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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.

  • Sportsman GEN7500DF-SS
  • Cat RP6500 E
  • Model GEN7500DF-SS
    Model GEN7500DF-SS

    Sportsman 6,000W Dual-Fuel Generator

    6000W
    Running
    80 dB
    Noise
    View details
  • Model RP6500 E
    Model RP6500 E

    Cat 6,500W Gas Generator

    6500W
    Running
    0 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
SpecificationSportsman GEN7500DF-SSCat RP6500 E
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
6000 W
Winner: Winner: 6500 W
Starting watts
7500 W
Winner: Winner: 8125 W
Noise (lower limit)
Winner: Winner: 80 dB
0 dB
Weight
Winner: Winner: 194 lbs
202 lbs
Run time @50% load
9 h
Winner: Winner: 12 h
Run time @25% load
Not available—
Not available—
Fuel tank
6.2 gal
7.9 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
26.5 x 19.5 x 18
32.9 x 27.4 x 24.7
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
12
Not available—
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
above 10% %
Not available—
Engine
Engine
420 OHV 4-stroke
420 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Recoil, Electric
Warranty
Warranty
1 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
6000 W
6500 W
Starting watts
7500 W
8125 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
Not available—
Not available—
PropaneNot available—Not available—
Running watts
5400 W
Not available—
Starting watts
6700 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
5 h
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
false
false
Compliance
EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Not available—
true
UPC
27077082364
815683020067
Core / High-priority specs
Running Watts (Gasoline)
6000
6500
Running Watts (Propane)
5400
Not available—
Starting Watts (Gasoline)
7500
8125
Starting Watts (Propane)
6700
Not available—
Runtime @ 50% Load (Gasoline)
9
12
Runtime @ 50% Load (Propane)
5
Not available—
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (TT-30R)1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
420
420
Engine Oil Type
SAE10W-30
SAE 30 or 10W-30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
9
12
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
Starting Components
Not available—
Recoil, Electric
Included Accessories
Funnel, tool kit, propane hose, battery charging cables, and wheel kit
Oil, funnel, tool kit, battery, and wheel kit
Warranty & identification
Part Number
Not available—
502-3688
Additional specs
Summary
The Sportsman GEN7500DF-SS is a dual fuel generator capable of delivering 7,500 surge watts and 6,000 running watts, powered by a 15 HP 4-stroke OHV engine with both electric and recoil start options.
The Cat RP6500 E is a 6500-watt gasoline generator built for residential backup and light commercial work. Its 8125-watt peak capacity means it can start large tools and appliances that draw high inrush current, then sustain 6500 watts of continuous power for multiple devices simultaneously. A 7.9-gallon fuel tank delivers 12 hours of runtime at 50% load, which translates to roughly one full workday or overnight backup without refueling. The gasoline engine is straightforward to maintain and refuel anywhere, making this unit practical for job sites, outdoor events, and emergency home power.
  • Most Powerful
    Cat RP6500 E
    6500W running
  • Quietest
    Sportsman GEN7500DF-SS
    80 dB
  • Longest Runtime
    Cat RP6500 E
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
Sportsman GEN7500DF-SS
Store links
No links yet.
Cat RP6500 E
Store links
No links yet.
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