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 1,336 results
Featured Item
Generac 100 Kw Diesel Generator
5 0

2019 Generac 100 Kw Diesel Generator

Recently Updated
$45,000 USD
Generac 100 kW Surplus Diesel Generator Model #: SD0100 Serial# 3004552927 Year 2019, 4 Hours, 277/480 Volt, 3 Phase Sound Attenuated Enclosure with Belly Tank,
ConditionUsed
Usage4 Hours
Engine ModelFPT F4GE9685A-J602
Stock Number89310
MLS Number12034468
Last Updated5/31/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
Caterpillar C6.6 Generator
2 0

2010 Caterpillar C6.6 Generator

Recently Updated
$24,500 USD
ConditionUsed
Usage7,997 Hours
MLS Number11870306
Last Updated6/1/2023
Location
Saint Augustine, FL, US
Sold By

Ring Power Corporation

Featured Item
Caterpillar C15 Generator
2 0

2013 Caterpillar C15 Generator

Recently Updated
$107,500 USD
ConditionUsed
Usage167 Hours
MLS Number11686437
Last Updated6/1/2023
Location
Saint Augustine, FL, US
Sold By

Ring Power Corporation

Featured Item
Caterpillar 600 KW Generator
5 0

2007 Caterpillar 600 KW Generator

Call for price
266 Hours, Fuel Type: Diesel, Capacity: 600
ConditionUsed
Usage266 Hours
Engine ModelCaterpillar C18
Stock Number89806
MLS Number12037888
Last Updated5/11/2023
Location
Jacksonville, FL, US
Sold By

Generator Source

Featured Item
Cummins 2500 KW Generator
4 0

2014 Cummins 2500 KW Generator

Call for price
41 Hours, Fuel Type: Diesel, Capacity: 2500
ConditionUsed
Usage41 Hours
Engine ModelCummins QSK60-G19
Stock Number25058
MLS Number12037886
Last Updated5/11/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
Cummins DQDAC Generator
5 0

2023 Cummins DQDAC Generator

Call for price
Multiple in Stock,
ConditionNew
Engine ModelCummins PCEXL0504AAB
Stock Number71348
MLS Number12034712
Last Updated5/10/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
Magnum MMG25 Diesel Generator
3 0

2015 Magnum MMG25 Diesel Generator

$19,000 USD
Magnum 18 kW Portable Diesel Generator Model# MMG25 Serial# 1505777 Year 2015, 8256 Hours, Voltage Selector Switch, Sound Attenuated Enclosure on Trailer,
ConditionUsed
Usage8,256 Hours
Rear AxleSingle Axle
Stock Number89481
MLS Number12034518
Last Updated5/18/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
MTU 200 KW Diesel Generator
1 0

2022 MTU 200 KW Diesel Generator

Call for price
BRAND NEW MTU 200 kW Diesel Generator Year 2022, 277/480 Volt, 3 Phase, Tier 3 Sound Attenuated Enclosure,
ConditionNew
Stock Number71486
MLS Number12034515
Last Updated5/10/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
Cummins KTA50 Diesel Generator
3 0

1997 Cummins KTA50 Diesel Generator

$75,000 USD
Cummins 750 kW Diesel Generator Model #: KTA50 Serial #: C08595512 Year 1997, 900 Hours, 277/480 Volt, 3 Phase, Weatherproof Enclosure,
ConditionUsed
Usage923 Hours
Stock NumberFL-89609
MLS Number12034500
Last Updated5/10/2023
Location
Jacksonville, FL, US
Sold By

Generator Source

Featured Item
Generac 20 KW Diesel Generator
4 0

2018 Generac 20 KW Diesel Generator

$13,000 USD
Generac 20 kW Diesel Generator Model #: G0070900 Serial# 3001392110 Year 2018, 111 Hours, 120/240 Volt, Single Phase Sound Attenuated Enclosure with Belly Tank *Multiple In Stock* ...
ConditionUsed
Stock Number89398
MLS Number12034444
Last Updated5/18/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
Caterpillar 3306 Enclosed Diesel Generator
4 0

