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Westinghouse WGen7500c vs Powermate PM9400E

Westinghouse WGen7500c vs Powermate PM9400E

Both deliver 7500 running watts, but Westinghouse runs longer (16 hrs at 25%) while Powermate is lighter. Best for home backup and tools.

  • Powermate PM9400E
  • Westinghouse WGen7500c

Comparison Overview

Both generators land in the same power class, delivering 7500 running watts, but the Westinghouse WGen7500c separates itself on runtime. It’s rated for 16 hours at 25% load and 11 hours at 50%, versus the Powermate PM9400E at 13 hours at 25% and 10 hours at 50%. If you want fewer refueling breaks during an outage, that extra time can matter.

Starting power is essentially a tie, with the Westinghouse at 9500 starting watts and the Powermate at 9400 starting watts, enough for many refrigerators, sump pumps, and larger power tools that surge on startup. Neither is an inverter generator, so they’re better suited to home backup and job site tools than sensitive electronics.

Portability is close, but the Powermate is lighter at 188 lb compared with 197.1 lb for the Westinghouse. Noise is listed at 72 dB for the Westinghouse, while the Powermate’s noise spec is not provided, so it’s harder to compare real-world loudness.

Both include a 3-year warranty, so the decision usually comes down to runtime certainty versus slightly easier handling. Choose Westinghouse for longer run stretches, Powermate for a bit less weight and similar output.

Key takeaways

  • Both deliver 7500 running watts and use gasoline, suited for home backup and tools.
  • Westinghouse WGen7500c runs 16 hours at 25% load, longer than Powermate’s 13 hours.
  • Starting watts are close, Westinghouse 9500 vs Powermate 9400 for motor surges.
  • Powermate PM9400E weighs 188 lb, about 9 lb lighter than Westinghouse.
  • Both include a 3-year warranty, helpful for long-term ownership confidence.
  • Westinghouse lists 72 dB noise, Powermate noise rating is not provided here.

Best use cases

Choose the Westinghouse WGen7500c if you want the most predictable long-run performance for home backup. With 16 hours at 25% load and 11 hours at 50%, it’s a strong fit for overnight coverage when you’re running essentials like a refrigerator, some lights, a router, and cycling loads like a furnace blower or sump pump. The 9500 starting watts also gives a little extra cushion for motor starts, which can reduce nuisance tripping when multiple appliances kick on.

It’s also a practical pick for property work where you’ll run tools for long stretches, like a table saw, air compressor, or pressure washer, and you’d rather refuel less often. The tradeoff is weight, at 197.1 lb, and it’s not an inverter, so it’s not ideal for quiet campsites or for directly powering sensitive electronics without additional protection.

Choose the Powermate PM9400E if you want nearly the same power in a slightly easier-to-move package. At 188 lb, it can be a bit more manageable when loading, repositioning, or storing, especially if you’re moving it around a garage or job site. Output is still strong at 7500 running watts and 9400 starting watts, which covers many of the same household circuits and tool needs as the Westinghouse.

The main tradeoffs are shorter rated runtime (especially at lighter loads) and the lack of a published noise rating here, which makes it harder to plan for neighborhood or campsite expectations. Like the Westinghouse, it’s a conventional generator, so it’s best for tools and household essentials rather than RV-style quiet use or electronics-first setups.

Verdict & recommendation

If your priority is longer stretches between refueling during outages or long work sessions, the Westinghouse WGen7500c is the safer bet on paper with 16 hours at 25% load and 11 hours at 50%. If your priority is keeping similar power while shaving a little weight for easier handling, the Powermate PM9400E makes sense at 188 lb with the same 7500 running watts.

Starting power is effectively a wash (Westinghouse 9500 vs Powermate 9400 starting watts), and both are non-inverter models, so plan accordingly for noise and for sensitive electronics. In practice, pick Westinghouse for runtime-focused home backup, and pick Powermate if portability matters more and you can refuel a bit sooner.

Last updated February 26, 2026

  • Model PM9400E
    Model PM9400E

    Powermate 7,500W Gas Generator

    7500W
    Running
    0 dB
    Noise
    View details
  • Model WGen7500c
    Model WGen7500c

    Westinghouse 7,500W Gas Generator

    7500W
    Running
    72 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
SpecificationPowermate PM9400EWestinghouse WGen7500c
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 7500 W
Winner: Winner: 7500 W
Starting watts
9400 W
Winner: Winner: 9500 W
Noise (lower limit)
0 dB
Winner: Winner: 72 dB
Weight
Winner: Winner: 188 lbs
197.1 lbs
Run time @50% load
10 h
Winner: Winner: 11 h
Run time @25% load
13 h
16 h
Fuel tank
8 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
31 x 27 x 26.4
27.2 x 26.1 x 26
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
23 %
Engine
Engine
420 cc OHV 4-stroke
Westinghouse OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil, Electric
Not available
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
7500 W
7500 W
Starting watts
9400 W
9500 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
10 h
11 h
Run time @25% load
13 h
16 h
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
696471077827
850011336687
Core / High-priority specs
Running Watts (Gasoline)
7500
7500
Starting Watts (Gasoline)
9400
9500
Runtime @ 50% Load (Gasoline)
10
11
Runtime @ 25% Load (Gasoline)
13
16
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
420
Cylinder Sleeve
Not available
cast iron sleeve
Engine Oil Type
10W-30 / SAE 30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
13
16
Runtime @ 50% Load (Gasoline)
10
11
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Mobility Components
Not available
Yes
Starting Components
Oil, battery charger, battery, and wheel kit
Not available
Included Accessories
Oil, battery charger, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, battery, and wheel kit
Additional specs
Summary
The Powermate PM9400E is a portable generator offering 9,400 starting watts and 7,500 running watts, equipped with a Generac 420cc OHV engine and an 8-gallon fuel tank, providing up to 13 hours of runtime at 25% load.
The Westinghouse WGen7500c is a portable generator designed for home backup power, offering 7,500 running watts and 9,500 peak watts. It features a 420cc 4-Stroke OHV engine, push-button electric start with remote key fob, and a CO sensor for safety.
  • Most Powerful
    Powermate PM9400E
    7500W running
  • Quietest
    Westinghouse WGen7500c
    72 dB
  • Longest Runtime
    Westinghouse WGen7500c
    11h at 50% load
Where to buy
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Powermate PM9400E
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Westinghouse WGen7500c
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