Generator Sets For Sale

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

Review new and used Generator Sets on MyLittleSalesman.com, with prices from $200 to $1,599,900. Filter by hours, price, or year to filter by what fits your job.
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 1,929 Generator Listings

1 - 25 of 1,929 listings
1 - 25 of 1,929 listings
Featured Item
Caterpillar XQ125 T4F Generator

2019 Caterpillar XQ125 T4F Generator

$41,250 USD
110% Spill Containment, Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Customer Value Agreement (CVA) 2-year/2,000-hour Customer Value Agreement (CVA), Emissions Level - EPA -...
ConditionUsed
Usage6,694 Hours
Stock NumberRP14959
MLS Number13004413
CategoryGenerator Sets
Last Updated5/19/2026
Location
Abilene, TX, US
Sold By
Warren Power Systems
Featured Item
Caterpillar XQ-60 48KW Generator

2017 Caterpillar XQ-60 48KW Generator

$31,000 USD
110% SPILL CONTAINMENT, 3 WAY FUEL VALVE, 60 HZ, AUTO START, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, COOLANT HEATER, DIESEL, DUAL WALL FUEL TANK, EARTH LEAKAGE...
ConditionUsed
Usage6,800 Hours
Stock NumberEU00101
MLS Number12098435
CategoryGenerator Sets
Last Updated5/18/2026
Location
Knoxville, TN, US
Sold By
Stowers Power Systems
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 Updated5/18/2026
Location
West Columbia, SC, US
Sold By
Blanchard 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 Updated5/18/2026
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 Updated5/18/2026
Location
Miami, FL, US
Sold By
Pantropic Power
Multiquip DCA25SSI4F Generator

2023 Multiquip DCA25SSI4F Generator

Recently Updated
$29,500 USD
Contact for rental/lease prices
GENERATOR 20 KW DS MQ DCA25SSI4F W/TRAILER FOB: FLEET MAINTAINED - RECORDS AVAILABLE ON REQUEST, PRICE DOES NOT INCLUDE SALES TAX HOUR METER READING MAY VARY DUE TO ACTIVE INVENTORY, SOLD...
ConditionUsed
Usage1,731 Hours
Stock Number46-20004
MLS Number13031482
CategoryGenerator Sets
Last Updated5/21/2026
Location
Ketchikan, AK, US
Sold By
Tyler Rental Inc.
Multiquip DA7000SSA3 Generator

2023 Multiquip DA7000SSA3 Generator

Recently Updated
$16,500 USD
Contact for rental/lease prices
GENERATOR 7KW DSL MQ DA7000SSA3 W/TRAILER, FOB: FLEET MAINTAINED - RECORDS AVAILABLE ON REQUEST, PRICE DOES NOT INCLUDE SALES TAX HOUR METER READING MAY VARY DUE TO ACTIVE INVENTORY, SOLD...
ConditionUsed
Usage380 Hours
Stock Number46-70002
MLS Number13031464
CategoryGenerator Sets
Last Updated5/21/2026
Location
Juneau, AK, US
Sold By
Tyler Rental Inc.
Caterpillar XQ125KVA Generator

2019 Caterpillar XQ125KVA Generator

Recently Updated
$44,800 USD
125C TEMP RISE OVER 40C AMB, 3 PHASE NEMA LOCK RECEPTACLE, 3POLE CB, 480V 60 HZ (XQ125), 60 HZ 100 KW, 60HZ 480 VOLT (WYE), ALT SPACE HEATER, Base Type - Standard, BATTERY CHARGER UL10A...
ConditionUsed
Usage3,583 Hours
Stock NumberVER027
MLS Number13128020
CategoryGenerator Sets
Last Updated5/21/2026
Location
Call Foley, KS, US
Sold By
Foley Equipment
Caterpillar XQ60 Generator

2018 Caterpillar XQ60 Generator

Recently Updated
$21,800 USD
*208V 3 PHASE NEMA RECEPTABLES, *CAPTIVE: 4852409C3.4BPS102, *CERTIFICATION AR, *END USE: EP RENTAL, *GENERAL AR, *GENERATOR ARPWR, *OPTIONAL ANTICONDENSATION HEA, *OPTIONAL BATTERY CHARGER...
ConditionUsed
Usage6,280 Hours
Stock NumberREN013
MLS Number14367434
CategoryGenerator Sets
Last Updated5/21/2026
Location
Dodge City, KS, US
Sold By
Foley Equipment
2004 Generac SD040 Portable 40kW Industrial Diesel Generator

2004 Generac SD040 Portable 40kW Industrial Diesel Generator

Recently Updated
At auction May. 20
2004 Generac SD040 40kW Portable Industrial Diesel Generator, 1,539 hrs showing, Daewoo 3.3L 4-Cyl, Turbocharged Intercooled Diesel Engine, Power Output: 40KW, 120/208 1P/3P, 120/240 1P/3P,...
ConditionUsed
Stock NumberLS7053
MLS Number14355251
CategoryGenerator Sets
Last Updated5/21/2026
Location
Waterloo, NE, US
Listed By
BigIron Auctions
Onan Generator

2005 Onan Generator

Recently Updated
At auction Jun. 11
2005 Onan Generator Enclosed Portable Generator, John Deere Diesel, with pintle hitch, (Runs Operates) (Reads 322 hours) May be subject to ARB Regulations This is a Titled Item NOTE: This...
ConditionUsed
Usage322 Hours
MLS Number14354522
CategoryGenerator Sets
Last Updated5/21/2026
Location
Jurupa Valley, CA, US
Listed By
JJ Kane Auctions
2015 Heat King HK350 Portable Heating Unit

2015 Heat King HK350 Portable Heating Unit

Newly Listed
At auction Jun. 10
2015 Heat King HK350 Portable Heating Unit, s/n HK30802, with MQ Power 7kw Generator, Kubota Diesel, (No Title) (Generator Not Running, Bad Starter) NOTE: This unit is being sold AS IS/WHERE...
ConditionUsed
Stock NumberWM174
MLS Number14382649
CategoryGenerator Sets
Last Updated5/21/2026
Location
Wells, ME, US
Listed By
JJ Kane Auctions
Hesco Enclosed Portable Generator

Hesco Enclosed Portable Generator

Newly Listed
At auction Jun. 3
Hesco Enclosed Portable Generator, s/n 1RX301009R1073830, Submersible pump NOT included (Condition unknown) (Seller states: Does Not Operate) (Reads 656 hours) NOTE: This unit is being sold...
ConditionUsed
Usage656 Hours
Stock Number10110
MLS Number14382647
CategoryGenerator Sets
Last Updated5/21/2026
Location
Robstown, TX, US
Listed By
JJ Kane Auctions

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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