
Core / High-priority specs
Running Watts (Gasoline)
8500
Not available—
Running Watts (Propane)
8000
Not available—
Running Watts (Natural Gas)
6800
Not available—
Starting Watts (Gasoline)
10500
Not available—
Starting Watts (Propane)
9500
Not available—
Starting Watts (Natural Gas)
8400
Not available—
Runtime @ 25% Load (Gasoline)
14
Not available—
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Not available—
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
458 cc OHV 4-stroke
Not available—
Engine Displacement
458
458
Engine Oil Type
SAE 10W/30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
14
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric, Remote
Not available—
Included Accessories
Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, RV adapter, cover, neutral bonding plug, and battery
Not available—
Warranty & identification
Residential Warranty
1
Not available—
Commercial Warranty
1
Not available—
Additional specs
Summary
The Genmax GM10500iETC is an 8500-watt tri-fuel inverter generator that runs on gasoline, propane, or natural gas. This wattage handles mid-to-large loads like air conditioning units, power tools, and multiple household appliances simultaneously. The tri-fuel flexibility means users can switch fuels based on availability and cost, a significant advantage for both emergency backup and remote work sites.
The PREDATOR 13,000 Watt Tri-Fuel Portable Generator offers versatile power options, running on gasoline, propane, or natural gas. It features a remote start capability and CO SECURE Technology for enhanced safety, making it suitable for emergencies, jobsites, and home backup.
  • Most Powerful
    Predator 71386
    10000W running
  • Quietest
    Genmax GM10500iETC
    64 dB
  • Longest Runtime
    Predator 71386
    12.1h at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM10500iETC
Store links
No links yet.
Predator 71386
Store links
No links yet.
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