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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Ford FG28KVTWTCO
  • Cat RP5500
  • Model FG28KVTWTCO
    Model FG28KVTWTCO

    Ford 20,000W Tri-Fuel Generator

    20000W
    Running
    99.7 dB
    Noise
    View details
  • Model RP5500
    Model RP5500

    Cat 5,500W Gas Generator

    5500W
    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
SpecificationFord FG28KVTWTCOCat RP5500
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
Winner: Winner: 20000 W
5500 W
Starting watts
Winner: Winner: 28000 W
6875 W
Noise (lower limit)
Winner: Winner: 99.7 dB
0 dB
Weight
557 lbs
Winner: Winner: 178 lbs
Run time @50% load
10.8 h
Winner: Winner: 15 h
Run time @25% load
Not available
Not available
Fuel tank
17.17 gal
7.9 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
39.7 x 27.5 x 45.2
32.9 x 27.4 x 24.7
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
999 cc OHV V-Twin
300 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Electric, Remote
Recoil
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
20000 W
5500 W
Starting watts
28000 W
6875 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
10.8 h
15 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
Not available
UPC
814726029418
815683020036
Core / High-priority specs
Running Watts (Gasoline)
20000
5500
Starting Watts (Gasoline)
28000
6875
Runtime @ 50% Load (Gasoline)
10.8
15
AC Outlet Types
2x Duplex 120V 20A GFCI; 1x 120V 30A (L5-30R); 2x 120/240V 30A (L14-30R); 2x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R) GFCI, 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV V-Twin
OHV 4-stroke
Engine Displacement
999
300
Engine Oil Type
SAE 10W-30
SAE 30 or 10W-30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10.8
15
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Oil, funnel, tool kit, and wheel kit
Warranty & identification
Commercial Warranty
3
Not available
Part Number
Not available
502-3686
Additional specs
Summary
The Ford FG28KVTWTCO is a 20,000-watt tri-fuel generator built for whole-home backup, commercial job sites, and stationary power delivery. It runs on gasoline, propane, or natural gas, eliminating single-source fuel dependency. At 557 pounds with a 39.7 x 27.5 x 45.2 inch footprint, this is a semi-permanent installation that demands dedicated storage and logistical planning.
The Cat RP5500 is a 5500-watt gasoline generator built for homeowners, contractors, and outdoor enthusiasts who need reliable backup power without the complexity of larger units. This wattage tier handles most household circuits simultaneously, meaning you can run a refrigerator, well pump, and power tools at the same time, but not your entire home's air conditioning system. The 6875-watt peak capacity gives it the muscle to start high-inrush devices like compressors and sump pumps without stalling. Because the RP5500 runs on gasoline, fuel is available at any gas station, eliminating the supply chain friction of propane or diesel models. The 7.9-gallon tank paired with 15-hour runtime at half load means you refuel roughly once per day under typical use, not every few hours.
  • Most Powerful
    Ford FG28KVTWTCO
    20000W running
  • Quietest
    Ford FG28KVTWTCO
    99.7 dB
  • Longest Runtime
    Cat RP5500
    15h at 50% load
Where to buy
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Ford FG28KVTWTCO
Store links
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Cat RP5500
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No links yet.
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