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 1,868 results
1-25 of 1,868 results
Featured Item
Caterpillar 3516 DITA Generator
17 0

1999 Caterpillar 3516 DITA Generator

Recently Updated
$581,097.87 USD
3 POLE CIRCUIT BREAKER, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, COOLANT HEATER, DIESEL, FUEL TANK, Package Type Dealer Packaged Unit,
ConditionUsed
Usage310 Hours
Stock NumberE220008S
MLS Number12175244
CategoryGenerator Sets
Last Updated10/9/2024
Location
Brampton, ON, Canada
Sold By

Toromont Power Systems

Featured Item
2014 MMD Generator
7 0

2014 MMD Generator

Newly Listed
$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
Caterpillar XQ350 Mobile Power Module Generator Set
4 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

Recently Updated
$90,000 USD
ConditionUsed
Usage12,091 Hours
Stock NumberRP12543
MLS Number12624109
CategoryGenerator Sets
Last Updated10/9/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ-60 48KW Generator
7 0

2017 Caterpillar XQ-60 48KW Generator

Recently Updated
Call for price
Online Owner's Manual,
ConditionUsed
Usage1 Hours
Stock NumberEU00103
MLS Number12032041
CategoryGenerator Sets
Last Updated10/7/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Caterpillar XQ1475G Mobile Generator
4 0

2012 Caterpillar XQ1475G Mobile Generator

Recently Updated
$795,000 USD
110% Spill Containment, Auto Start, Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Engine Governor, Engine Type - Natural Gas, Frequency - 50 / 60 Hz, Generator, Online...
ConditionUsed
Usage28,596 Hours
Stock NumberRP15578
MLS Number13046385
CategoryGenerator Sets
Last Updated10/7/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ30 Generator
11 0

2015 Caterpillar XQ30 Generator

Recently Updated
Call for price
CATERPILLAR XQ30 GENERATOR, Online Owner's Manual, TRAILER VIN #16MBB1311FG072685,
Inspection Report
ConditionUsed
Usage18,961 Hours
Stock NumberUE01350
MLS Number12165367
CategoryGenerator Sets
Last Updated10/7/2024
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar C4.4 Diesel Generator
11 1

2020 Caterpillar C4.4 Diesel Generator

$51,500 USD
Used Caterpillar XQ125 110 kW standby (100 kW prime) rental grade diesel generator, SN-CK500876. CAT C4.4 engine, SN-J9G01028, EPA Tier 4 Final emissions. 3/60/277/480V or 3/60/120/208V...
ConditionUsed
Usage5,320 Hours
Engine ModelCaterpillar C4.4
Emission RatingUSA Tier 4 Final
Rear AxleTandem Axle
Stock NumberCentral States #4530
MLS Number12978920
CategoryGenerator Sets
Last Updated10/2/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
5 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

Call for price
Online Owner's Manual,
ConditionUsed
Usage11,181 Hours
Stock NumberRP12547
MLS Number12624121
CategoryGenerator Sets
Last Updated10/5/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ1475G Mobile Generator
6 0

2014 Caterpillar XQ1475G Mobile Generator

$877,128.86 USD
(480V), 60 HZ, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, JW HEATER, NATURAL GAS, Online Owner's Manual, TRAILER MOUNTED, TRANSPORTABILITY,
ConditionUsed
Usage12,160 Hours
MLS Number11822765
CategoryGenerator Sets
Last Updated10/2/2024
Location
Calgary, AB, Canada
Sold By

Finning Canada

Featured Item
Caterpillar XQ125KVA Generator
4 0

2020 Caterpillar XQ125KVA Generator

$43,500 USD
*CERTIFICATION AR, *END USE: EP RENTAL, *ENGINE ARPRIM, *GENERAL AR, *GENERATOR ARPWR, *HEATER GPGENERATOR, *OPTIONAL 208V 3PHASE NEMA REC, *OPTIONAL BATTERY CHARGER UL10A, *PERMANENT MAGNET...
ConditionUsed
Usage7,303 Hours
Stock NumberSEN272
MLS Number12769335
CategoryGenerator Sets
Last Updated10/7/2024
Location
Colby, KS, US
Sold By

Foley Equipment

Featured Item
Caterpillar XQ2000 Mobile Power Module Generator Set
8 0

2024 Caterpillar XQ2000 Mobile Power Module Generator Set

$998,000 USD
*3516B DITA MOBILE EQUIPMENT, *3516B POWER MODULE, *EMCP 4.4 CONTROLLER, 3 Way Fuel Valve, 40FT CONTAINER SOUND ATTENUATED, Auto Start, Camlocks, Earth Leakage Detection, Engine Governor,...
ConditionUsed
MLS Number13147223
CategoryGenerator Sets
Last Updated10/7/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Cummins DQFAD Diesel Generator
10 1

2007 Cummins DQFAD Diesel Generator

$399,900 USD
Used Cummins 1000 kW trailered / portable rental grade standby (900 kW prime) diesel generator set, model DQFAD, SN-C070042109. Cummins QST30-G5 NR2 engine rated 1490 HP at 1800 RPM,...
ConditionUsed
Horse Power1490 HP
Engine ModelCummins QST30-G5 NR2
Emission RatingUSA Tier 2
Rear AxleTandem Axle
Stock NumberCentral States #4538
MLS Number12998489
CategoryGenerator Sets
Last Updated9/30/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar XQ230 Diesel Generator
12 1

