Generator Sets For Sale

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

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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Generator Sets (1681)
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1-25 of 1,681 results
1-25 of 1,681 results
Featured Item
Caterpillar G-3412CLE / Ariel JGJ-4 Two Stage Unit
4 0

Caterpillar G-3412CLE / Ariel JGJ-4 Two Stage Unit

Newly Listed
$75,000 USD
This piece of equipment is being sold through an online auction. The posted price in no way reflects a starting bid, reserve price or any expectation of price from the bank. BANK OWNED...
ConditionUsed
MLS Number12976529
CategoryGenerator Sets
Last Updated7/9/2024
Location
Johns Creek, GA, US
Sold By

Bullseye Auction & Appraisal, LLC

Featured Item
Caterpillar XQ 1250 Generator
1 0

1990 Caterpillar XQ 1250 Generator

$489,000 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
Usage670 Hours
MLS Number12860676
CategoryGenerator Sets
Last Updated6/12/2024
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
6 0

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 Updated7/3/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3516 Generator
7 0

2023 Caterpillar 3516 Generator

$489,000 USD
** ENGINE WARRANTY BY MFG, 1825KW PRIME RATING 480V 60HZ 1800RPM - 1600KW PRIME RATING 400V 50HZ 15000 RPM, 60 HZ, CAT BRAND GENSET, DIESEL, EMCP 3.2 CONTROL PANEL - JACKET WATER HEATER,...
ConditionUsed
MLS Number965992
CategoryGenerator Sets
Last Updated7/3/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3512 Generator
1 0

1986 Caterpillar 3512 Generator

$279,329.61 USD
Online Owner's Manual, Package Type Dealer Packaged Unit,
ConditionUsed
Usage1,500 Hours
Stock NumberE220008M
MLS Number11814956
CategoryGenerator Sets
Last Updated7/2/2024
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

Featured Item
Caterpillar XQ500 Mobile Power Module Generator Set
8 0

2006 Caterpillar XQ500 Mobile Power Module Generator Set

$379,000 USD
Engine Governor, Fire Extinguisher, Online Owner's Manual, Package Type Dealer Packaged Unit,
Inspection Report
ConditionUsed
Usage250 Hours
MLS Number12472296
CategoryGenerator Sets
Last Updated6/12/2024
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3456 Generator
6 0

2007 Caterpillar 3456 Generator

$165,000 USD
Auto Start, Package Type Cat Standard Unit,
ConditionUsed
Usage1,200 Hours
MLS Number12482842
CategoryGenerator Sets
Last Updated6/12/2024
Location
Fort Myers, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
12 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$145,500 USD
CATERPILLAR XQ350 GENERATOR, Online Owner's Manual, SKID MOUNTED,
Inspection Report
ConditionUsed
Usage1,845 Hours
Stock NumberUE01271
MLS Number11379738
CategoryGenerator Sets
Last Updated6/12/2024
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar XQ350 Mobile Power Module Generator Set
8 0

2013 Caterpillar XQ350 Mobile Power Module Generator Set

$89,500 USD
Online Owner's Manual,
ConditionUsed
Usage13,810 Hours
Stock Number028452
MLS Number12271996
CategoryGenerator Sets
Last Updated7/3/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ60 Generator
9 0

2013 Caterpillar XQ60 Generator

$39,500 USD
Online Owner's Manual,
ConditionUsed
Usage7,786 Hours
Stock Number028393
MLS Number12278072
CategoryGenerator Sets
Last Updated7/3/2024
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar G045F3S Generator
14 0

2007 Caterpillar G045F3S Generator

$14,500 USD
60 HZ, AUTO START, GENERATOR, GENERATORS, NATURAL GAS, OLYMPIAN BRAND GENSET, Online Owner's Manual, SKID MOUNTED CAT/OLYMPIAN 2007, STANDBY,
Inspection Report
ConditionUsed
Usage181 Hours
Stock NumberUE01328
MLS Number11379916
CategoryGenerator Sets
Last Updated7/3/2024
Location
Eugene, OR, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar D30-8 Generator
8 0

2006 Caterpillar D30-8 Generator

$11,500 USD
Auto Start, Cat Brand Genset, Circuit Breaker - 3 Pole, Control Panel - EMCP 4.2, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater, Permanent Magnet Generator (PMG),...
ConditionUsed
Usage2 Hours
MLS Number12666109
CategoryGenerator Sets
Last Updated7/3/2024
Location
Saint Augustine, FL, US
Sold By

Ring Power - Power Systems Division

Featured Item
Caterpillar SR4B Generator
6 0

2001 Caterpillar SR4B Generator

$10,000 USD
Online Owner's Manual,
ConditionUsed
Stock NumberEPU10903
MLS Number10145186
CategoryGenerator Sets
Last Updated7/2/2024
Location
Indianapolis, IN, US
Sold By

MacAllister Machinery

Featured Item
Cummins KT19 500KW GeneratorSet
27 0

Cummins KT19 500KW GeneratorSet

$78,500 USD
Complete Ready to go!, Cummins Genset, Gen Set w/switch Gear, Min Circuit Breaker Panel, bulk oil tanks, baskets under trailer,, Rectifier for 110 Volt in 531 Tandem axle Fruehauf Van...
ConditionUsed
Usage12,365 Hours
MLS Number11862078
CategoryGenerator Sets
Last Updated6/13/2024
Location
Middleton, WI, US
Sold By

