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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Generator Sets (1827)
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1-25 of 1,827 results
1-25 of 1,827 results
Featured Item
2013 Wacker Neuson G-120 Generator
22 0

2013 Wacker Neuson G-120 Generator

$25,000 USD
2013 WACKER NEUSON G-120 PORTABLE GENERATOR 96 KW - 3 PHASE HUGE BUILT IN 220 GALLON FUEL TANK UNDER 4,000 ORIGINAL HOURS 150 HP JOHN DEERE 4.5 LITER POWER-TECH TURBO...
ConditionUsed
Usage3,800 Hours
Horse Power150 HP
Engine ModelJohn Deere 4.5 POWER-TECH
Emission RatingPRE-EMISSIONS
Weight8500
Stock NumberJOHN DEERE DIESEL
MLS Number13175558
CategoryGenerator Sets
Last Updated10/14/2024
Location
Pompano Beach, FL, US
Sold By

Pro Quip

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
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 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 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 XQ425 Diesel Generator
8 0

2018 Caterpillar XQ425 Diesel Generator

$219,900 USD
Used Caterpillar XQ425 375 kW standby (340 kW prime) rental grade diesel generator, SN-X8H00137. CAT C13 engine rated 518 HP at 1800 RPM, SN-NF300186, EPA Tier 4 Final emissions. ...
ConditionUsed
Usage1,698 Hours
Horse Power518 HP
Engine ModelCaterpillar C13
Emission RatingUSA Tier 4 Final
Rear AxleTandem Axle
Stock NumberCentral States #4482
MLS Number12808267
CategoryGenerator Sets
Last Updated10/21/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

1997 Caterpillar Olympian 100KW Skid Mtd Generator
10 0

1997 Caterpillar Olympian 100KW Skid Mtd Generator

Newly Listed
At auction Nov. 9
1997 Caterpillar Olympian 100KW GeneratorCaterpillar Diesel, 3 Phase, 120/240 V, 1800 RPMSeller will assist in loadingOperational Hour Meter - No guarantees made as to actual hours/miles...
Lot Number25302-22-2
ConditionUsed
Usage167 Hours
MLS Number13222002
CategoryGenerator Sets
Last Updated11/9/2024
Location
Spotsylvania, VA, US
Listed By

AllSurplus

2005 Generac SD0060-G363 60KW Portable Gen Set
10 0

2005 Generac SD0060-G363 60KW Portable Gen Set

Newly Listed
At auction Nov. 9
2005 Generac SD0060-G363 60KW Portable Gen Set3 Phase, John Deere Diesel,1800 RPM, 75 KVA, 480 V, 2006 Rocket Trailer s/n 4WMK8DE176A004471Runs with jump start alternate fuel source ...
Lot Number25302-23-1
ConditionUsed
MLS Number13221995
CategoryGenerator Sets
Last Updated11/9/2024
Location
Spotsylvania, VA, US
Listed By

AllSurplus

2006 Generac SD0060-G363 60KW Portable Gen Set
10 0

2006 Generac SD0060-G363 60KW Portable Gen Set

Newly Listed
At auction Nov. 9
Generac SD0060-G63 60KW Gen Set3 Phase, John Deere Diesel, Rocket Trailer s/n 4WMK8DE116A0050798Seller Comments: Runs with jump start alternate fuel source Main tank has hole in top seller...
Lot Number25302-27-1
ConditionUsed
MLS Number13221994
CategoryGenerator Sets
Last Updated11/9/2024
Location
Spotsylvania, VA, US
Listed By

AllSurplus

Caterpillar C15 Generator
5 0

2020 Caterpillar C15 Generator

Newly Listed
$142,487.98 USD
Cat Brand Genset, Control Panel - EMCP 4.2B, CSA Certification, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater, No Enclosure, Rating - Prime, UL 2200 Listed...
ConditionUsed
Usage551 Hours
MLS Number13221217
CategoryGenerator Sets
Last Updated11/8/2024
Location
Calgary, AB, Canada
Sold By

Finning Canada

Kohler 300 KW Generator
7 0

Kohler 300 KW Generator

Newly Listed
$29,000 USD
Fuel Type: Diesel, Capacity: 300
ConditionUsed
Engine ModelVolvo tad1240
MLS Number13220846
CategoryGenerator Sets
Last Updated11/9/2024
Location
Decatur, TX, US
Sold By

Industrial Diesel, Inc.

Kohler 50REZGC Generator
8 0

2018 Kohler 50REZGC Generator

Newly Listed
Call for price
50kW Like New Liquid Propane Kohler open skid mounted generator set powered by a PSI engine, 240V, single phase, 60Hz, 1800rpm, 268 hours since new in 2018
ConditionUsed
Usage268 Hours
Stock Number103616
MLS Number13220782
CategoryGenerator Sets
Last Updated11/8/2024
Location
Houston, TX, US
Sold By

Swift Equipment Solutions

Kohler 35RZ62 Enclosed Generator
1 0

Kohler 35RZ62 Enclosed Generator

Newly Listed
Call for price
35kW Propane Kohler enclosed generator set powered by a Ford engine, 120/240V, 60Hz, 1800rpm, single phase with 665 hours
ConditionUsed
Usage665 Hours
Stock Number103615
MLS Number13220742
CategoryGenerator Sets
Last Updated11/8/2024
Location
Houston, TX, US
Sold By