2019 Caterpillar XQ230 Diesel Generator

$109,900 USD
Used Caterpillar XQ230 200 kW standby (182 kW prime) rental grade diesel generator, SN-CK200192. CAT C7.1 engine rated 320 HP at 1800 RPM, SN-7L300467, EPA Tier 4 Final emissions....
ConditionUsed
Usage4,146 Hours
Horse Power320 HP
Engine ModelCaterpillar C7.1
Emission RatingUSA Tier 4 Final
Rear AxleTandem Axle
Stock NumberCentral States #4522
MLS Number12978894
CategoryGenerator Sets
Last Updated9/30/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar G3516 Generator
8 0

1999 Caterpillar G3516 Generator

Call for price
ConditionUsed
Usage200 Hours
Stock NumberE16296
MLS Number13124562
CategoryGenerator Sets
Last Updated10/7/2024
Location
West Columbia, SC, US
Sold By

Blanchard Power Systems

Featured Item
Caterpillar XQ570 Diesel Generator
12 1

2021 Caterpillar XQ570 Diesel Generator

$249,900 USD
Used Caterpillar XQ570 500 kW standby (455 kW prime) rental grade diesel generator, SN-ME500429. CAT C18 engine rated 779 HP at 1800 RPM, SN-CM800662, EPA Tier 4 Final emissions. ...
ConditionUsed
Usage4,429 Hours
Horse Power779 HP
Engine ModelCaterpillar C18
Emission RatingUSA Tier 4 Final
Rear AxleTandem Axle
Stock NumberCentral States #4475
MLS Number12786355
CategoryGenerator Sets
Last Updated9/30/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar C32 Generator
7 0

2006 Caterpillar C32 Generator

$595,000 USD
Auto Start, Battery Charger, Battery Disconnect Switch, Coolant Heater, Engine Governor, Engine Type - Diesel, Fire Extinguisher, Frequency - 60 Hz, Fuel Tank Type - Single Wall, Generator,...
ConditionUsed
Usage1,740 Hours
Stock NumberUE2286
MLS Number12704038
CategoryGenerator Sets
Last Updated9/10/2024
Location
Albuquerque, NM, US
Sold By

Wagner Equipment Co.

Featured Item
Caterpillar 3516C-HD Generator
18 0

2010 Caterpillar 3516C-HD Generator

$425,000 USD
60 HZ, AUTO START, CAT BRAND GENSET, DIESEL, GENERATORS, Package Type Cat Standard Unit, PRIME, Rebuild Dealer Rebuild Overhaul Completed by North American CAT Dealer - Paperwork Available...
ConditionUsed
Usage3 Hours
Stock NumberUE05102
MLS Number11383747
CategoryGenerator Sets
Last Updated9/9/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ 350 (120-480 V) 350@1800/3/SBY EKW@RPM/PH/R Generator
14 0

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

$165,500 USD
110% SPILL CONTAINMENT, 3 WAY FUEL VALVE, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, CATERPILLAR XQ350 GENERATOR, CONTINUOUS, DIESEL, DUAL WALL FUEL...
Inspection Report
ConditionUsed
Usage5,945 Hours
Stock NumberUE01261
MLS Number11368660
CategoryGenerator Sets
Last Updated10/7/2024
Location
Eugene, OR, 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 Updated9/9/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Featured Item
Magnum MMG320 Diesel Generator
12 1

2013 Magnum MMG320 Diesel Generator

$69,900 USD
Used Magnum 278 kW standby (256 kW prime) rental grade portable diesel generator set, model MMG320, SN-1302032. John Deere engine model 6090HF485, SN-RG6090L115457 rated 422 HP at 1800 RPM...
ConditionUsed
Usage8,798 Hours
Horse Power422 HP
Engine ModelJohn Deere 6090HF485
Emission RatingUSA Tier 3 Flex
Stock NumberCentral States #4059
MLS Number11993768
CategoryGenerator Sets
Last Updated9/30/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar 3406C Generator
29 0

2001 Caterpillar 3406C Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage549 Hours
Stock NumberEU00138
MLS Number12740073
CategoryGenerator Sets
Last Updated10/7/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Caterpillar LC7024H Generator
7 0

2023 Caterpillar LC7024H Generator

$25,582.93 USD
CSA CERTIFICATION, PERMANENT MAGNET GENERATOR,
Inspection Report
ConditionUsed
Usage1 Hours
MLS Number12365776
CategoryGenerator Sets
Last Updated10/7/2024
Location
Brampton, ON, Canada
Sold By

Toromont Power Systems

Featured Item
Olympian G25UH1 Generator
11 0

1999 Olympian G25UH1 Generator

Call for price
ConditionUsed
Usage371 Hours
Stock NumberEU00141
MLS Number12740074
CategoryGenerator Sets
Last Updated9/9/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Olympian CAT G25LTA2 Generator
10 0

2016 Olympian CAT G25LTA2 Generator

$7,500 USD
ConditionUsed
Stock NumberP160065A
MLS Number9814029
CategoryGenerator Sets
Last Updated9/9/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
4 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$156,000 USD
Auto Start, Battery Charger, Package Type Cat Standard Unit,
Inspection Report
ConditionUsed
Usage4,900 Hours
MLS Number12860675
CategoryGenerator Sets
Last Updated10/7/2024
Location
Miami, FL, US
Sold By

Pantropic Power

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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