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 (1705)
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1-25 of 1,705 results
1-25 of 1,705 results
Featured Item
Caterpillar G-3412CLE / Ariel JGJ-4 Two Stage Unit
4 0

Caterpillar G-3412CLE / Ariel JGJ-4 Two Stage Unit

Newly Listed
$75,000 USD
This piece of equipment is being sold through an online auction. The posted price in no way reflects a starting bid, reserve price or any expectation of price from the bank. BANK OWNED...
ConditionUsed
MLS Number12976529
CategoryGenerator Sets
Last Updated7/9/2024
Location
Johns Creek, GA, US
Sold By

Bullseye Auction & Appraisal, LLC

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 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 Updated7/3/2024
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 Updated7/3/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3512 Generator
1 0

1986 Caterpillar 3512 Generator

$278,490.29 USD
Online Owner's Manual, Package Type Dealer Packaged Unit,
ConditionUsed
Usage1,500 Hours
Stock NumberE220008M
MLS Number11814956
CategoryGenerator Sets
Last Updated7/2/2024
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

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 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
CategoryGenerator Sets
Last Updated7/3/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ60 Generator
9 0

2013 Caterpillar XQ60 Generator

$39,500 USD
Online Owner's Manual,
ConditionUsed
Usage7,786 Hours
Stock Number028393
MLS Number12278072
CategoryGenerator Sets
Last Updated7/3/2024
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 Updated7/3/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar D30-8 Generator
8 0

2006 Caterpillar D30-8 Generator

$11,500 USD
Auto Start, Cat Brand Genset, Circuit Breaker - 3 Pole, Control Panel - EMCP 4.2, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater, Permanent Magnet Generator (PMG),...
ConditionUsed
Usage2 Hours
MLS Number12666109
CategoryGenerator Sets
Last Updated7/3/2024
Location
Saint Augustine, FL, US
Sold By

Ring Power - Power Systems Division

Featured Item
Caterpillar SR4B Generator
6 0

2001 Caterpillar SR4B Generator

$10,000 USD
Online Owner's Manual,
ConditionUsed
Stock NumberEPU10903
MLS Number10145186
CategoryGenerator Sets
Last Updated7/2/2024
Location
Indianapolis, IN, US
Sold By

MacAllister Machinery

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

Caterpillar XQ35KVA Generator
4 0

2020 Caterpillar XQ35KVA Generator

Recently Updated
$41,300 USD
2020 CAT XQ35KVA, DIESEL FUEL 30KW GENSET, KS TAG 180340, Online Owner's Manual, VIN# 7KUBB1219LJ089655,
ConditionUsed
Usage2,642 Hours
Stock NumberVER006
MLS Number12769349
CategoryGenerator Sets
Last Updated7/13/2024
Location
Topeka Area, KS, US
Sold By

Foley Equipment

Airman GENSET 60 Generator
9 0

2020 Airman GENSET 60 Generator

Recently Updated
$51,000 USD
ConditionUsed
Usage1,935 Hours
Stock NumberCRS21-750
MLS Number12147296
CategoryGenerator Sets
Last Updated7/13/2024
Location
Vacaville, CA, US
Sold By

Holt of California

Caterpillar XQ35KVA Generator
4 0

2021 Caterpillar XQ35KVA Generator

Recently Updated
$22,800 USD
*CERTIFICATION AR, *CONNECTION GP, *CONNECTION GP G, *END USE: EP RETAIL RENTAL, *ENGINE AR PRIME, *GENERAL AR, *GENERATOR ARPWR, *HEATER GP JW BSC, *OPTIONAL ANTICONDENSATION HEA,...
ConditionUsed
Usage6,618 Hours
Stock NumberUEN093
MLS Number12769340
CategoryGenerator Sets
Last Updated7/13/2024
Location
Kansas City, MO, US
Sold By

Foley Equipment

Caterpillar XQ200 Generator
4 0

2015 Caterpillar XQ200 Generator

Recently Updated
$126,000 USD
*###GEN SET TEST CHG @ 0.8 PF##, *END USE: PWR MOD/XQ, *ENGINE AR - PRIME, *ENGLISH PAPER PARTS LIST, *GENERAL AR, *GENERATOR AR - XQ200 RENTAL PK, *GENERATOR AR-PWR, *GENERATOR TEST REPORT,...
ConditionUsed
Usage8,143 Hours
Stock NumberHEN044
MLS Number11824655
CategoryGenerator Sets
Last Updated7/13/2024
Location
Topeka Area, KS, US
Sold By

