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 (1627)
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1-25 of 1,627 results
1-25 of 1,627 results
Featured Item
Generator 20 KW 2013 Multiquip Single / 3 Ph 120 / 240 / 480V Trailer Mounted MQ
18 1

Generator 20 KW 2013 Multiquip Single / 3 Ph 120 / 240 / 480V Trailer Mounted MQ

Price Reduced
$21,500 USD
Generator 20 KW 2013 Multiquip Single / 3 Ph 120 / 240 / 480V Trailer Mounted MQ EASY BUSINESS FINANCING AVAILABLE!* Please call Gary with any questions or to discuss any additional details...
ConditionUsed
Usage4,444 Hours
Stock NumberTC0423794123DS215
MLS Number12017068
CategoryGenerator Sets
Last Updated6/20/2024
Location
Orem, UT, US
Sold By

Global Remarketing

Featured Item
Caterpillar XQ570 Diesel Generator
12 1

2021 Caterpillar XQ570 Diesel Generator

$269,900 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 Updated6/14/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
450kW Scania Trailer Mounted Diesel Generator Package
10 0

2024 450kW Scania Trailer Mounted Diesel Generator Package

$243,353 USD
Beautiful Custom Scania Diesel Genset, Ready to add to your Rental fleet. Meticulously manufactured Genset. Built around Scania's DC16 V8 Tier 4 Final engine - able to meet emission...
Warranty
Quantity4
ConditionNew
Usage5 Hours
Horse Power600 HP
Engine ModelScania DC16 084A
Emission RatingTier 4 Final
L x W312 x 96
Weight23,000lbs
Stock Number24271
MLS Number12920419
CategoryGenerator Sets
Last Updated6/7/2024
Location
Red Deer, AB, Canada
Sold By

Collicutt Energy Services

Featured Item
Cummins 250DQAB Diesel Generator
12 1

1999 Cummins 250DQAB Diesel Generator

$59,900 USD
Used Cummins 250 kW standby (225 kW prime) rental grade diesel generator set model DQAB, SN-H990965864. Cummins M11-G2 engine rated 380 HP at 1800 RPM, SN-34968845. 3/60/277/480V or 3/60/120...
ConditionUsed
Usage2,522 Hours
Horse Power380 HP
Engine ModelCummins M11-G2
Rear AxleTri Axle
Stock NumberCentral States #4453
MLS Number12690006
CategoryGenerator Sets
Last Updated5/28/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

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 Updated6/12/2024
Location
Fort Myers, FL, US
Sold By

Pantropic Power

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 Updated5/28/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Featured Item
Caterpillar XQ500 Mobile Power Module Generator Set
8 0

2006 Caterpillar XQ500 Mobile Power Module Generator Set

$379,000 USD
Engine Governor, Fire Extinguisher, Online Owner's Manual, Package Type Dealer Packaged Unit,
Inspection Report
ConditionUsed
Usage250 Hours
MLS Number12472296
CategoryGenerator Sets
Last Updated6/12/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3456 Generator
6 0

2007 Caterpillar 3456 Generator

$165,000 USD
Auto Start, Package Type Cat Standard Unit,
ConditionUsed
Usage1,200 Hours
MLS Number12482842
CategoryGenerator Sets
Last Updated6/12/2024
Location
Fort Myers, FL, US
Sold By

Pantropic Power

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 Updated6/12/2024
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar C9 Diesel Generator
12 1

2011 Caterpillar C9 Diesel Generator

$69,900 USD
Used Caterpillar 300 kW standby (270 kW prime) diesel generator set, SN-C9E02559. CAT C9 engine rated 480 HP at 1800 RPM, SN-S9L03833, EPA Tier 3 emissions. 3/60/120/208V, 12 lead...
ConditionUsed
Usage140 Hours
Horse Power436 HP
Engine ModelCaterpillar C9
Emission RatingUSA Tier 3
Stock NumberCentral States #4459
MLS Number12730468
CategoryGenerator Sets
Last Updated5/28/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

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 Updated6/13/2024
Location
Middleton, WI, US
Sold By

NORTHWESTERN STONE LLC

Trailer Mounted Portable Generators
31 0

Trailer Mounted Portable Generators

Newly Listed
At auction Jun. 26
GovDeals Auction #24329 Ending 7/5-8, To see full auction details and the current bid, CLICK HERE:https://govdeals.bid/4ciaPGu **Price reflects the current bid and is subject to change at...
Lot Number24329
ConditionUsed
Stock Number24329
MLS Number12956707
CategoryGenerator Sets
Last Updated6/26/2024
Location
Rice, MN, US
Listed By

GovDeals, Inc.

Caterpillar Cat 3306 diesel
10 0

Caterpillar Cat 3306 diesel

Newly Listed
At auction Jul. 9
Caterpillar Cat 3306 diesel, skid mtd (Not Running, Condition Unknown) (Cranks with Jump) (Reads 3,770 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in...
ConditionUsed
Usage3,770 Hours
Stock NumberHP70F
MLS Number12956638
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hawk Point, MO, US
Listed By

JJ Kane Auctions

Ironton 4000W Portable Generator (Condition Unknown)
6 0

Ironton 4000W Portable Generator (Condition Unknown)

Newly Listed
At auction Jul. 9
Ironton 4000W Portable Generator (Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Hutto, TX. For more information removal arrangements...
ConditionUsed
Stock Number39550
MLS Number12956631
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hutto, TX, US
Listed By

JJ Kane Auctions

Craftsman 3500W Portable Generator (Condition Unknown)
6 0

Craftsman 3500W Portable Generator (Condition Unknown)