Swift Equipment Solutions

Cummins DQCB Diesel Generator
9 0

2024 Cummins DQCB Diesel Generator

Recently Updated
$279,900 USD
*****Just in***** New Cummins 750 kW standby (680 kW prime) diesel generator set, model DQCB, SN-H240363490. Cummins QSK23-G7 engine rated 1220 HP at 1800 RPM, SN-85018864, EPA Tier 2...
ConditionNew
Horse Power1220 HP
Engine ModelCummins QSK23-G7 NR2
Emission RatingUSA Tier 2
Stock NumberCentral States #4615
MLS Number13198586
CategoryGenerator Sets
Last Updated11/8/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Caterpillar XQ125 T4F Generator
3 0

2019 Caterpillar XQ125 T4F Generator

Recently Updated
$47,000 USD
110% Spill Containment, Battery Charger, Emissions Level - EPA - EPA TIER 4f, Engine Governor, Hitch, Trailer, Regulatory Marking, Spark Arresting Muffler, Trailer Mounted,
ConditionUsed
Usage7,404 Hours
Stock NumberRP14954
MLS Number13002042
CategoryGenerator Sets
Last Updated11/8/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Caterpillar XQ125 T4F Generator
2 0

2019 Caterpillar XQ125 T4F Generator

Recently Updated
$46,500 USD
110% Spill Containment, Battery Disconnect Switch, Camlocks, Cat Brand Genset, Emissions Level - EPA - EPA TIER 4f, Engine Governor, Generator, Hitch, Trailer, Regulatory Marking, Spark...
ConditionUsed
Usage6,097 Hours
Stock NumberRP14947
MLS Number13004411
CategoryGenerator Sets
Last Updated11/8/2024
Location
Dalhart, TX, US
Sold By

Warren Power Systems

Caterpillar D150-8 Generator
8 0

2006 Caterpillar D150-8 Generator

Recently Updated
$30,500 USD
Auto Start, Base Tank, Battery Charger, Battery Set, Cat Brand Genset, Circuit Breaker, Control Panel - EMCP 4.2B, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater,...
ConditionUsed
Usage437 Hours
MLS Number12991954
CategoryGenerator Sets
Last Updated11/8/2024
Location
Jacksonville, FL, US
Sold By

Ring Power Corporation

Caterpillar XQ125 T4F Generator
1 0

2018 Caterpillar XQ125 T4F Generator

Recently Updated
$47,000 USD
Online Owner's Manual,
ConditionUsed
Usage6,914 Hours
Stock NumberRP14023
MLS Number12965824
CategoryGenerator Sets
Last Updated11/8/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Caterpillar XQ125 T4F Generator
5 0

2018 Caterpillar XQ125 T4F Generator

Recently Updated
$49,000 USD
ConditionUsed
Usage8,144 Hours
Stock NumberRP14012
MLS Number12965822
CategoryGenerator Sets
Last Updated11/8/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Caterpillar XQ175 Generator
4 0

2011 Caterpillar XQ175 Generator

Recently Updated
$68,193.24 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 Updated11/8/2024
Location
Regina, SK, Canada
Sold By

Finning Canada

Caterpillar XQ175 Generator
4 0

2011 Caterpillar XQ175 Generator

Recently Updated
$68,193.24 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 Updated11/8/2024
Location
Edmonton, AB, Canada
Sold By

Finning Canada

Caterpillar XQ175 Generator
1 0

2011 Caterpillar XQ175 Generator

Recently Updated
$68,193.24 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 Updated11/8/2024
Location
Regina, AB, Canada
Sold By

Finning Canada

Caterpillar C32 Generator
6 0

2010 Caterpillar C32 Generator

Recently Updated
$250,000 USD
1 HOURS, 60 HZ 480 V, C32 ENGING, CAT SR5 GENERATOR, EMCP 3.2, EMCP4.2 CONTROL PANEL, TIER 2, MOUNTED RADIATOR, Online Owner's Manual, OPEN UNIT, RATED 1000 KW STBY, REBUILT CAT C32 GENSET,...
ConditionUsed
Usage1 Hours
Stock NumberXEU0007
MLS Number13108607
CategoryGenerator Sets
Last Updated11/8/2024
Location
Topeka, KS, US
Sold By

Foley Equipment

Caterpillar 3508 Generator
4 0

1989 Caterpillar 3508 Generator

Price Drop
$245,000 USD
30FT 5TH-WHEEL CONTAINER CHASSIS, Auto Start, Battery Charger, Battery Disconnect Switch, Engine Type - Diesel, Fuel Tank Type - Dual Wall, Package Type Dealer Packaged Unit, Rating -...
ConditionUsed
Usage1,895 Hours
MLS Number13122590
CategoryGenerator Sets
Last Updated11/8/2024
Location
Miami, FL, US
Sold By

Ohio CAT

Caterpillar XQ425 T4F Generator
5 0

2019 Caterpillar XQ425 T4F Generator

Recently Updated
$179,500 USD
ConditionUsed
Usage9,249 Hours
Stock NumberRP14974
MLS Number12628498
CategoryGenerator Sets
Last Updated11/8/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

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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