Generator Sets For Sale

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

Explore new and used Generator Sets on MyLittleSalesman.com, with prices from $500 to $1,999,900. Use filters for hours, price, or year to narrow by what matters.
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 1,668 Generator Listings

1 - 25 of 1,668 listings
1 - 25 of 1,668 listings
2004 Multi-Quip DCA-25SSIU Portable Generator

2004 Multi-Quip DCA-25SSIU Portable Generator

Newly Listed
At auction Nov. 18
2004 Multi-Quip DCA-25SSIU Portable Generator, s/n 7100964, Isuzu Diesel, (Reads 17,425 Engine Hours) (Non Titled) (Runs) (Seller States: windings in generator shorted) NOTE: This unit is...
ConditionUsed
Usage17,425 Hours
Stock NumberL1192
MLS Number14742367
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
Honda Generator s/n 6A01-1298919

Honda Generator s/n 6A01-1298919

Newly Listed
At auction Nov. 18
Honda Generator s/n 6A01-1298919, ES - 6500 generator 120V, no battery/does not run NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Las Vegas, NV. Inspection...
ConditionUsed
Stock NumberLV162
MLS Number14742359
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
"Honda EW171 generator (120V/240V). (Seller States “Fuel Line Broken”)

"Honda EW171 generator (120V/240V). (Seller States “Fuel Line Broken”)

Newly Listed
At auction Nov. 18
"Honda EW171 generator (120V/240V). (Seller States “Fuel Line Broken”) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Las Vegas, NV. Inspection preview...
ConditionUsed
Stock NumberLV165
MLS Number14742358
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
"Makita G5500R Generator (120V/240V)

"Makita G5500R Generator (120V/240V)

Newly Listed
At auction Nov. 18
"Makita G5500R Generator (120V/240V), 60 Hz, Seller States “pull start, does not run; needs new wheels and tires " NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is...
ConditionUsed
Stock NumberLV164
MLS Number14742357
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
s/n EA1-1125423

s/n EA1-1125423

Newly Listed
At auction Nov. 18
s/n EA1-1125423, "Honda EX - 5500Generator (120V/240V), 60 Hz, gasoline powered, key start only; does not run, no battery " NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and...
ConditionUsed
Stock NumberLV163
MLS Number14742356
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
s/n GA01-1302839

s/n GA01-1302839

Newly Listed
At auction Nov. 18
s/n GA01-1302839, "Honda ES - 6500 generator (120V/240V) 60 Hz, Electric start, gasoline powered, has battery and functional key " NOTE: This unit is being sold AS IS/WHERE IS via Timed...
ConditionUsed
Stock NumberLV167
MLS Number14742355
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
Honda EB - 5000x generator

Honda EB - 5000x generator

Newly Listed
At auction Nov. 18
Honda EB - 5000x generator NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Las Vegas, NV. Inspection preview days for this unit are the 2 business days...
ConditionUsed
Stock NumberLV166
MLS Number14742354
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
2005 ONAN GGFD-5732193 Generator

2005 ONAN GGFD-5732193 Generator

Newly Listed
At auction Nov. 18
2005 ONAN GGFD-5732193 Generator, s/n F050793747, Ford ESG642 CNG, 35kW (Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in Las Vegas, NV....
ConditionUsed
Stock NumberL1164
MLS Number14742343
CategoryGenerator Sets
Last Updated11/11/2026
Location
Las Vegas, NV, US
Listed By
JJ Kane Auctions
2003 Caterpillar Enclosed Portable Generator

2003 Caterpillar Enclosed Portable Generator

Newly Listed
At auction Nov. 24
2003 Caterpillar Enclosed Portable Generator, s/n 6YR02909, Cat 3306 Diesel, with 3 Phase, 480 Volts, (Reads 1,000 Engine Hours) (Non-Titled) (Seller States: Ran Before Removed For City...
ConditionUsed
Usage1,000 Hours
MLS Number14741827
CategoryGenerator Sets
Last Updated11/11/2026
Location
North Venice, FL, US
Listed By
JJ Kane Auctions
Generac GP17500E Generator

Generac GP17500E Generator

Newly Listed
At auction Nov. 24
Generac GP17500E Generator, s/n 5560801, Gas, (Reads 31 Engine Hours) (Not Running, Condition Unknown) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in...
ConditionUsed
Usage31 Hours
Stock NumberF1259
MLS Number14741784
CategoryGenerator Sets
Last Updated11/11/2026
Location
Thonotosassa, FL, US
Listed By
JJ Kane Auctions
Wacker Neuson Generator G70 58kW Portable Generator

Wacker Neuson Generator G70 58kW Portable Generator

Newly Listed
At auction Nov. 13
Wacker Neuson Generator G70 58kW Portable Generator, s/n WNCGMM01HPUM01279, Kohler Diesel, (Reads 4,707 Engine Hours) (Non Titled) (Condition Unknown) (Engine Performance Concerns-Runs ...
ConditionUsed
Usage4,707 Hours
Stock NumberRN173
MLS Number14741546
CategoryGenerator Sets
Last Updated11/11/2026
Location
Rome, NY, US
Listed By
JJ Kane Auctions
2010 Wacker Neuson E300 ES Duel Reeled Hydronic Surface Heater

2010 Wacker Neuson E300 ES Duel Reeled Hydronic Surface Heater

Newly Listed
At auction Nov. 13
2010 Wacker Neuson E300 ES Duel Reeled Hydronic Surface Heater, s/n 4386, 3-cyl Diesel, (Reads 4,609 Engine Hours) (Non Titled) (Not Running, Condition Unknown) (Removal is by Appointment...
ConditionUsed
Usage4,609 Hours
Stock NumberHM516
MLS Number14741194
CategoryGenerator Sets
Last Updated11/11/2026
Location
Harmans, MD, US
Listed By
JJ Kane Auctions
Caterpillar XQ100 Generator

2012 Caterpillar XQ100 Generator

Recently Updated
Contact for price
110% Spill Containment, 3 Way Fuel Valve, Auto Start, Battery Charger, Battery Disconnect Switch, Cat Brand Genset, Coolant Heater, Emissions Level, Engine Type - Diesel, Fire Extinguisher,...
ConditionUsed
Stock NumberEU00192
MLS Number14475704
CategoryGenerator Sets
Last Updated11/11/2026
Location
Knoxville, TN, US
Sold By
Stowers Power Systems
Caterpillar XQ 1250 Generator

1990 Caterpillar XQ 1250 Generator

Price Drop $400,000 USD
Auto Start, Battery Charger, Camlocks, Engine Governor, Engine Type - Diesel, Frequency - 60 Hz, Fuel Tank Type - Dual Wall, Generator, Hitch, Trailer, Permanent Magnet Generator (PMG),...
Inspection Report
ConditionUsed
Usage1,200 Hours
MLS Number12860676
CategoryGenerator Sets
Last Updated11/11/2026
Location
Fort Myers, FL, US
Sold By
Pantropic Power

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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