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Westinghouse WGen9500DF vs Pulsar G12KBN

Westinghouse WGen9500DF vs Pulsar G12KBN

Compare two 9500W dual-fuel generators: Westinghouse adds 12,500 starting watts and 3-year warranty, Pulsar favors longer 50% runtime.

  • Pulsar G12KBN
  • Westinghouse WGen9500DF

Comparison Overview

The biggest separation is surge power and warranty: the Westinghouse WGen9500DF delivers 12,500 starting watts with a 3-year warranty, while the Pulsar G12KBN tops out at 12,000 starting watts and a 1-year warranty. If you are starting larger motors (well pump, sump pump, older central AC), that extra surge headroom and longer coverage can matter more than it looks on paper.

On steady output, they are essentially tied at 9,500 running watts, and both are traditional (non-inverter) open-frame generators rated around 74 dB, so expect “loud backyard” volume rather than campground-friendly quiet. Weight is also nearly identical at 211 lb for the Westinghouse and 209 lb for the Pulsar, meaning either one is realistically a roll-and-store unit, not something you lift into a truck alone.

Runtime is where the Pulsar’s published numbers stand out at 12 hours at 50% load, while the Westinghouse lists 12 hours at 25% and 8 hours at 50%. In practice, the better fit comes down to whether you value surge/warranty (Westinghouse) or longer mid-load run time (Pulsar).

Key takeaways

  • Both deliver 9,500 running watts and are dual-fuel, non-inverter open-frame generators.
  • Westinghouse WGen9500DF provides 12,500 starting watts and a 3-year warranty.
  • Pulsar G12KBN provides 12,000 starting watts with a 1-year warranty.
  • Both are rated around 74 dB, louder than inverter models for camping.
  • Pulsar lists 12 hours runtime at 50% load, Westinghouse lists 8 hours.

Best use cases

Choose the Westinghouse WGen9500DF if you want a little more breathing room for tough starts and you care about longer ownership support. With 12,500 starting watts and 9,500 running watts, it is a strong match for home backup where loads cycle on and off, like a refrigerator and freezer plus a well pump or sump pump, and possibly a larger HVAC blower or small central AC (depending on your home’s specific starting demands). The 3-year warranty is also a practical advantage if you expect to keep the generator for years and want more protection against early issues. The tradeoff is fuel planning: its published runtime is 8 hours at 50% load, so if you regularly run near mid-load overnight, you may refuel more often.

Choose the Pulsar G12KBN if your priority is longer run time at typical “real use” loads and you are comfortable with a shorter warranty. It matches the Westinghouse at 9,500 running watts and is only slightly lower on surge at 12,000 starting watts, which is still plenty for many home backup setups and most job site tools. Its published 12-hour runtime at 50% load can be appealing for longer stretches powering essentials, or for workdays where you want fewer refueling stops. The tradeoffs are the 1-year warranty and slightly less surge headroom for stubborn motor starts.

For RV use and camping, neither is ideal because both are non-inverter units around 74 dB, so they are better suited to home backup and job site power than quiet, close-quarters settings.

Verdict & recommendation

If your priority is starting heavier loads and having more long-term peace of mind, the Westinghouse WGen9500DF is the safer pick on paper thanks to 12,500 starting watts and a 3-year warranty. If your priority is stretching run time at a moderate load with fewer refueling breaks, the Pulsar G12KBN’s published 12 hours at 50% load is a compelling practical advantage.

Because both deliver 9,500 running watts, weigh about 210 lb, and sit around 74 dB, the decision is less about raw capacity and more about how you use it: surge and warranty versus mid-load runtime. Pick the one that best matches your typical loads and how long you need to run between refuels.

Last updated February 24, 2026

  • Model G12KBN
    Model G12KBN

    Pulsar 9,500W Dual-Fuel Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model WGen9500DF
    Model WGen9500DF

    Westinghouse 9,500W Dual-Fuel 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
SpecificationPulsar G12KBNWestinghouse WGen9500DF
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 9500 W
Winner: Winner: 9500 W
Starting watts
12000 W
Winner: Winner: 12500 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
Winner: Winner: 209 lbs
211 lbs
Run time @50% load
Winner: Winner: 12 h
8 h
Run time @25% load
Not available
12 h
Fuel tank
8 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
28.5 x 21.8 x 22.2
27.2 x 26.1 x 26.5
Electrical
Voltage (AC)
120/240V 60 Hz
120/240V 60 Hz
Voltage (DC)
12
Not available
GFCI outletsNoYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
457 cc Ducar OHV 4-stroke
Westinghouse OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric, Remote
Warranty
Warranty
1 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
9500 W
9500 W
Starting watts
12000 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
12 h
8 h
Run time @25% load
Not available
12 h
PropaneNot availableNot available
Running watts
8550 W
8500 W
Starting watts
Not available
11200 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
5 h
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
CARB, EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
true
UPC
814726024598
853544008298
Core / High-priority specs
Running Watts (Gasoline)
9500
9500
Running Watts (Propane)
8550
8500
Starting Watts (Gasoline)
12000
12500
Starting Watts (Propane)
Not available
11200
Runtime @ 50% Load (Gasoline)
12
8
Runtime @ 50% Load (Propane)
5
Not available
Runtime @ 25% Load (Gasoline)
Not available
12
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
2x 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
Ducar OHV 4-stroke
OHV 4-stroke, cast iron sleeve
Engine Displacement
457
457
Cylinder Sleeve
Not available
Cast iron sleeve
Engine Oil Type
10W30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
12
Runtime @ 50% Load (Gasoline)
12
8
Runtime @ 50% Load (Propane)
5
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Included equipment
Mobility Components
Not available
Yes
Included Accessories
Funnel, tool kit, propane hose, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit
Warranty & identification
Residential Warranty
Not available
3
Commercial Warranty
1
3
Part Number
G12KBN-SG
Not available
Additional specs
Summary
The Pulsar G12KBN is a 12,000-watt dual-fuel portable generator designed for versatility and reliability, offering both gasoline and propane fuel options, making it suitable for various power needs.
The Westinghouse WGen9500DF is a dual fuel portable generator capable of producing up to 12,500 peak watts and 9,500 running watts on gasoline, and 11,200 peak watts and 8,500 running watts on propane. It features a 457cc 4-Stroke OHV engine, push-button electric start with remote key fob, and a VFT Data Center displaying real-time information. Designed for home backup, job sites, or recreational use, it offers up to 12 hours of run time on a 6.6-gallon fuel tank.
  • Most Powerful
    Pulsar G12KBN
    9500W running
  • Quietest
    Pulsar G12KBN
    74 dB
  • Longest Runtime
    Pulsar G12KBN
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
Pulsar G12KBN
Store links
No links yet.
Westinghouse WGen9500DF
Store links
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