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DuroMax XP12000HX vs Pulsar G12KBN

DuroMax XP12000HX vs Pulsar G12KBN

Both deliver 9500 running watts dual-fuel, but DuroMax adds a 5-year warranty while Pulsar is lighter at 209 lb.

  • DuroMax XP12000HX
  • Pulsar G12KBN

Comparison Overview

These two are unusually close on core output: both are dual-fuel, non-inverter generators rated at 9500 running watts and 12000 starting watts, with a listed 74 dB noise level. That means either can handle serious home-backup loads (like a well pump plus fridge and lights) or power-hungry tools, but neither is the quiet, clean-power style people typically prefer for sensitive electronics or campground use.

The biggest real-world separator is ownership and portability. The DuroMax XP12000HX comes with a 5-year warranty, which matters if you expect frequent use or want longer-term peace of mind. The Pulsar G12KBN is lighter at 209 lb versus 230 lb, which is noticeable when rolling it over gravel or lifting a wheel over a threshold.

Runtime data is mixed: DuroMax lists 19 hours at 25% load and 9 hours at 50%, while Pulsar lists 12 hours at 50% (no 25% figure provided). If you value longer warranty coverage, DuroMax tends to fit better, while Pulsar suits buyers prioritizing easier handling and potentially longer mid-load runtime.

Key takeaways

  • Both deliver 9500 running watts and 12000 starting watts on dual fuel.
  • Both list 74 dB noise, better for home backup than quiet camping.
  • DuroMax XP12000HX includes a 5-year warranty for longer ownership confidence.
  • Pulsar G12KBN weighs 209 lb, lighter than DuroMax at 230 lb.
  • DuroMax lists 19 hours at 25% load, Pulsar lists 12 hours at 50%.

Best use cases

Choose the DuroMax XP12000HX if you want the most confidence for long-term ownership. The 5-year warranty is a big deal for a high-output, open-frame style generator that may see regular use during storm season, on a property, or as a standby-style backup you roll out multiple times a year. With 9500 running watts and 12000 starting watts, it is well suited to starting motor loads (like a well pump or sump pump) while still keeping essentials running. DuroMax also publishes runtime at lighter load, 19 hours at 25%, which is helpful if your plan is overnight essentials rather than heavy tool use. The tradeoff is weight at 230 lb, so it is less friendly if you frequently move it alone.

Choose the Pulsar G12KBN if portability and simpler handling matter more than long warranty coverage. At 209 lb, it is still heavy, but it is meaningfully easier to maneuver in a garage, shed, or job site compared with a 230 lb unit. Pulsar lists 12 hours at 50% load, which can be attractive if your typical use is a steady mid-level draw (for example, running a few circuits during an outage or powering tools in bursts). The main compromise is the 1-year warranty, which may feel short if you want a generator you can lean on for many seasons.

For RV and camping: both are 74 dB and non-inverter, so they are generally better for home backup or work use than quiet-hours campgrounds or sensitive electronics without extra precautions.

Verdict & recommendation

If your priority is longer-term peace of mind and you expect to use the generator regularly, the DuroMax XP12000HX is easier to justify thanks to its 5-year warranty and clearly stated 19 hours at 25% load. If your priority is moving the generator more often, the Pulsar G12KBN’s 209 lb weight can make day-to-day handling less of a chore, and its listed 12 hours at 50% load may fit steady mid-load use.

Because both deliver 9500 running watts and 12000 starting watts on dual fuel with similar 74 dB noise, the decision mostly comes down to warranty confidence versus portability and the runtime figure that best matches how you actually use power.

Last updated February 22, 2026

  • Model XP12000HX
    Model XP12000HX

    DuroMax 9,500W Dual-Fuel Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model G12KBN
    Model G12KBN

    Pulsar 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
SpecificationDuroMax XP12000HXPulsar G12KBN
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
Winner: Winner: 9500 W
Winner: Winner: 9500 W
Starting watts
Winner: Winner: 12000 W
Winner: Winner: 12000 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
230 lbs
Winner: Winner: 209 lbs
Run time @50% load
9 h
Winner: Winner: 12 h
Run time @25% load
19 h
Not available
Fuel tank
8.3 gal
8 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26
28.5 x 21.8 x 22.2
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
Not available
12
GFCI outletsYesNo
Covered outletsNoNo
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
457 cc OHV 4-stroke, cast iron sleeve
457 cc Ducar OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric
Warranty
Warranty
5 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
9500 W
9500 W
Starting watts
12000 W
12000 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
12 h
Run time @25% load
19 h
Not available
PropaneNot availableNot available
Running watts
9025 W
8550 W
Starting watts
11400 W
Not available
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
3.5 h
5 h
Run time @25% load
7 h
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
Not available
UPC
811640016227
814726024598
Core / High-priority specs
Running Watts (Gasoline)
9500
9500
Running Watts (Propane)
9025
8550
Starting Watts (Gasoline)
12000
12000
Starting Watts (Propane)
11400
Not available
Runtime @ 50% Load (Gasoline)
9
12
Runtime @ 50% Load (Propane)
3.5
5
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 25% Load (Propane)
7
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 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
OHV 4-stroke
Ducar OHV 4-stroke
Engine Displacement
457
457
Cylinder Sleeve
Cast iron sleeve
Not available
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
Not available
10W30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 50% Load (Gasoline)
9
12
Runtime @ 50% Load (Propane)
3.5
5
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
Recoil, Electric
Not available
Included Accessories
Funnel, tool kit, propane hose, battery, and wheel kit
Funnel, tool kit, propane hose, battery, and wheel kit
Warranty & identification
Residential Warranty
5
Not available
Commercial Warranty
5
1
Part Number
Not available
G12KBN-SG
Additional specs
Summary
The DuroMax XP12000HX is a 9,500-watt dual-fuel generator built for job sites, home backup, and RV use. Its 12,000-watt peak capacity handles the startup surge of air conditioners, compressors, and welders, while the 9,500-watt running output sustains multiple heavy tools or household circuits simultaneously. Gasoline delivers 19 hours of runtime at quarter load, making this unit suitable for extended outages or multi-day events without constant refueling. The dual-fuel design means users can switch between gasoline and propane depending on fuel availability and storage constraints. On propane at 25% load, runtime drops to 7 hours, trading endurance for cleaner emissions and longer shelf life. The 457 cc cast iron engine is built for durability on job sites where generators take abuse. This is a stationary workhorse, not a portable grab-and-go unit.
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.
  • Most Powerful
    DuroMax XP12000HX
    9500W running
  • Quietest
    DuroMax XP12000HX
    74 dB
  • Longest Runtime
    Pulsar G12KBN
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP12000HX
Store links
No links yet.
Pulsar G12KBN
Store links
No links yet.
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