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 1,829 results
1-25 of 1,829 results
Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
5 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

Call for price
Online Owner's Manual,
ConditionUsed
Usage11,078 Hours
Stock NumberRP12547
MLS Number12624121
CategoryGenerator Sets
Last Updated9/21/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
4 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$90,000 USD
ConditionUsed
Usage12,091 Hours
Stock NumberRP12543
MLS Number12624109
CategoryGenerator Sets
Last Updated9/19/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar C32 Generator
7 0

2006 Caterpillar C32 Generator

$595,000 USD
Auto Start, Battery Charger, Battery Disconnect Switch, Coolant Heater, Engine Governor, Engine Type - Diesel, Fire Extinguisher, Frequency - 60 Hz, Fuel Tank Type - Single Wall, Generator,...
ConditionUsed
Usage1,740 Hours
Stock NumberUE2286
MLS Number12704038
CategoryGenerator Sets
Last Updated9/10/2024
Location
Albuquerque, NM, US
Sold By

Wagner Equipment Co.

Featured Item
Caterpillar 3516C-HD Generator
18 0

2010 Caterpillar 3516C-HD Generator

$425,000 USD
60 HZ, AUTO START, CAT BRAND GENSET, DIESEL, GENERATORS, Package Type Cat Standard Unit, PRIME, Rebuild Dealer Rebuild Overhaul Completed by North American CAT Dealer - Paperwork Available...
ConditionUsed
Usage3 Hours
Stock NumberUE05102
MLS Number11383747
CategoryGenerator Sets
Last Updated9/9/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar XQ0350 Generator
8 0

2014 Caterpillar XQ0350 Generator

$165,500 USD
110% SPILL CONTAINMENT, 3 WAY FUEL VALVE, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, CAT C13 ENGINE, CATERPILLAR XA350 TIER4I, CIRCUIT BREAKER, CEM,...
Inspection Report
ConditionUsed
Usage5,491 Hours
Stock NumberUE01157
MLS Number11077982
CategoryGenerator Sets
Last Updated9/9/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar 3516 DITA Generator
17 0

1999 Caterpillar 3516 DITA Generator

Call for price
3 POLE CIRCUIT BREAKER, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, COOLANT HEATER, DIESEL, FUEL TANK, Package Type Dealer Packaged Unit,
ConditionUsed
Usage310 Hours
Stock NumberE220008S
MLS Number12175244
CategoryGenerator Sets
Last Updated9/9/2024
Location
Brampton, ON, Canada
Sold By

Toromont Power Systems

Featured Item
Olympian G25UH1 Generator
11 0

1999 Olympian G25UH1 Generator

Call for price
ConditionUsed
Usage371 Hours
Stock NumberEU00141
MLS Number12740074
CategoryGenerator Sets
Last Updated9/9/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Olympian CAT G25LTA2 Generator
10 0

2016 Olympian CAT G25LTA2 Generator

$7,500 USD
ConditionUsed
Stock NumberP160065A
MLS Number9814029
CategoryGenerator Sets
Last Updated9/9/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ1475G Mobile Generator
6 0

2014 Caterpillar XQ1475G Mobile Generator

$887,377.06 USD
(480V), 60 HZ, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, JW HEATER, NATURAL GAS, Online Owner's Manual, TRAILER MOUNTED, TRANSPORTABILITY,
ConditionUsed
Usage12,160 Hours
MLS Number11822765
CategoryGenerator Sets
Last Updated9/9/2024
Location
Calgary, AB, Canada
Sold By

Finning Canada

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 Updated9/9/2024
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 Updated9/9/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3516 Generator
7 0

2023 Caterpillar 3516 Generator

$489,000 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 Updated9/9/2024
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 Updated9/9/2024
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 Updated9/9/2024
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar XQ200 Generator
4 0