Foley Equipment

Caterpillar C6.6 Diesel Generator
12 1

2013 Caterpillar C6.6 Diesel Generator

Recently Updated
$39,900 USD
Caterpillar 150 kW standby (135 kW prime) diesel generator set model D150-8, SN-LC600133. CAT C6.6 engine rated 230 HP at 1800 RPM, SN-E6L00767, EPA Tier 3 emissions. 3/60/277/480V, 12 lead...
ConditionUsed
Usage215 Hours
Horse Power230 HP
Engine ModelCaterpillar C6.6
Emission RatingUSA Tier 3
Stock NumberCentral States #4516
MLS Number12944038
CategoryGenerator Sets
Last Updated7/12/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Caterpillar XQ 1250 Generator
8 0

2001 Caterpillar XQ 1250 Generator

Newly Listed
$549,000 USD
3 Way Fuel Valve, Auto Start, Battery Charger, Camlocks, Earth Leakage Detection, Engine Governor, Engine Type - Diesel, Fire Extinguisher, Frequency, Fuel Tank Type - Dual Wall, Package...
ConditionUsed
Usage270 Hours
MLS Number12983844
CategoryGenerator Sets
Last Updated7/12/2024
Location
Fort Myers, FL, US
Sold By

Pantropic Power

Caterpillar APS100 Generator
1 0

2014 Caterpillar APS100 Generator

Recently Updated
$82,500 USD
100KW STANDBY, 2014 CAT APS100 PORTABLE, 480V,208V THREE PHASE OR 240V, EMCP4.2 CONTROL PANEL, GENERATOR SET, Online Owner's Manual, SINGLE PHASE, TIER 4I C4.4 ENGINE, ZERO HOUR REFURB BY...
ConditionUsed
Usage1 Hours
Stock NumberXEU0023
MLS Number12931551
CategoryGenerator Sets
Last Updated7/12/2024
Location
Wichita, KS, US
Sold By

Foley Equipment

Multiquip DCA70SSIU Diesel Generator
12 1

2016 Multiquip DCA70SSIU Diesel Generator

Recently Updated
$35,900 USD
MQ Power Multquip Whisperwatt 62 kW standby (56 kW prime) rental grade diesel generator set, model DCA-70SSJU4i, SN-7306744. John Deere 4045HFG92 engine rated 107 HP at 1800 RPM,...
ConditionUsed
Usage6,593 Hours
Horse Power107 HP
Engine ModelJohn Deere 4045HFG92
Emission RatingUSA Tier 4 Final
Stock NumberCentral States #4174
MLS Number12657814
CategoryGenerator Sets
Last Updated7/12/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Onan DGCA-3374152 Generator
8 0

1999 Onan DGCA-3374152 Generator

Newly Listed
$19,500 USD
1999 Onan Cummins Generator Set, 50KW, 240V, Cummins 4B3T 107 HP diesel engine. City removed it after test run afraid residents would smell exhaust, go figure. 56 HOURS.
ConditionUsed
Usage56 Hours
Stock NumberTOT0JIiJ669946
MLS Number12983742
CategoryGenerator Sets
Last Updated7/12/2024
Location
Juneau, WI, US
Sold By

Proxy Equipment

Dayton Generator
6 0

2001 Dayton Generator

Newly Listed
$4,500 USD
2001 Dayton 10KW Standby Generator, 109 hours, Propane fuel, Mitsubishi engine, 4 cly, 1.5L, Solid state ignition. Runs well.
ConditionUsed
Usage109 Hours
Stock NumberTOT0qyeG727680
MLS Number12983740
CategoryGenerator Sets
Last Updated7/12/2024
Location
Juneau, WI, US
Sold By

Proxy Equipment

Detroit 12V92 Generator
7 0

2003 Detroit 12V92 Generator

Newly Listed
$19,500 USD
2003 Detroit Diesel 12V92 Engine, 750 HP base, 6,770 hours, air starter, originally connected to pump, ideal for genset.
ConditionUsed
Usage6,770 Hours
Stock NumberTOT0fiup364844
MLS Number12983733
CategoryGenerator Sets
Last Updated7/12/2024
Location
Juneau, WI, US
Sold By

Proxy Equipment

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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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