1999 Caterpillar 3306 Enclosed Diesel Generator

$50,000 USD
Caterpillar 230 kW Diesel Generator Model #: 3306 Serial #: 9NR03829 Year 1999, 780 Hour, 120/208 Volt, 3 Phase, Enclosed,
ConditionUsed
Usage780 Hours
Stock NumberFL-89440
MLS Number12034385
Last Updated5/10/2023
Location
Jacksonville, FL, US
Sold By

Generator Source

Featured Item
Generac 230 KW Diesel Generator
3 0

2000 Generac 230 KW Diesel Generator

$25,000 USD
Generac 230 kW Diesel Generator Model #: 20A024043 Serial #: 2057577 Year 2000, 33 Hours, 120/208 Volt, 3 Phase, Weatherproof Enclosure,
ConditionUsed
Usage33 Hours
Stock Number89100
MLS Number12034384
Last Updated5/18/2023
Location
Jacksonville, FL, US
Sold By

Generator Source

Featured Item
Generac 500 KW Generator
6 0

2014 Generac 500 KW Generator

$92,000 USD
Generac 500 kW Dual Fuel Generator Model# MB0500KG22152B18GPNL2 Serial #: 8634621 Year 2014, 5 Hours, 277/480V, 3 Phase Open Skid Unit, Additional Features:, ▸ Auto Start/Stop, ▸ Safety Shut...
ConditionUsed
Usage5 Hours
Stock Number88715
MLS Number12034294
Last Updated5/18/2023
Location
Brighton, CO, US
Sold By

Generator Source

Featured Item
40KW Open Frame Diesel Generator - New Custom Manufactured
1 0

40KW Open Frame Diesel Generator - New Custom Manufactured

$19,995 USD
40KW / 40,000W Open Frame Diesel Generator Final Tier IV Standard Base Unit: , 40KW or 40,000W , Single Phase Option 333A @ 120VAC / 166A @ 240VAC , Three Phase Option ...
Warranty
Quantity6
ConditionNew
Horse Power75 HP
Engine Model4H50TIC
Emission RatingTier 4 Final
L x W58 x 27
Weight990
Stock NumberMSS40_4HMFT
MLS Number11990296
Last Updated5/2/2023
Location
Columbus, NJ, US
Sold By

Melton Industries

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

$850,000 USD
60 HZ, DIESEL, BATTERY DISCONNECT SWITCH, BATTERY CHARGER, PMG, DUAL WALL FUEL TANK, BRAND NEW CONTAINER, NEW 1250GLS FUEL TANK, NEW HORIZONTAL RADIATOR, NEW EXHAUST SYSTEM, GENSET CONTROL...
ConditionUsed
Usage1,000 Hours
MLS Number11819023
Last Updated5/11/2023
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3516B Generator Set
6 0

2022 Caterpillar 3516B Generator Set

$489,000 USD
60 HZ, GENERATORS, STANDBY, DIESEL, CAT BRAND GENSET, ** ENGINE WARRANTY BY MFG, 1825KW PRIME RATING 480V 60HZ 1800RPM - 1600KW PRIME RATING 400V 50HZ 15000 RPM, JWH WITH PUMP 240V, NON...
ConditionUsed
MLS Number965992
Last Updated5/11/2023
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Cummins 100 KVA Generator
80 0

2021 Cummins 100 KVA Generator

$35,995 USD
**Details**, - Comes with by Buyer Guarantee ++, - Ask us for the videos and 50+ additional photos ++, - Recent full inspection by certified mechanic inquire for a copy ++ **Inspection...
ConditionUsed
Usage30 Hours
MLS Number11695371
Last Updated1/12/2023
Location
Los Angeles, CA, US
Sold By

