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 $200 to $12,345,678. 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 1,957 Generator Listings

1 - 25 of 1,957 listings
1 - 25 of 1,957 listings
Featured Item
Generator 20 KW 2016 Multiquip Diesel Portable Trailer Mounted 3 Ph 120 / 240/ 480V NON DEF!

Generator 20 KW 2016 Multiquip Diesel Portable Trailer Mounted 3 Ph 120 / 240/ 480V NON DEF!

Newly Listed
$16,500 USD
Generator 20 KW 2016 Multiquip Diesel Portable Trailer Mounted 3 Ph 120v 240v 480v NON DEF! NOW OFFERING EASY BUSINESS FINANCING! WE TAKE TRADES!! Please call Gary with any questions or to...
ConditionUsed
Usage4,946 Hours
Stock NumberBC0426576100DS165
MLS Number14312454
CategoryGenerator Sets
Last Updated4/16/2026
Location
Orem, UT, US
Sold By
Global Remarketing
Featured Item
Caterpillar 3406 Generator

1981 Caterpillar 3406 Generator

$24,500 USD
Auto Start, Battery Charger, Battery Set, Cat Brand Genset, Circuit Breaker, Control Panel - Other, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater, No Enclosure,...
ConditionUsed
Usage447 Hours
Stock NumberEU00183
MLS Number14099064
CategoryGenerator Sets
Last Updated4/15/2026
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 Updated4/15/2026
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 Updated4/15/2026
Location
Eugene, OR, US
Sold By
Peterson Power Systems
Featured Item
Caterpillar XQ0350 Generator

2014 Caterpillar XQ0350 Generator

$155,000 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
Usage5,491 Hours
Stock NumberUE01157
MLS Number11077982
CategoryGenerator Sets
Last Updated4/15/2026
Location
Eugene, OR, US
Sold By
Peterson Power Systems
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 Updated4/15/2026
Location
Miami, FL, US
Sold By
Pantropic Power
Caterpillar XQ200 Generator

2014 Caterpillar XQ200 Generator

Recently Updated
$126,000 USD
200 KW STANDBY, CAT C7.1 ENGINE, CAT XQ200 T4I PORTABLE, Control Panel - EMCP 4.2, GENERATOR SET, MULTI- VOLTAGE, NEED A KS VIN INSPCT TO FLEETADD, Online Owner's Manual, TRAILER VIN...
ConditionUsed
Usage89 Hours
Stock NumberYEU0019
MLS Number13973071
CategoryGenerator Sets
Last Updated4/17/2026
Location
Dodge City, KS, US
Sold By
Foley Equipment
Caterpillar XQ200 Generator

2015 Caterpillar XQ200 Generator

Recently Updated
$126,000 USD
200 KW STANDBY, CAT C7.1 ENGINE, CAT XQ200 T4I PORTABLE, Control Panel - EMCP 4.2, GENERATOR SET, MULTI- VOLTAGE, NEED A KS VIN INSPCT TO FLEETADD, Online Owner's Manual, TRAILER VIN...
ConditionUsed
Usage786 Hours
Stock NumberYEU0018
MLS Number13973070
CategoryGenerator Sets
Last Updated4/17/2026
Location
Call Foley, MO, US
Sold By
Foley Equipment
Caterpillar XQ60 Generator

2018 Caterpillar XQ60 Generator

Newly Listed
$21,900 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
Usage5,872 Hours
Stock NumberREN010
MLS Number14316818
CategoryGenerator Sets
Last Updated4/17/2026
Location
Kansas City, MO, US
Sold By
Foley Equipment
Mtu DS180 Diesel Generator Set W/ John Deere 6068 Engine

Mtu DS180 Diesel Generator Set W/ John Deere 6068 Engine

Newly Listed
At auction Apr. 29
Mtu DS180 Diesel Generator Set W/ John Deere 6068 Engine, 1,488 hrs showing, 6.8L 6 Cyl Turbo Diesel Engine, Marathon 432PSL6210 Synchronous Generator, 180 kW Standby Rating, 350 kVA...
ConditionUsed
Stock NumberLV0785
MLS Number14316685
CategoryGenerator Sets
Last Updated4/17/2026
Location
Okemah, OK, US
Listed By
BigIron 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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