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  • Briggs & Stratton 30742
  • WEN GN9500X
  • Model 30742
    Model 30742

    Briggs & Stratton 8,000W Gas Generator

    8000W
    Running
    0 dB
    Noise
    View details
  • Model GN9500X
    Model GN9500X

    WEN 7,500W Gas Generator

    7500W
    Running
    72 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
SpecificationBriggs & Stratton 30742WEN GN9500X
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
Winner: Winner: 8000 W
7500 W
Starting watts
Winner: Winner: 10000 W
9500 W
Noise (lower limit)
0 dB
Winner: Winner: 72 dB
Weight
246 lbs
Winner: Winner: 194 lbs
Run time @50% load
Winner: Winner: 9 h
7.5 h
Run time @25% load
Not available
Not available
Fuel tank
7.5 gal
6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
28.4 x 30.5 x 29.1
27.3 x 20.8 x 22.2
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available
12
GFCI outletsYesNo
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
Briggs & Stratton OHV 4-stroke
420 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric, Remote
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
8000 W
7500 W
Starting watts
10000 W
9500 W
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
9 h
7.5 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
EPA
EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Bonded to frame
Floating
UPC
11675307424
44459950011
Core / High-priority specs
Running Watts (Gasoline)
8000
7500
Starting Watts (Gasoline)
10000
9500
Runtime @ 50% Load (Gasoline)
9
7.5
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
420
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
9
7.5
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Not available
Yes
Starting Components
Recoil, Electric
Recoil, Electric, Remote
Included Accessories
Oil, battery, and wheel kit
Tool kit, key fob, battery, and wheel kit
Warranty & identification
Residential Warranty
Not available
2
Commercial Warranty
3
Not available
Additional specs
Summary
The Briggs & Stratton 30742 is an 8,000-watt gasoline generator built for job sites and home backup power. Its 10,000-watt peak output handles motor startup surges, while the dual-voltage 120/240V configuration powers both household circuits and heavy equipment like air compressors or welders.
The WEN GN9500X is a 9500-watt portable generator equipped with a 420cc 4-stroke engine, remote electric start, and a CO shutdown sensor, designed to provide reliable power during outages and for RV use.
  • Most Powerful
    Briggs & Stratton 30742
    8000W running
  • Quietest
    WEN GN9500X
    72 dB
  • Longest Runtime
    Briggs & Stratton 30742
    9h at 50% load
Where to buy
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Briggs & Stratton 30742
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WEN GN9500X
Store links
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