Newly Listed
At auction Jul. 9
Craftsman 3500W Portable Generator (Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Hutto, TX. For more information removal arrangements...
ConditionUsed
Stock Number39549
MLS Number12956630
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hutto, TX, US
Listed By

JJ Kane Auctions

Generac XG8000G
10 0

Generac XG8000G

Newly Listed
At auction Jul. 9
Generac XG8000G, Portable Generator (Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Hutto, TX. For more information removal arrangements...
ConditionUsed
Stock Number39547
MLS Number12956629
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hutto, TX, US
Listed By

JJ Kane Auctions

Generator
7 0

Generator

Newly Listed
At auction Jul. 9
Generator, Husky 3600 Portable Generator (Needs Repair, Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Hutto, TX. For more information ...
ConditionUsed
Stock Number39546
MLS Number12956628
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hutto, TX, US
Listed By

JJ Kane Auctions

1988 Pelsue Metro 4 STRETCH Generator/Air Ventilation Pump
18 0

1988 Pelsue Metro 4 STRETCH Generator/Air Ventilation Pump

Newly Listed
At auction Jul. 10
1988 Pelsue Metro 4 STRETCH Generator/Air Ventilation Pump, s/n 0100376667P000588, Ford (Not Running, Condition Unknown, No battery) (Reads 3,869 hours) NOTE: This unit is being sold AS...
ConditionUsed
Usage3,869 Hours
Stock NumberHP763
MLS Number12956497
CategoryGenerator Sets
Last Updated6/26/2024
Location
Hawk Point, MO, US
Listed By

JJ Kane Auctions

Power Systems & Controls 65KW - Portable Power Center - Back-up Generator
20 0

Power Systems & Controls 65KW - Portable Power Center - Back-up Generator

Newly Listed
At auction Jun. 26
GovDeals Auction #6973-440 Ending 7/01, To see full auction details and the current bid, CLICK HERE:https://govdeals.bid/3L0LN2L **Price reflects the current bid and is subject to change...
Lot Number6973-440
ConditionUsed
Stock Number6973-440
MLS Number12955910
CategoryGenerator Sets
Last Updated6/26/2024
Location
Brookfield, OH, US
Listed By

GovDeals, Inc.

Cummins C200D6D Diesel Generator
11 0

2024 Cummins C200D6D Diesel Generator

Newly Listed
$64,900 USD
New Cummins 200 kW standby (180 kW prime) diesel generator set, model C200D6D, SN-F240347065. Cummins QSB7-G5 NR3 engine rated 324 HP at 1800 RPM, SN-22667334, EPA Tier 3 emissions. 3/60/277...
ConditionNew
Horse Power324 HP
Engine ModelCummins QSB7-G5
Emission RatingUSA Tier 3
Stock NumberCentral States #3748
MLS Number12955469
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Cummins C200D6D Diesel Generator
11 0

2024 Cummins C200D6D Diesel Generator

Newly Listed
$64,900 USD
New Cummins 200 kW standby (180 kW prime) diesel generator set, model C200D6D, SN-F240347064. Cummins QSB7-G5 NR3 engine rated 324 HP at 1800 RPM, SN-F240347064, EPA Tier 3 emissions....
ConditionNew
Horse Power324 HP
Engine ModelCummins QSB7-G5
Emission RatingUSA Tier 3
Stock NumberCentral States #3749
MLS Number12955465
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

BLUE STAR PD200-1 Diesel Generator
11 0

2022 BLUE STAR PD200-1 Diesel Generator

Newly Listed
$49,900 USD
Blue Star Power Systems / Perkins 200 kW standby (180 kW prime) diesel generator set model PD200-1, SN-117681-1-1. Perkins 1106D-E70TAG5 engine rated 314 HP at 1800 RPM, SN-PW83059B593699G,...
ConditionUsed
Usage330 Hours
Horse Power314 HP
Engine ModelPerkins 1106D-E70TAG5
Emission RatingUSA Tier 3
Stock NumberCentral States #4518
MLS Number12955340
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Kohler 125REOZJD Diesel Generator
10 0

2009 Kohler 125REOZJD Diesel Generator

Newly Listed
$29,900 USD
Kohler 125 kW standby (110 kW prime) diesel generator set, model 125REOZJD, SN-2242903. John Deere 6068HF285 engine rated 197 HP at 1800 RPM, EPA Tier 3 emissions SN-PE6068L077300....
ConditionUsed
Usage311 Hours
Horse Power197 HP
Engine ModelJohn Deere 6068HF285
Emission RatingUSA Tier 3
Stock NumberCentral States #4519
MLS Number12955332
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Olympian D125P1 Diesel Generator
11 0

2002 Olympian D125P1 Diesel Generator

Newly Listed
$24,900 USD
Caterpillar / Olympian 125 kW standby (114 kW prime) diesel generator set model D125P1, SN-NAT00405. Perkins engine rated 212 HP at 1800 RPM, SN-U786576J. 3/60/120/208V, 12 lead...
ConditionUsed
Usage585 Hours
Horse Power212 HP
Engine ModelPerkins ND722999
Stock NumberCentral States #4520
MLS Number12955325
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Cummins C100D6C Diesel Generator
11 0

2024 Cummins C100D6C Diesel Generator

Recently Updated
$42,900 USD
New Cummins 100 kW standby (90 kW prime) diesel generator set, model C100D6C, SN-F240347492. Cummins QSB5-G13 NR3 engine rated 173 HP at 1800 RPM, SN-22640453, EPA Tier 3 emissions. 3/60/277...
ConditionNew
Horse Power173 HP
Engine ModelCummins QSB5-G13 NR3
Emission RatingUSA Tier 3
Stock NumberCentral States #3744
MLS Number12744119
CategoryGenerator Sets
Last Updated6/26/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

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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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