NORTHWESTERN STONE LLC

Multiquip DCA45SS Generator
5 0

2023 Multiquip DCA45SS Generator

Newly Listed
$49,950 USD
ISUZU TIER 4F, TRAILER DCA36-45SS ELEC, COUPLER 3 PINTLE,
ConditionNew
Usage8 Hours
Stock NumberEE20557
MLS Number12981899
CategoryGenerator Sets
Last Updated7/11/2024
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Multiquip DCA25SS Generator
6 0

2023 Multiquip DCA25SS Generator

Newly Listed
$23,750 USD
ISUZU TIER 4F, TRAILER 25US, COUPLER 3 PINTLE, CAMLOCK 1 SET,
ConditionUsed
Usage3,365 Hours
Stock NumberEE20538
MLS Number12981894
CategoryGenerator Sets
Last Updated7/11/2024
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Onan DFLC Diesel Generator
11 0

2000 Onan DFLC Diesel Generator

Recently Updated
$349,900 USD
**Completion ETA August 16,2024** Cummins 1250 kW standby (1100 kW prime) portable / trailered diesel generator set model DFLC, SN-E000108800. Cummins KTA50-G3 engine rated 1850 HP at 1800...
ConditionUsed
Usage1,297 Hours
Horse Power1850 HP
Engine ModelCummins KTA50-G3
Stock NumberCentral States #4413
MLS Number12933466
CategoryGenerator Sets
Last Updated7/11/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Cummins DGEA Diesel Generator
11 1

2001 Cummins DGEA Diesel Generator

Recently Updated
$23,900 USD
Cummins 125 kW standby (113 kW prime) diesel generator set model DGEA, SN-A010198853. Cummins 6CT8.3-G2 engine rated 207 HP at 1800 RPM, SN-46069211. 3/60/120/208V, 12 lead reconnectable to...
ConditionUsed
Usage934 Hours
Horse Power207 HP
Engine ModelCummins 6CT8.3-G2
Stock NumberCentral States #4512
MLS Number12928958
CategoryGenerator Sets
Last Updated7/11/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Cummins DGEA Diesel Generator
11 1

2000 Cummins DGEA Diesel Generator

Recently Updated
$23,900 USD
Cummins 125 kW standby (113 kW prime) diesel generator set model DGEA, SN-K000175145. Cummins 6CT8.3-G2 engine rated 207 HP at 1800 RPM, SN-46051032. 3/60/120/208V, 12 lead reconnectable to...
ConditionUsed
Usage748 Hours
Horse Power207 HP
Engine ModelCummins 6CT8.3-G2
Stock NumberCentral States #4511
MLS Number12928955
CategoryGenerator Sets
Last Updated7/11/2024
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

WANCO WSP220-R Diesel Generator
61 2

2020 WANCO WSP220-R Diesel Generator

Recently Updated
$111,495 USD
The 2020 Wanco WSP220-R is a towable diesel generator that can provide both single-phase and three-phase power. It is powered by a Perkins 1106D-E70TA 6-cylinder diesel engine and has a...
ConditionUsed
Usage253 Hours
Engine ModelPerkins 1106D-E70TA
Stock NumberA2527350
MLS Number12591372
CategoryGenerator Sets
Last Updated7/11/2024
Location
Fontana, CA, US
Sold By

Boom and Bucket

Atlas Copco Generator
32 0

2002 Atlas Copco Generator

Recently Updated
$11,900 USD
2002 ATLAS COPCO QAS78 JDS GENERATOR, John Deere 4045TF250B, 4.5L Diesel, 84 hp, 3987 Hours, 65kw, 3 Phase, 480/240/208, Trailer Mounted
ConditionUsed
Usage3,987 Hours
Stock NumberMJT0L3W061730
MLS Number12299282
CategoryGenerator Sets
Last Updated7/11/2024
Location
Louisville, KY, US
Sold By

Proxy Equipment

Caterpillar 3516B Generator
1 0

1997 Caterpillar 3516B Generator

Recently Updated
$32,672.62 USD
Online Owner's Manual,
ConditionUsed
Stock Number000000000010039327
MLS Number12860530
CategoryGenerator Sets
Last Updated7/11/2024
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Multiquip MQ180 T4F Generator
1 0

2018 Multiquip MQ180 T4F Generator

Recently Updated
Call for price
ConditionUsed
Usage8,808 Hours
Stock NumberRP14380
MLS Number12628396
CategoryGenerator Sets
Last Updated7/11/2024
Location
Abilene, TX, US
Sold By

Warren Power Systems

Caterpillar XQ200N Generator
2 0

2017 Caterpillar XQ200N Generator

Recently Updated
Call for price
ConditionUsed
Usage6,394 Hours
Stock NumberRP13955
MLS Number12628379
CategoryGenerator Sets
Last Updated7/11/2024
Location
Amarillo, TX, US
Sold By

Warren Power Systems

Caterpillar G3520H Generator
10 0

2018 Caterpillar G3520H Generator

Recently Updated
$1,947,956.48 USD
*** Standalone e-house and maintenance shed included with purchase of all four (4) units. ***, All electrical and mechanical drawings available, Auto Start, Automated air recirculation...
ConditionUsed
Usage16,000 Hours
Stock NumberC240008F
MLS Number12700200
CategoryGenerator Sets
Last Updated7/11/2024
Location
Kanata, ON, Canada
Sold By

Toromont Power Systems

Did you find what you were looking for? Yes No

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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