Boom and Bucket

Featured Item
PECO 0YTT1-101655-501 Diesel Generator
82 0

2013 PECO 0YTT1-101655-501 Diesel Generator

$25,995 USD
**Details**, - Comes with by Buyer Guarantee ++, - Ask us for the videos and 50+ additional photos ++, - Recent full inspection by certified mechanic inquire for a copy ++ **Inspection...
ConditionUsed
Usage13,502 Hours
Horse Power116 HP
Engine ModelCummins 4BTA3.9 - 4CYL. - 116HP - 3.9L Diesel
MLS Number11700335
Last Updated12/30/2022
Location
Los Angeles, CA, US
Sold By

Boom and Bucket

Featured Item
2006 Aggretech Marelli Deutz Diesel Generator Genset 3-Cylinder Diesel Air-Cooled Standby Generator
10 0

2006 Aggretech Marelli Deutz Diesel Generator Genset 3-Cylinder Diesel Air-Cooled Standby Generator

$5,999.99 USD
(LIKE NEW) 2006 AGGRETECH MARELLI DEUTZ DIESEL GENERATOR SET, DEUTZ 3-CYLINDER, AIR-COOLED ENGINE, TYPE: F3M 2011, ESN: 10295406, 19.4KW @ 1500RPM, AGGRETECH GENERATOR, TYPE: D20SH, 20KW, SN...
ConditionUsed
Usage100 Hours
Engine ModelDeutz F3M2011
Capacity20 KW Diesel Generator
Stock Number218683
MLS Number10722026
Last Updated5/15/2023
Location
Rockwood, TN, US
Sold By

Machinery and Truck Parts

Featured Item
Caterpillar G3406TA Generator
1 0

2012 Caterpillar G3406TA Generator

Call for price
ConditionUsed
Usage9,985 Hours
Stock NumberRP11315
MLS Number10875205
Last Updated5/11/2023
Location
Midland, OK, US
Sold By

Warren Power Systems

Featured Item
Caterpillar WC215G Generator
8 0

2013 Caterpillar WC215G Generator

Call for price
60 HZ, AUTO START, CAT BRAND GENSET, CE PLATE, CONTINUOUS, EPA LABEL, GENERATORS, NATURAL GAS, PRIME, STANDBY,
ConditionUsed
Usage275 Hours
Stock NumberRP13741
MLS Number10875030
Last Updated5/11/2023
Location
Midland, TX, US
Sold By

Warren Power Systems

2009 Kohler 60REOZJC 60kW Skid-Mounted Generator Standby 3 Phase Diesel
12 0

2009 Kohler 60REOZJC 60kW Skid-Mounted Generator Standby 3 Phase Diesel

Newly Listed
$10,000 USD
Features  Electric Start  HZ, Amp, Volts, Hour Meter gauges ...
ConditionUsed
MLS Number12097687
Last Updated6/2/2023
Location
Frankfort, NY, US
Sold By

bidadoo Inc.

2018 Allmand MP40 Towable 31kW Generator 39kVA Genset Trailer Kubota
12 0

2018 Allmand MP40 Towable 31kW Generator 39kVA Genset Trailer Kubota

Newly Listed
At auction May. 27
Features Trailer Mounted Adjustable Trailer Hitch ...
ConditionUsed
MLS Number12097678
Last Updated6/2/2023
Location
Albuquerque, NM, US
Listed By

bidadoo Inc.

2015 Generac MMG25IF4 S/A Towable 23kW Generator 29kVA Genset -Parts/Repair
12 0

2015 Generac MMG25IF4 S/A Towable 23kW Generator 29kVA Genset -Parts/Repair

Newly Listed
At auction May. 27
Features Trailer Mounted Tongue Jack HZ,...
ConditionUsed
MLS Number12097633
Last Updated6/2/2023
Location
Knoxville, TN, US
Listed By

bidadoo Inc.

2021 Multiquip GAW-180HEA Portable AC/DC Welder Generator 3kW Genset
12 0

2021 Multiquip GAW-180HEA Portable AC/DC Welder Generator 3kW Genset

Newly Listed
At auction May. 27
Features Arc force control allows the operator to fine tune DC current Ideal for...
ConditionUsed
MLS Number12097610
Last Updated6/2/2023
Location
Chattanooga, TN, US
Listed By

bidadoo Inc.

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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