Generator Sets For Sale

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

Search 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 near you today.
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 1,948 Generator Listings

1 - 25 of 1,948 listings
1 - 25 of 1,948 listings
Featured Item
Caterpillar 3512 Generator

1986 Caterpillar 3512 Generator

$145,748.99 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
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump to Start) (Reads 168 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage168 Hours
Stock NumberCM089
MLS Number14137678
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 231 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage231 Hours
Stock NumberCM073
MLS Number14137677
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 177 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage177 Hours
Stock NumberCM084
MLS Number14137676
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 146 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage146 Hours
Stock NumberCM077
MLS Number14137675
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 481 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage481 Hours
Stock NumberCM072
MLS Number14137674
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 315 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage315 Hours
Stock NumberCM083
MLS Number14137673
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 232 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage232 Hours
Stock NumberCM081
MLS Number14137672
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 309 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage309 Hours
Stock NumberCM071
MLS Number14137671
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump to Start) (Reads 277 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage277 Hours
Stock NumberCM087
MLS Number14137670
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 214 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage214 Hours
Stock NumberCM076
MLS Number14137669
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
CK Power CK5-5H Generator

CK Power CK5-5H Generator

Newly Listed
At auction Feb. 11
CK Power CK5-5H Generator, Kohler diesel, with 5000 watt output, electric starter, (Runs, Jump To Start) (Reads 293 hours) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Usage293 Hours
Stock NumberCM080
MLS Number14137668
CategoryGenerator Sets
Last Updated2/11/2026
Location
Charlotte, MI, US
Listed By
JJ Kane Auctions
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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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