Generator Sets For Sale

New or Used Generators (Gen Set) by Owners and Dealers

Generator sets, also known as a "gen set", can provide power to any job site that is not connected to grid, needs an emergency supply, or wants to perform peak shaving. The generators come in various sizes and power ratings. The fuel type of the generator may be diesel, gasoline, or natural gas, and they may be trailer-mounted, mobile, or stationary. If you're looking for just a power unit, browse our industrial power unit section.
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1-25 of 1,814 results
1-25 of 1,814 results
Featured Item
Caterpillar 3516 RADIATOR Generator
5 0

2001 Caterpillar 3516 RADIATOR Generator

$5,000 USD
Inspection Report
ConditionUsed
Usage2,005 Hours
Stock NumberE16563
MLS Number13262221
CategoryGenerator Sets
Last Updated12/18/2024
Location
Florence, SC, US
Sold By

Blanchard Power Systems

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
12 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$145,500 USD
CATERPILLAR XQ350 GENERATOR, Online Owner's Manual, SKID MOUNTED,
Inspection Report
ConditionUsed
Usage1,845 Hours
Stock NumberUE01271
MLS Number11379738
CategoryGenerator Sets
Last Updated12/18/2024
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar XQ0350 Generator
8 0

2014 Caterpillar XQ0350 Generator

$165,500 USD
110% SPILL CONTAINMENT, 3 WAY FUEL VALVE, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, CAT C13 ENGINE, CATERPILLAR XA350 TIER4I, CIRCUIT BREAKER, CEM,...
Inspection Report
ConditionUsed
Usage5,491 Hours
Stock NumberUE01157
MLS Number11077982
CategoryGenerator Sets
Last Updated12/18/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar 3516B Generator Set
5 0

1999 Caterpillar 3516B Generator Set

$340,000 USD
60 HZ, CAT BRAND GENSET, CONTINUOUS, DIESEL, EMCP II+, GENERATORS, LESS THAN 1000 SINCE NEW, Online Owner's Manual, PRIME, STANDBY, USED 3516B 2000KW 2500KVA 480V 3PH 60HZ OPEN SKID,
ConditionUsed
Usage1,000 Hours
MLS Number9118451
CategoryGenerator Sets
Last Updated12/18/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3516B Generator
7 0

2024 Caterpillar 3516B Generator

$565,000 USD
** ENGINE WARRANTY BY MFG, 1825KW PRIME RATING 480V 60HZ 1800RPM - 1600KW PRIME RATING 400V 50HZ 15000 RPM, 60 HZ, CAT BRAND GENSET, DIESEL, EMCP 3.2 CONTROL PANEL - JACKET WATER HEATER,...
ConditionUsed
MLS Number965992
CategoryGenerator Sets
Last Updated12/18/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar G55LTA2 Generator
5 0

2010 Caterpillar G55LTA2 Generator

$3,500 USD
ConditionUsed
Stock NumberEQ084412
MLS Number12641751
CategoryGenerator Sets
Last Updated12/18/2024
Location
Milford, MA, US
Sold By

Milton CAT Power Systems

Featured Item
2014 MMD Generator
7 0

2014 MMD Generator

$27,000 USD
ConditionUsed
MLS Number13165155
CategoryGenerator Sets
Last Updated10/8/2024
Location
San Luis, AZ, US
Sold By

Water on Wheels LLC

Featured Item
Olympian CAT G25LTA2 Generator
10 0

2016 Olympian CAT G25LTA2 Generator

$7,500 USD
ConditionUsed
Stock NumberP160065A
MLS Number9814029
CategoryGenerator Sets
Last Updated12/18/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ 1250 Generator
1 0

1990 Caterpillar XQ 1250 Generator

$489,000 USD
Auto Start, Battery Charger, Camlocks, Engine Governor, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type - Dual Wall, Generator, Hitch, Trailer, Permanent Magnet Generator (PMG),...
Inspection Report
ConditionUsed
Usage670 Hours
MLS Number12860676
CategoryGenerator Sets
Last Updated12/18/2024
Location
Fort Myers, FL, US
Sold By

Pantropic Power

Featured Item
Atlas Copco QAS150 Generator
5 0

2014 Atlas Copco QAS150 Generator

$52,000 USD
AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, MULTI-VOLTAGE,
ConditionUsed
Usage2,656 Hours
Stock NumberEQ216865
MLS Number11773022
CategoryGenerator Sets
Last Updated12/18/2024
Location
Milford, MA, US
Sold By

