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  • Briggs & Stratton 30737
  • Genmax GM10500XiT
  • No image
    Model 30737

    Briggs & Stratton 5,000W Gas Generator

    5000W
    Running
    0 dB
    Noise
    View details
  • Model GM10500XiT
    Model GM10500XiT

    Genmax 7,800W Tri-Fuel Generator

    7800W
    Running
    74 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 30737Genmax GM10500XiT
General
Product type
Generator
Generator
Fuel
Gasoline
Tri-Fuel
InverterNoYes
Parallel capableNoYes
RV readyNoYes
Running watts
5000 W
Winner: Winner: 7800 W
Starting watts
6250 W
Winner: Winner: 10500 W
Noise (lower limit)
0 dB
Winner: Winner: 74 dB
Weight
184 lbs
Winner: Winner: 123.5 lbs
Run time @50% load
Winner: Winner: 12 h
Not available
Run time @25% load
Not available
13.5 h
Fuel tank
7.5 gal
5.8 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 26 x 27
25.2 x 19.8 x 21.3
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available
12
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
≤3% %
Engine
Engine
Briggs & Stratton PowerBuilt™ OHV 4-stroke
312 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil, Electric, Remote
Warranty
Warranty
2 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
5000 W
7800 W
Starting watts
6250 W
10500 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
12 h
Not available
Run time @25% load
Not available
13.5 h
Natural gasNot availableNot available
Running watts
Not available
6250 W
Starting watts
Not available
8500 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
Not available
Not available
Run time @25% load
Not available
Not available
PropaneNot availableNot available
Running watts
Not available
7000 W
Starting watts
Not available
8500 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
Not available
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
true
Compliance
N/A
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
Floating
UPC
11675307370
760790248388
Core / High-priority specs
Running Watts (Gasoline)
5000
7800
Running Watts (Propane)
Not available
7000
Running Watts (Natural Gas)
Not available
6250
Starting Watts (Gasoline)
6250
10500
Starting Watts (Propane)
Not available
8500
Starting Watts (Natural Gas)
Not available
8500
Runtime @ 50% Load (Gasoline)
12
Not available
Runtime @ 25% Load (Gasoline)
Not available
13.5
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI 1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R)
1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton PowerBuilt™ OHV 4-stroke
312 cc OHV 4-stroke
Engine Displacement
389
312
Engine Oil Type
Not available
SAE 10W/30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
13.5
Runtime @ 50% Load (Gasoline)
12
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil and wheel kit
Funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, cover, neutral bonding plug, battery, and wheel kit
Additional specs
Summary
The Briggs & Stratton 30737 is a 5000-watt gasoline generator built for homeowners and job site operators who need extended runtime without constant refueling. With 5000 running watts and 6250 peak watts, this unit can power a refrigerator, multiple lights, and power tools simultaneously, making it suitable for emergency backup or outdoor work. The 7.5-gallon fuel tank delivers 12 hours of runtime at half load, which means a full day of operation before refueling becomes necessary. This is a stationary-duty machine. At 184 pounds, it requires wheels or multiple people to move, so placement matters before startup.
The Genmax GM10500XiT is a 7,800-watt tri-fuel inverter generator delivering whole-house backup power and jobsite capability. Its tri-fuel design runs on gasoline, propane, or natural gas, eliminating fuel sourcing constraints during emergencies. The inverter technology maintains THD at 3% or below, making it safe for laptops, medical devices, and smart TVs.
  • Most Powerful
    Genmax GM10500XiT
    7800W running
  • Quietest
    Genmax GM10500XiT
    74 dB
  • Longest Runtime
    Briggs & Stratton 30737
    12h at 50% load
Where to buy
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Briggs & Stratton 30737
Store links
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Genmax GM10500XiT
Store links
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