Generator Sets For Sale

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

Explore marketplace listings for new and used Generator Sets on MyLittleSalesman.com, with prices from $200 to $1,599,900. Filter by hours, price, or year to refine by spec.
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 1,923 Generator Listings

1 - 25 of 1,923 listings
1 - 25 of 1,923 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
Caterpillar XQ230 T4F Generator

2021 Caterpillar XQ230 T4F Generator

Recently Updated
$107,500 USD
110% Spill Containment, Battery Charger, Battery Disconnect Switch, Camlocks, Cat Brand Genset, Customer Value Agreement (CVA) 2-year/2,000-hour Customer Value Agreement (CVA), Engine Type -...
ConditionUsed
Usage5,799 Hours
Stock NumberRP15243
MLS Number14368757
CategoryGenerator Sets
Last Updated5/21/2026
Location
Midland, TX, US
Sold By
Warren Power Systems
2007 MQ Power Whisperwatt 87KW Towable Generator

2007 MQ Power Whisperwatt 87KW Towable Generator

Recently Updated
At auction May. 27
Location Washougal WA ***End-User Consignment*** VIN: 5SLBG17247L002242 Engine: John Deere 6068HF285 6.8L 6cyl Diesel 87 KW, 150 KVA, 69 gallon fuel tank capacity, ball hitch, stabilizer,...
Lot NumberTEMP3753
ConditionUsed
Engine ModelDeere
Stock Number97101
MLS Number14363171
CategoryGenerator Sets
Last Updated5/21/2026
Location
Washougal, WA, US
Listed By
J Stout Auctions
2017 Multiquip DCA45SSIU4F 36kW Towable Generator

2017 Multiquip DCA45SSIU4F 36kW Towable Generator

Recently Updated
At auction May. 27
Location Kalispell MT ***Rental Industry Consignment*** VIN: 5SLBG1225HL020399 Engine: Isuzu 4LE2X 2.2L 4cyl Diesel 36 kW, 79 gallon fuel capacity, pintle hitch, stabilizer, ST205/75D14...
Lot NumberTEMP3750
ConditionUsed
Engine ModelIsuzu 4LE2X
Stock Number97060
MLS Number14361656
CategoryGenerator Sets
Last Updated5/21/2026
Location
Kalispell, MT, US
Listed By
J Stout Auctions
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.

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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