Generator Sets For Sale

New or Used Generators (Gen Set) by Owners and Dealers

Shop new and used Generator Sets on MyLittleSalesman.com, with prices from $500 to $1,450,000. Filter by hours, price, or year to find the right Generator closest to you.
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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Showing 1 - 25 of 1,918 Generator Listings

1 - 25 of 1,918 listings
1 - 25 of 1,918 listings
Featured Item
Caterpillar 3512 Generator

1986 Caterpillar 3512 Generator

$146,006.93 USD
3 POLE CIRCUIT BREAKER, 60 HZ, AUTO START, CAT BRAND GENSET, CSA CERTIFICATION, DIESEL, EMCP 4.2 CONTROL PANEL, NO ENCLOSURE, Online Owner's Manual, Package Type Dealer Packaged Unit,...
ConditionUsed
Usage1,500 Hours
Stock NumberE220008M
MLS Number11814956
CategoryGenerator Sets
Last Updated2/9/2026
Location
Pointe-Claire, QC, Canada
Sold By
Toromont Power Systems
Featured Item
2023 GENERAC G-25 TRAILER MOUNTED 25KW GENERATOR - ISUZU DIESEL - ONLY 3,000 HOURS - LIKE NEW

2023 GENERAC G-25 TRAILER MOUNTED 25KW GENERATOR - ISUZU DIESEL - ONLY 3,000 HOURS - LIKE NEW

$13,500 USD
PRO-QUIPLLC.COM CALL 954-367-3867 2023 GENERAC MDG25IF4 25KW TRAILER MOUNTED GENERATOR 3 PHASE ISUZU TURBO DIESEL ONLY 3,034 HOURS STILL LIKE NEW 100% RUST FREE AND IMMACULATE FRESH...
ConditionUsed
Usage3,034 Hours
Horse Power49 HP
Engine ModelIsuzu 2.2
Weight2771
Stock Number25 KW - ISUZU TURBO DIESEL - 3 PHASE
MLS Number14021856
CategoryGenerator Sets
Last Updated1/21/2026
Location
Pompano Beach, FL, US
Sold By
Pro Quip
Featured Item
Multiquip DCA150 Generator

2014 Multiquip DCA150 Generator

$45,000 USD
110% Spill Containment, Auto Start, Battery Charger, Battery Disconnect Switch, Camlocks, Emissions Level, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type - Dual Wall, Generator,...
ConditionUsed
Usage5,147 Hours
Stock NumberE16389
MLS Number13725278
CategoryGenerator Sets
Last Updated2/9/2026
Location
West Columbia, SC, US
Sold By
Blanchard Power Systems
Featured Item
Caterpillar XQ 350 (120-480 V) 350@1800/3/SBY EKW@RPM/PH/R Generator

2014 Caterpillar XQ 350 (120-480 V) 350@1800/3/SBY EKW@RPM/PH/R Generator

$110,000 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
Usage6,727 Hours
Stock NumberNR12802
MLS Number13305187
CategoryGenerator Sets
Last Updated2/9/2026
Location
Eugene, OR, US
Sold By
Peterson Power Systems
Featured Item
Caterpillar XQ2000 Mobile Power Module Generator Set

2023 Caterpillar XQ2000 Mobile Power Module Generator Set

$1,200,000 USD
3 Way Fuel Valve, Auto Start, Battery Charger, Camlocks, CE Plate, Emissions Level, Engine Governor, Engine Type - Diesel, Fire Extinguisher, Frequency - 50 / 60 Hz, Fuel Tank Type - Dual...
Inspection Report
ConditionUsed
MLS Number12860680
CategoryGenerator Sets
Last Updated2/9/2026
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

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 Updated2/9/2026
Location
Miami, FL, US
Sold By
Pantropic Power
Cummins GGHE Natural Gas Generator

2004 Cummins GGHE Natural Gas Generator

Price Drop $12,900 USD
Cummins 60 kW standby natural gas generator model GGHE, SN-I040689994. Ford WSG-1068 engine rated 97.5 HP at 1800 RPM, SN-04US30164. 3/60/277/480V, 12 lead reconnectable to other voltages....
ConditionUsed
Usage804 Hours
Horse Power98 HP
Engine ModelFord WSG1068
Stock NumberCentral States #4923
MLS Number14081981
CategoryGenerator Sets
Last Updated2/10/2026
Location
Waukesha, WI, US
Sold By
Central States Diesel Generators
Cummins DSHAD Diesel Generator

