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 1,646 results
Featured Item
Caterpillar XQ60 Generator
4 0

2020 Caterpillar XQ60 Generator

Price Reduced
$30,000 USD
Remaining Factory Warranty 60 MONTHS/6000 HR PLATINUM ESC, INC DPF - EXP 11/20/25,
ConditionUsed
Usage5,201 Hours
Stock NumberER60KV15
MLS Number12772040
Last Updated5/20/2024
Location
New Stanton, PA, US
Sold By

Cleveland Brothers Equipment

Featured Item
Caterpillar C 2.2T Generator
2 0

2023 Caterpillar C 2.2T Generator

Recently Updated
$29,500 USD
Auto Start, Battery Charger, Cat Brand Genset, Circuit Breaker,
ConditionUsed
MLS Number12362371
Last Updated5/23/2024
Location
Jacksonville, FL, US
Sold By

Ring Power Corporation

Featured Item
Caterpillar 3516B Generator
2 0

2023 Caterpillar 3516B Generator

Recently Updated
$515,500 USD
50 HZ, AUTO START, CAT BRAND GENSET, DIESEL, EMCP 4.2B CONTROL PANEL, GENERATORS, JACKET WATER HEATER, Online Owner's Manual, PERMANENT MAGNET GENERATOR, Rebuild Cat Certified Rebuild ,...
ConditionUsed
MLS Number11640890
Last Updated5/23/2024
Location
St. Augustine, FL, US
Sold By

Ring Power Corporation

Featured Item
2005 Caterpillar XQ600 Generator
4 0

2005 Caterpillar XQ600 Generator

$215,000 USD
RETIREMENT SALE, EXCELLENT CATERPILLAR 600 KW GENERATOR SET. Used to power aggregate crushing spread. Service and load tested by Milton Cat. All records available. Well cared for and in top...
ConditionUsed
Usage6,455 Hours
MLS Number12148249
Last Updated4/21/2024
Location
Syracuse, US
Sold By

Granite Mining LLC

Featured Item
Olympian G25UH1 Generator
11 0

1999 Olympian G25UH1 Generator

Call for price
ConditionUsed
Usage287 Hours
Stock NumberEU00141
MLS Number12740074
Last Updated5/21/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
8 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$89,500 USD
Online Owner's Manual,
ConditionUsed
Usage13,810 Hours
Stock Number028452
MLS Number12271996
Last Updated5/21/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ60 Generator
8 0

2022 Caterpillar XQ60 Generator

$68,500 USD
60 HZ, BATTERY CHARGER, DIESEL, FUEL TANK, GENERATORS, MULTI-VOLTAGE, Online Owner's Manual, Package Type Cat Standard Unit, PRIME, Protection Full Factory Warranty,
ConditionUsed
Stock NumberINV264
MLS Number11992294
Last Updated5/21/2024
Location
Jackson, MS, US
Sold By

Puckett Machinery

Featured Item
Caterpillar XQ60 Generator
7 0

2021 Caterpillar XQ60 Generator

$24,500 USD
Auto Start, Cat Brand Genset, Engine Type - Diesel, Generator, Hitch, Trailer, Online Owner's Manual, Trailer Mounted, Transportability,
ConditionUsed
Usage5,780 Hours
Stock Number23-658
MLS Number12575624
Last Updated5/21/2024
Location
Henderson, NV, US
Sold By

Cashman Power Solutions

Featured Item
Caterpillar SR4B Generator
6 0

2001 Caterpillar SR4B Generator

$10,000 USD
Online Owner's Manual,
ConditionUsed
Stock NumberEPU10903
MLS Number10145186
Last Updated5/20/2024
Location
Indianapolis, IN, US
Sold By

MacAllister Machinery

Featured Item
Caterpillar G3406TA Generator
1 0

2012 Caterpillar G3406TA Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage9,985 Hours
Stock NumberRP11315
MLS Number10875205
Last Updated5/21/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Generator 176 KW Tier 4 Final 2015 MultiQuip 3 Phase 240/480 Volt DCA-220SSJU4F John Deere Diesel Portable
24 1

Generator 176 KW Tier 4 Final 2015 MultiQuip 3 Phase 240/480 Volt DCA-220SSJU4F John Deere Diesel Portable

$58,000 USD
Generator 176 KW Tier 4 Final 2015 MultiQuip 3 Phase 240/480 Volt DCA-220SSJU4F John Deere Diesel Portable BUSINESS FINANCING AVAILABLE!* Please call Gary with any questions or to discuss...
ConditionUsed
Usage14,644 Hours
Stock NumberTC1222455300DS580
MLS Number11768923
Last Updated5/13/2024
Location
Orem, UT, US
Sold By

Global Remarketing

Featured Item
500KW TOWABLE GENERATOR
5 0

500KW TOWABLE GENERATOR

$35,000 USD
500KW Towable generator enclosed mounted on 40’ step deck trailer with 500 gallon fuel tank TITLE IN HAND 12V92TA DETROIT DIESEL ENGINE 277/480V or 120/208V Connectable 2 Identical Units in...
Quantity2
ConditionUsed
Engine ModelDetroit
L x W40 x 8
Weight40,000.00
MLS Number12647673
Last Updated2/28/2024
Location
Shepherd, TX, US
Sold By