2014 Caterpillar XQ200 Generator

$82,500 USD
Online Owner's Manual,
ConditionUsed
Usage7,540 Hours
Stock Number028220
MLS Number12272001
CategoryGenerator Sets
Last Updated9/9/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar G045F3S Generator
14 0

2007 Caterpillar G045F3S Generator

$14,500 USD
60 HZ, AUTO START, GENERATOR, GENERATORS, NATURAL GAS, OLYMPIAN BRAND GENSET, Online Owner's Manual, SKID MOUNTED CAT/OLYMPIAN 2007, STANDBY,
Inspection Report
ConditionUsed
Usage181 Hours
Stock NumberUE01328
MLS Number11379916
CategoryGenerator Sets
Last Updated9/9/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

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 Updated9/9/2024
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

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 Updated8/28/2024
Location
Middleton, WI, US
Sold By

NORTHWESTERN STONE LLC

Caterpillar XQ230KVA Generator
4 0

2023 Caterpillar XQ230KVA Generator

Recently Updated
$119,400 USD
*CERTIFICATION AR, *CONNECTION GP, *END USE: EP RETAIL RENTAL, *ENGINE ARPRIME, *GENERAL AR, *GENERATOR ARPWR, *MODULE AR DEF, *MODULE AR EXH, *TRAILER OPTION XQ230, *VOLTAGE INDICATOR...
ConditionUsed
Usage2,300 Hours
Stock NumberUEN235
MLS Number12656883
CategoryGenerator Sets
Last Updated9/29/2024
Location
Dodge City, KS, US
Sold By

Foley Equipment

Multiquip MQ125 Generator
2 0

2018 Multiquip MQ125 Generator

Recently Updated
Call for price
ConditionUsed
Usage5,788 Hours
Stock NumberRP15291
MLS Number12595489
CategoryGenerator Sets
Last Updated9/29/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Caterpillar XQ350 Mobile Power Module Generator Set
1 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

Recently Updated
Call for price
ConditionUsed
Usage10,816 Hours
Stock NumberRP12539
MLS Number12590948
CategoryGenerator Sets
Last Updated9/29/2024
Location
Midland, TX, US
Sold By

Warren Power Systems

Caterpillar XQ230KVA Generator
4 0

2023 Caterpillar XQ230KVA Generator

Recently Updated
$124,800 USD
*CERTIFICATION AR, *CONNECTION GP, *END USE: EP RETAIL RENTAL, *ENGINE ARPRIME, *GENERAL AR, *GENERATOR ARPWR, *MODULE AR DEF, *MODULE AR EXH, *TRAILER OPTION XQ230, *VOLTAGE INDICATOR...
ConditionUsed
Usage1,196 Hours
Stock NumberUEN234
MLS Number12656867
CategoryGenerator Sets
Last Updated9/29/2024
Location
Dodge City, KS, US
Sold By

Foley Equipment

Caterpillar XQ230 Generator
4 0

2020 Caterpillar XQ230 Generator

Recently Updated
$110,000 USD
Package Type Dealer Packaged Unit, Remaining Factory Warranty CAT* ESC thru 12/23 or 10k hrs,
ConditionUsed
Usage3,376 Hours
Stock NumberER230KV37
MLS Number12442137
CategoryGenerator Sets
Last Updated9/29/2024
Location
New Stanton, PA, US
Sold By

Cleveland Brothers Equipment

Caterpillar 3508SITA Generator
8 0

2011 Caterpillar 3508SITA Generator

Recently Updated
$174,223.81 USD
Online Owner's Manual,
ConditionUsed
Stock Number000000000010396437
MLS Number12860243
CategoryGenerator Sets
Last Updated9/29/2024
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Multiquip GENSET 70 Generator
5 0

2020 Multiquip GENSET 70 Generator

Recently Updated
$35,300 USD
ConditionUsed
Usage6,408 Hours
Stock NumberCRS20-101
MLS Number11877479
CategoryGenerator Sets
Last Updated9/29/2024
Location
Roseville, CA, US
Sold By

Holt of California

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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