Milton CAT Power Systems

Featured Item
Caterpillar 3412 Generator
10 0

1995 Caterpillar 3412 Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage541 Hours
Stock NumberEU00147
MLS Number12740183
CategoryGenerator Sets
Last Updated12/18/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Caterpillar XQ 2000 (277-480 V) 2000@1800/3/SBY EKW@RPM/PH/R Generator
6 0

Caterpillar XQ 2000 (277-480 V) 2000@1800/3/SBY EKW@RPM/PH/R Generator

$899,000 USD
60 HZ, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, BRAND NEW CONTAINER, NEW 1250GLS FUEL TANK, NEW HORIZONTAL RADIATOR, NEW EXHAUST SYSTEM, GENSET CONTROL PANEL EMCP 4.4 WITH MULTIFUNCTION...
ConditionUsed
Usage1,000 Hours
MLS Number11819023
CategoryGenerator Sets
Last Updated12/18/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
8 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$89,500 USD
Online Owner's Manual,
ConditionUsed
Usage13,810 Hours
Stock Number028452
MLS Number12271996
CategoryGenerator Sets
Last Updated12/18/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ200 Generator
4 0

2014 Caterpillar XQ200 Generator

$82,500 USD
Online Owner's Manual,
ConditionUsed
Usage7,540 Hours
Stock Number028220
MLS Number12272001
CategoryGenerator Sets
Last Updated12/18/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar SR4HV Generator
6 0

1997 Caterpillar SR4HV Generator

$5,000 USD
Online Owner's Manual,
ConditionUsed
Stock NumberEPU11019
MLS Number12125839
CategoryGenerator Sets
Last Updated12/18/2024
Location
Indianapolis, IN, US
Sold By

MacAllister Machinery

Featured Item
Caterpillar XQ230 T4F Generator
8 0

2019 Caterpillar XQ230 T4F Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage703 Hours
Stock NumberEU00120
MLS Number12030926
CategoryGenerator Sets
Last Updated12/18/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Cummins KT19 500KW GeneratorSet
27 0

Cummins KT19 500KW GeneratorSet

$78,500 USD
Complete Ready to go!, Cummins Genset, Gen Set w/switch Gear, Min Circuit Breaker Panel, bulk oil tanks, baskets under trailer,, Rectifier for 110 Volt in 531 Tandem axle Fruehauf Van...
ConditionUsed
Usage12,365 Hours
MLS Number11862078
CategoryGenerator Sets
Last Updated12/18/2024
Location
Middleton, WI, US
Sold By

NORTHWESTERN STONE LLC

Caterpillar XQ 350 (120-480 V) 350@1800/3/SBY EKW@RPM/PH/R Generator
8 0

2014 Caterpillar XQ 350 (120-480 V) 350@1800/3/SBY EKW@RPM/PH/R Generator

Newly Listed
$120,000 USD
110% SPILL CONTAINMENT, 3 WAY FUEL VALVE, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, CAT C13 ENGINE, CATERPILLAR XA350 TIER4I, CIRCUIT BREAKER, CEM,...
Inspection Report
ConditionUsed
Usage6,727 Hours
Stock NumberNR12802
MLS Number13305187
CategoryGenerator Sets
Last Updated12/30/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Caterpillar 3512C Generator
1 0

2013 Caterpillar 3512C Generator

Recently Updated
$418,500 USD
1500KW STANDBY @ 480V, 2013 CAT 3512C PACKAGE, 2200 GALLON FUEL TANK, 900KW ONBOARD LOAD BANK, EMCP 4.2 CONTROLLER, EPA TIER 2, GENERATOR SET, MOUNTED CIRCUIT BREAKER, Online Owner's Manual ...
ConditionUsed
Usage270 Hours
Stock NumberXEU0043
MLS Number13155101
CategoryGenerator Sets
Last Updated12/30/2024
Location
Topeka, KS, US
Sold By

Foley Equipment

Airman GENSET 60 Generator
8 0

2020 Airman GENSET 60 Generator

Recently Updated
$39,000 USD
ConditionUsed
Usage2,705 Hours
Stock NumberCRS21-751
MLS Number13149155
CategoryGenerator Sets
Last Updated12/30/2024
Location
Sacramento, CA, US
Sold By

