All GeneratorsDealsCompareMy PicksGenerator Finder
All GeneratorsDealsCompareMy PicksGenerator Finder
  • Guides
  • Blog
  • FAQ
  • Rankings

Helping you find the right generator for your needs with objective specs and clear comparisons.

Categories

  • Quiet Generators
  • Inverter Generators
  • Dual-Fuel
  • Home Backup
  • Portable
  • All Brands

Resources

  • Rankings
  • Compare Generators
  • Generator Finder
  • Deals
  • Buying Guides
  • Blog
  • FAQ
  • About Us

Legal

  • Terms of Service
  • Privacy Policy
  • DMCA
  • Disclosures

Disclosure

RightGenerator is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no cost to you.

© 2026 RightGenerator. All rights reserved.

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.

  • Generac #7971 GP9200E
  • Westinghouse WGen9500
  • Model #7971 GP9200E
    Model #7971 GP9200E

    Generac 9,200W Gas Generator

    9200W
    Running
    0 dB
    Noise
    View details
  • Model WGen9500
    Model WGen9500

    Westinghouse 9,500W Gas Generator

    9500W
    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
SpecificationGenerac #7971 GP9200EWestinghouse WGen9500
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
9200 W
Winner: Winner: 9500 W
Starting watts
11250 W
Winner: Winner: 12500 W
Noise (lower limit)
0 dB
Winner: Winner: 74 dB
Weight
213 lbs
Winner: Winner: 208 lbs
Run time @50% load
Winner: Winner: 8.5 h
8 h
Run time @25% load
Not available—
12 h
Fuel tank
7.9 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
27.2 x 27 x 26.5
27.2 x 26.5 x 26.5
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
Not available—
5
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
23 %
Engine
Engine
459 cc OHV 4-stroke
457 cc Westinghouse OHV 4-stroke, cast iron sleeve
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
9200 W
9500 W
Starting watts
11250 W
12500 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
8.5 h
8 h
Run time @25% load
Not available—
12 h
Other
Data center
Not available—
Not available—
Indicators
false
false
Compliance
CARB, EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Bonded to frame
true
UPC
696471084443
853544008199
Core / High-priority specs
Running Watts (Gasoline)
9200
9500
Starting Watts (Gasoline)
11250
12500
Runtime @ 50% Load (Gasoline)
8.5
8
Runtime @ 25% Load (Gasoline)
Not available—
12
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Westinghouse OHV 4-stroke, cast iron sleeve
Engine Displacement
459
457
Cylinder Sleeve
Not available—
cast iron sleeve
Engine Oil Type
10W-30 / SAE 30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available—
12
Runtime @ 50% Load (Gasoline)
8.5
8
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Starting Components
Not available—
Recoil, Electric, Remote
Included Accessories
Oil, funnel, extension cord, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The Generac GP9200E is a 9,200-watt gasoline generator built for whole-house backup and job site power. Its 11,250 starting watts handle the inrush current that air conditioners, well pumps, and large power tools demand at startup. A 7.9-gallon fuel tank, dual starting methods, automatic voltage regulation, and GFCI protection across all outlets signal a unit engineered for extended, serious use during grid outages or active work. Generac's reputation backs this workhorse.
The Westinghouse WGen9500DF is a dual fuel portable generator that delivers up to 12,500 peak watts and 9,500 running watts, suitable for home backup and portable power needs.
  • Most Powerful
    Westinghouse WGen9500
    9500W running
  • Quietest
    Westinghouse WGen9500
    74 dB
  • Longest Runtime
    Generac #7971 GP9200E
    8.5h at 50% load
Where to buy
Prices can change. We update these automatically.
Generac #7971 GP9200E
Store links
No links yet.
Westinghouse WGen9500
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.