Svenco Sales LLC

Featured Item
2023 Isuzu 4JB1 Generator
1 0

2023 Isuzu 4JB1 Generator

Call for price
Isuzu 4JB1 Generator .Please call for more details.
Quantity3
ConditionNew
MLS Number12560513
Last Updated5/14/2024
Location
Eads, TN, US
Sold By

GXP Diesel

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
Last Updated5/8/2024
Location
Middleton, WI, US
Sold By

NORTHWESTERN STONE LLC

Caterpillar 3406 Generator
11 0

1983 Caterpillar 3406 Generator

Newly Listed
Call for price
260KW STANDBY/210KW PRIME CAT, 3406DITA; CAT SR-4(10-WIRE),, RADIATOR; CAT ANALOG CONTROL, PANEL, BREAKER, 1442 HRS SINCE, NEW, NO ENCLOSURE; NO FUEL, TANK BASE; CAT HYDRAMECHANICAL,...
ConditionUsed
Usage1,442 Hours
Stock NumberEE21476
MLS Number12889130
Last Updated5/23/2024
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Caterpillar 3412 Generator
5 0

1992 Caterpillar 3412 Generator

Newly Listed
$74,000 USD
600KW STANDBY/545KW PRIME CAT, 3412, 1000 HRS SINCE NEW IN, 1992; CAT SR-4 SN 81Z15869;, CAT DIGITAL CONTROL PANEL, EMCP; GOVERNOR; INSTALLED, RADIATOR; BREAKER (1000 AMP);, ELECTRIC START;...
ConditionUsed
Usage1,000 Hours
Stock NumberEE21493
MLS Number12889054
Last Updated5/23/2024
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Multiquip DCA40SSI Diesel Generator
8 0

Multiquip DCA40SSI Diesel Generator

Newly Listed
Call for price
MultiQuip DCA-40SSI Generator - Trailer, Isuzu, Diesel, 55.2 HP, 3-Phase, Standby Output: 47.7 kVA, Prime Output: 45kVA, Voltage: 240V or 480V, Frequency: 60Hz. Needs work. (NOTE: AVAILABLE...
ConditionUsed
Horse Power55 HP
MLS Number12889023
Last Updated5/23/2024
Location
Fontana, CA, US
Sold By

ReQuip

2009 Kohler 2000REOZMB Generator
11 0

2009 Kohler 2000REOZMB Generator

Newly Listed
$449,900 USD
Kohler 2000 kW standby (1820 kW prime) diesel generator set, model 2000REOZMB, SN-2272714. Mitsubishi S16R-Y2PTAW2-1 engine rated 2923 HP at 1800 RPM, SN-14859, EPA Tier 2 emissions....
ConditionUsed
Usage1,200 Hours
MLS Number12888680
Last Updated5/23/2024
Location
Van Buren Charter Township, MI, US
Sold By

Construction Station LLC

Caterpillar XQ570 Diesel Generator
12 0

2021 Caterpillar XQ570 Diesel Generator

Recently Updated
$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
Last Updated5/23/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Caterpillar 3412C Generator
7 0

2001 Caterpillar 3412C Generator

Recently Updated
$129,000 USD
750KW STANDBY/680KW PRIME CAT, 3412 1705 HRS SINCE NEW IN 2001, CAT SR-4 (FRAME596PM 12 WIRE), SN BCW00382, 480V, CAT DIGITAL, CONTROL PANEL EMCP II+, CAT ELECTRONIC GOVERNOR, INSTALLED...
ConditionUsed
Usage1,705 Hours
Stock NumberEE21382
MLS Number12648794
Last Updated5/23/2024
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

1995 Libby MEP-802A Towable Generator
26 0

1995 Libby MEP-802A Towable Generator

Newly Listed
At auction Jun. 25
Location: Washougal WA ***End-User Consignment*** S/N: RZB-04180 Engine: Diesel 5KW, 120/208/240 Volts, 1PH/3PH, 52/26/17 Amps, 60Hz, mounted on Libby M116A3 single axle carrier, pintle...
Lot NumberTEMP3750
ConditionUsed
Usage655 Hours
Engine ModelDiesel
Stock Number63756
MLS Number12888128
Last Updated5/23/2024
Location
Washougal, WA, US
Listed By

J Stout Auctions

Caterpillar WC1365 DGB Generator
14 0

2015 Caterpillar WC1365 DGB Generator

Recently Updated
Call for price
ConditionUsed
Usage2,231 Hours
Stock NumberRP14349
MLS Number12628399
Last Updated5/23/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Caterpillar XQ350 Mobile Power Module Generator Set
3 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

Recently Updated
Call for price
Online Owner's Manual,
ConditionUsed
Usage5,810 Hours
Stock NumberRP12548
MLS Number12624120
Last Updated5/23/2024
Location
San Angelo, TX, US
Sold By

Warren Power Systems

Caterpillar XQ200N Generator
2 0

2017 Caterpillar XQ200N Generator

Recently Updated
Call for price
ConditionUsed
Usage10,979 Hours
Stock NumberRP13954
MLS Number12624096
Last Updated5/23/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Caterpillar XQ200 Generator
1 0

2013 Caterpillar XQ200 Generator

Recently Updated
$69,500 USD
ConditionUsed
Usage5,674 Hours
Stock NumberRP12526
MLS Number12624094
Last Updated5/23/2024
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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