Holt of California

Caterpillar XQ400 Generator
1 0

2008 Caterpillar XQ400 Generator

Recently Updated
$225,000 USD
2008 CAT XQ400 PORTABLE, FRESH GEN. END DIP AND BAKE, FRESH PAINT, FUEL TANK CLEANED, GENERATOR SET, NEW EMCP 4.2 CONTROL PANEL, Online Owner's Manual, REBUILT TIER 3 C15 ENGINE, ZERO HOUR...
ConditionUsed
Usage1 Hours
Stock NumberXEU0024
MLS Number13109165
CategoryGenerator Sets
Last Updated12/30/2024
Location
Topeka, KS, US
Sold By

Foley Equipment

Caterpillar XQ350 Mobile Power Module Generator Set
6 0

2014 Caterpillar XQ350 Mobile Power Module Generator Set

Recently Updated
$114,440.28 USD
Battery Disconnect Switch, Cat Brand Genset, Coolant Heater, Engine Governor, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type - Dual Wall, Generator, Hitch, Trailer, Jacket Water...
ConditionUsed
Usage8,354 Hours
MLS Number12896757
CategoryGenerator Sets
Last Updated12/30/2024
Location
Surrey, BC, Canada
Sold By

Finning Canada

Caterpillar XQ175 Generator
4 0

2011 Caterpillar XQ175 Generator

Recently Updated
$65,889.86 USD
Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Coolant Heater, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type, Generator, Hitch, Trailer, Rating - Prime, Trailer...
ConditionUsed
Usage5,505 Hours
MLS Number12811592
CategoryGenerator Sets
Last Updated12/30/2024
Location
Edmonton, SK, Canada
Sold By

Finning Canada

Caterpillar XQ175 Generator
4 0

2011 Caterpillar XQ175 Generator

Recently Updated
$65,889.86 USD
Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Coolant Heater, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type, Generator, Hitch, Trailer, Jacket Water Heater, Package...
ConditionUsed
Usage5,036 Hours
MLS Number12811591
CategoryGenerator Sets
Last Updated12/30/2024
Location
Edmonton, AB, Canada
Sold By

Finning Canada

Caterpillar XQ175 Generator
1 0

2011 Caterpillar XQ175 Generator

Recently Updated
$65,889.86 USD
Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Coolant Heater, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type, Generator, Hitch, Trailer, Jacket Water Heater, Rating ...
ConditionUsed
Usage4,742 Hours
MLS Number12811590
CategoryGenerator Sets
Last Updated12/30/2024
Location
Regina, AB, Canada
Sold By

Finning Canada

Did you find what you were looking for? Yes No

The Marketplace for Buying and Selling Industrial Generators

A generator set, aka a "gen set", can provide power to any job site that is not connected to grid or otherwise needs an emergency supply. In addition, a gen set can save money by producing power during peak hours when energy costs the most (a practice known as “peak shaving”). We are pleased to offer a huge listing of gas, natural gas, and diesel generator sets for all of your power supply needs.

Choosing the Right Gen Set

A gen set can be split into three main types:

  • Diesel Generator Sets – A diesel genset has better fuel efficiency than a gas gen set, but usually cost more. Earlier models are much noisier than modern versions.
  • Gasoline Generator Sets – Although less expensive than diesel, their components are actually more expensive to replace. More popular than diesel when it comes to intermittent use.
  • Natural Gas – The most expensive gen set to operate is also potentially explosive, so caution must be taken at all times. However, since many buildings have a natural gas line, you usually won’t need to store fuel.

Whether you choose a natural gas, gasoline, or diesel genset, you will need to decide on the best cooling system. Again, there are three types:

  • Air-cooled – The loudest and cheapest cooling system with low maintenance costs (typically received for smaller generator sets).
    Typically used for power levels ranging from 8 to 20 kilowatts.
  • Water-cooled – Larger generator sets require liquid cooling, which is quieter than air, but also more complex and oftentimes messier.
    Typically used for power levels ranging from 25 to 60 kilowatts.
  • Hydrogen – The most powerful gen set is also the most dangerous; hydrogen is highly combustible and most be closely monitored.
    Typically used for power levels above 60 kilowatts.
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