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 1,858 results
1-25 of 1,858 results
Featured Item
Caterpillar XQ200 Generator
4 0

2014 Caterpillar XQ200 Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage7,540 Hours
Stock Number028220
MLS Number12272001
CategoryGenerator Sets
Last Updated2/24/2025
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ30 Generator
11 0

2015 Caterpillar XQ30 Generator

$18,762 USD
CATERPILLAR XQ30 GENERATOR, Horsepower 49.0 hp, Online Owner's Manual, TRAILER VIN #16MBB1311FG072685,
Inspection Report
ConditionUsed
Usage18,961 Hours
Stock NumberUE01350
MLS Number12165367
CategoryGenerator Sets
Last Updated2/24/2025
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar 3512 Generator
13 0

1998 Caterpillar 3512 Generator

$327,503.31 USD
60 HZ, AUTO START, CAT BRAND GENSET, DIESEL, Online Owner's Manual, STANDBY,
ConditionUsed
Usage671 Hours
Stock NumberE210009A
MLS Number10860410
CategoryGenerator Sets
Last Updated2/24/2025
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

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 Updated2/24/2025
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 Updated2/24/2025
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar G20F3 Generator
4 0

2009 Caterpillar G20F3 Generator

$3,500 USD
ConditionUsed
Usage7 Hours
Stock NumberEQ027801
MLS Number12641755
CategoryGenerator Sets
Last Updated2/24/2025
Location
Milford, MA, US
Sold By

Milton CAT Power Systems

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 Updated2/24/2025
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar XQ 35 Generator
1 0

2023 Caterpillar XQ 35 Generator

$44,750 USD
110% Spill Containment, Cat Brand Genset, Emissions Level - EPA - EPA TIER 4f, Engine Governor, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type - Dual Wall, Generator, Hitch, Trailer...
ConditionUsed
Usage2 Hours
Stock NumberRP15612
MLS Number13174651
CategoryGenerator Sets
Last Updated2/24/2025
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ 1750 Generator
6 0

2000 Caterpillar XQ 1750 Generator

$685,000 USD
Package Type Dealer Packaged Unit,
ConditionUsed
Usage300 Hours
MLS Number12472297
CategoryGenerator Sets
Last Updated2/24/2025
Location
Fort Myers, FL, US
Sold By

Pantropic Power

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 Updated2/24/2025
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 Updated2/24/2025
Location
Miami, FL, US
Sold By

Pantropic Power

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 Updated2/24/2025
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Yamaha EF6600DE Generator
9 0

Yamaha EF6600DE Generator

Newly Listed
At auction Mar. 12
Yamaha EF6600DE Generator, (Not Running, Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Smock, PA. For pre-sale questions, please contact...
ConditionUsed
Stock NumberSP772
MLS Number13419579
CategoryGenerator Sets
Last Updated2/26/2025
Location
Smock, PA, US
Listed By

JJ Kane Auctions

50RZ282 Generator
11 0

50RZ282 Generator

Newly Listed
At auction Mar. 1
KOHLER SKID MOUNTED GENERATOR, 3-PHASE, 8 CYL, FORD ENGINE, HZ:50, 55.00KW, 69.00KVA, HOUR METER READS: 606
ConditionUsed
Stock Number510798
MLS Number13419330
CategoryGenerator Sets
Last Updated2/26/2025
Location
Enigma, GA, US
Listed By

Jeff Martin Auctioneers

s/n 7254191
23 0

2020 s/n 7254191

Newly Listed
At auction Mar. 19
s/n 7254191, 2020 Multi-Quip DH-04801 Enclosed Portable Generator, 4-cyl gas, diesel, (Runs, Moves Operates) (Reads 8,581 hours) This is a Titled Item NOTE: This unit is being sold AS...
ConditionUsed
Usage8,581 Hours
Stock NumberR0352
MLS Number13419202
CategoryGenerator Sets
Last Updated2/26/2025
Location
McCarran, NV, US
Listed By

JJ Kane Auctions

Honda EU 3000 Generator
6 0

Honda EU 3000 Generator

Newly Listed
At auction Mar. 6
Honda EU 3000 Generator NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Jurupa Valley, CA. For more information removal arrangements please contact Office...
ConditionUsed
Stock NumberK1694
MLS Number13418903
CategoryGenerator Sets
Last Updated2/26/2025
Location
Jurupa Valley, CA, US
Listed By

JJ Kane Auctions

Honda Generator (Used )
8 0

Honda Generator (Used )

Newly Listed
At auction Mar. 6
Honda Generator (Used ) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Jurupa Valley, CA. For more information removal arrangements please contact Office...
ConditionUsed
Stock NumberK1693
MLS Number13418902
CategoryGenerator Sets
Last Updated2/26/2025
Location
Jurupa Valley, CA, US
Listed By

JJ Kane Auctions

Champion Generator (Used )
7 0

Champion Generator (Used )

Newly Listed
At auction Mar. 6
Champion Generator (Used ) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Jurupa Valley, CA. For more information removal arrangements please contact...
ConditionUsed
Stock NumberK1696
MLS Number13418901
CategoryGenerator Sets
Last Updated2/26/2025
Location
Jurupa Valley, CA, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Runs) (Reads 327 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie, TX. For pre-sale...
ConditionUsed
Usage327 Hours
Stock NumberWT821
MLS Number13418598
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Not Running, Condition Unknown ) (Reads 323 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie...
ConditionUsed
Usage323 Hours
Stock NumberWT820
MLS Number13418597
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
7 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Runs) (Reads 502 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie, TX. For pre-sale...
ConditionUsed
Usage502 Hours
Stock NumberWT819
MLS Number13418596
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Not Running, Condition Unknown ) (Reads 158 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie...
ConditionUsed
Usage158 Hours
Stock NumberWT818
MLS Number13418595
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Not Running, Condition Unknown) (Reads 336 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie,...
ConditionUsed
Usage336 Hours
Stock NumberWT817
MLS Number13418594
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Not Running, Condition Unknown ) (Reads 261 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie...
ConditionUsed
Usage261 Hours
Stock NumberWT816
MLS Number13418592
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

Pramac S5500 Portable Generator
6 0

Pramac S5500 Portable Generator

Newly Listed
At auction Mar. 5
Pramac S5500 Portable Generator, Yanmar Diesel (Runs ) (Reads 263 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Waxahachie, TX. For pre-sale...
ConditionUsed
Usage263 Hours
Stock NumberWT815
MLS Number13418591
CategoryGenerator Sets
Last Updated2/26/2025
Location
Waxahachie, TX, US
Listed By

JJ Kane Auctions

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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