2026 Cummins DSHAD Diesel Generator

Recently Updated
$65,900 USD
***ETA April 1, 2026*** New Cummins 230 kW standby (209 kW prime) diesel generator set, model DSHAD. Cummins QSL9-G2 NR3 engine rated 364 HP at 1800 RPM, EPA Tier 3 emissions. 3/60/277/480V...
ConditionUsed
Horse Power364 HP
Engine ModelCummins QSL9-G2 NR3
Emission RatingUSA Tier 3
Stock NumberCentral States #4281
MLS Number13975523
CategoryGenerator Sets
Last Updated2/10/2026
Location
Waukesha, WI, US
Sold By
Central States Diesel Generators
Cummins C125D6C Diesel Generator

2026 Cummins C125D6C Diesel Generator

Recently Updated
$49,900 USD
*****ETA Feb 27, 2026***** New Cummins 125 kW standby (112.5 kW prime) diesel generator set, model C125D6C. Cummins QSB5-G6 NR3 engine rated 208 HP at 1800 RPM, EPA Tier 3 emissions....
ConditionNew
Horse Power208 HP
Engine ModelCummins QSB5-G6
Emission RatingUSA Tier 3
Stock NumberCentral States #4870
MLS Number13957907
CategoryGenerator Sets
Last Updated2/10/2026
Location
Waukesha, WI, US
Sold By
Central States Diesel Generators
Caterpillar XQ425 T4F Generator

2018 Caterpillar XQ425 T4F Generator

Price Drop $107,000 USD
110% Spill Containment, Battery Charger, Battery Disconnect Switch, Camlocks, Cat Brand Genset, Emissions Level - EPA - EPA TIER 4f, Engine Governor, Engine Type - Diesel, Frequency - 50 /...
ConditionUsed
Usage9,315 Hours
Stock NumberRP14091
MLS Number13850303
CategoryGenerator Sets
Last Updated2/10/2026
Location
Tulsa, OK, US
Sold By
Warren Power Systems
Cummins 2500 KW Diesel Generator

2025 Cummins 2500 KW Diesel Generator

Recently Updated
$1,349,900 USD
New Cummins 2500 kW standby (2250 kW prime) diesel generator set model DQKAN, SN-E250449528. Cummins QSK60-G19 NR2 engine rated 3640 HP at 1800 RPM, SN-33238429, EPA Tier 2 emissions....
ConditionNew
Horse Power3640 HP
Engine ModelCummins QSK60-G19 NR2
Emission RatingUSA Tier 2
Stock NumberCentral States #4334
MLS Number13675903
CategoryGenerator Sets
Last Updated2/10/2026
Location
Waukesha, WI, US
Sold By
Central States Diesel Generators
Cummins DQCB Diesel Generator

2025 Cummins DQCB Diesel Generator

Recently Updated
$259,900 USD
New Cummins 750 kW standby (680 kW prime) diesel generator set, model DQCB, SN-F250460260. Cummins QSK23-G7 engine rated 1220 HP at 1800 RPM, SN-85022830, EPA Tier 2 emissions. 3/60/277/480V...
ConditionNew
Horse Power1220 HP
Engine ModelCummins QSK23-G7 NR2
Emission RatingUSA Tier 2
Stock NumberCentral States #4301
MLS Number13657688
CategoryGenerator Sets
Last Updated2/10/2026
Location
Waukesha, WI, US
Sold By
Central States Diesel Generators
2013 Multiquip DCA70 Generator

2013 Multiquip DCA70 Generator

Price Drop $19,500 USD
2013 Multiquip DCA-70 Generator Towable 70KVA/56KW Genset Isuzu Diesel 97hp, Model#DCA-70SSIU2 T/A, reading 6541 hours, frequency 60hz, Phase Single/3, Voltage 120/240/480, stock# A-957...
ConditionUsed
Usage6,541 Hours
Stock NumberA-957
MLS Number12069643
CategoryGenerator Sets
Last Updated2/9/2026
Location
Salt Lake City, UT, US
Sold By
Equipment Sales, Inc.
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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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