Skip to content

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.

  • Briggs & Stratton 30742
  • Sportsman GEN4000-SS
  • Model 30742
    Model 30742

    Briggs & Stratton 8,000W Gas Generator

    8000W
    Running
    0 dB
    Noise
    View details
  • Model GEN4000-SS
    Model GEN4000-SS

    Sportsman 3,500W Gas Generator

    3500W
    Running
    69 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 30742Sportsman GEN4000-SS
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
Winner: Winner: 8000 W
3500 W
Starting watts
Winner: Winner: 10000 W
4000 W
Noise (lower limit)
0 dB
Winner: Winner: 69 dB
Weight
246 lbs
Winner: Winner: 91 lbs
Run time @50% load
9 h
Winner: Winner: 10 h
Run time @25% load
Not available
Not available
Fuel tank
7.5 gal
3.9 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
28.4 x 30.5 x 29.1
23 x 19.5 x 17.5
Electrical
Voltage (AC)
120/240
120
Voltage (DC)
Not available
12
GFCI outletsYesNo
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
Briggs & Stratton OHV 4-stroke
212 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil
Warranty
Warranty
3 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
8000 W
3500 W
Starting watts
10000 W
4000 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
10 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
Not available
UPC
11675307424
27077082470
Core / High-priority specs
Running Watts (Gasoline)
8000
3500
Starting Watts (Gasoline)
10000
4000
Runtime @ 50% Load (Gasoline)
9
10
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)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
212
Engine Oil Type
Not available
SAE10W-30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
9
10
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Starting Components
Recoil, Electric
Recoil
Included Accessories
Oil, battery, and wheel kit
Funnel, tool kit, and battery charging cables
Warranty & identification
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 Sportsman GEN4000-SS is a gasoline-powered generator offering 4000 surge watts and 3500 running watts, suitable for running RVs, household appliances, and power tools.
  • Most Powerful
    Briggs & Stratton 30742
    8000W running
  • Quietest
    Sportsman GEN4000-SS
    69 dB
  • Longest Runtime
    Sportsman GEN4000-SS
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
Briggs & Stratton 30742
Store links
No links yet.
Sportsman GEN4000-SS
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.