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  • Briggs & Stratton 30742
  • Powermate PM4500E
  • Model 30742
    Model 30742

    Briggs & Stratton 8,000W Gas Generator

    8000W
    Running
    0 dB
    Noise
    View details
  • Model PM4500E
    Model PM4500E

    Powermate 3,600W Gas Generator

    3600W
    Running
    0 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 30742Powermate PM4500E
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 8000 W
3600 W
Starting watts
Winner: Winner: 10000 W
4500 W
Noise (lower limit)
0 dB
0 dB
Weight
246 lbs
Winner: Winner: 114 lbs
Run time @50% load
9 h
Winner: Winner: 14 h
Run time @25% load
Not available
20 h
Fuel tank
7.5 gal
5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
28.4 x 30.5 x 29.1
26.3 x 22.9 x 21.6
Electrical
Voltage (AC)
120/240
120
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
Briggs & Stratton OHV 4-stroke
224 cc Generac OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
8000 W
3600 W
Starting watts
10000 W
4500 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
14 h
Run time @25% load
Not available
20 h
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
EPA
EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Bonded to frame
Bonded to frame.
UPC
11675307424
696471080353
Core / High-priority specs
Running Watts (Gasoline)
8000
3600
Starting Watts (Gasoline)
10000
4500
Runtime @ 50% Load (Gasoline)
9
14
Runtime @ 25% Load (Gasoline)
Not available
20
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
224
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
20
Runtime @ 50% Load (Gasoline)
9
14
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric
Not available
Included Accessories
Oil, battery, and wheel kit
Oil, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
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 Powermate PM4500E is a portable generator offering 4500 starting watts and 3600 running watts, featuring an electric start and a 224cc Generac OHV engine, suitable for various applications.
  • Most Powerful
    Briggs & Stratton 30742
    8000W running
  • Quietest
    dB
  • Longest Runtime
    Powermate PM4500E
    14h at 50% load
Where to buy
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Briggs & Stratton 30742
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Powermate PM4500E
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