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.
Your Current Search
Industry
Industrial Equipment
Category
Generator Sets
Click the to remove the filter.
Narrow Your Search
Keyword Search
Search within the selected criteria
Industry
Industrial Equipment (1918)
Category
Generator Sets (1918)
Model
Select a manufacturer to view available models.
Model Year
-
Horsepower
-
Inspection Report
Warranty
Price
-
State / Region
Select a country to view available states.
1-25 of 1,918 results
1-25 of 1,918 results
Featured Item
2005 Caterpillar XQ-600 600KW 3412 Generator
3 0

2005 Caterpillar XQ-600 600KW 3412 Generator

$190,000 USD
LOAD TESTED AS WELL AS OIL AND COOLANT SAMPLES TAKEN BY CAT DEALER. RESULTS ARE AVAILABLE TO REVIEW. EXCELLENT CONDITION. CALL OR E-MAIL TO ARRANGE FOR INSPECTION. REASONABLE OFFERS WILL BE...
ConditionUsed
Usage6,455 Hours
MLS Number13366322
CategoryGenerator Sets
Last Updated5/19/2025
Location
Syracuse,
Sold By

Granite Mining LLC

Featured Item
CKG780TVM3 Generator
8 0

2023 CKG780TVM3 Generator

$240,000 USD
Auto Start, Battery Charger, Battery Disconnect Switch, Camlocks, Coolant Heater, Emissions Level, Engine Governor, Engine Type - Diesel, Fire Extinguisher, Frequency - 60 Hz, Fuel Tank Type...
ConditionUsed
Usage51 Hours
MLS Number13051633
CategoryGenerator Sets
Last Updated4/30/2025
Location
Redmond, OR, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar XQ30 Generator
11 0

2015 Caterpillar XQ30 Generator

$17,000 USD
CATERPILLAR XQ30 GENERATOR, Horsepower 49.0 hp, Online Owner's Manual, TRAILER VIN #16MBB1311FG072685,
Inspection Report
ConditionUsed
Usage18,961 Hours
Stock NumberUE01350
MLS Number12165367
CategoryGenerator Sets
Last Updated4/30/2025
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar 3412 Generator
10 0

1995 Caterpillar 3412 Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage541 Hours
Stock NumberEU00147
MLS Number12740183
CategoryGenerator Sets
Last Updated4/30/2025
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Featured Item
Caterpillar D100 Generator
7 0

2000 Caterpillar D100 Generator

$17,500 USD
Auto Start, Base Type - Skid, Cat Brand Genset, Circuit Breaker - 3 Pole, Control Panel, Engine Type - Diesel, Frequency - 60 Hz, Generator, Jacket Water Heater, No Enclosure, Rating -...
ConditionUsed
Usage738 Hours
MLS Number13427969
CategoryGenerator Sets
Last Updated4/30/2025
Location
Jacksonville, FL, US
Sold By

Ring Power Corporation

Featured Item
Caterpillar G3406TA Generator
1 0

2012 Caterpillar G3406TA Generator

$31,100 USD
Online Owner's Manual,
ConditionUsed
Usage9,985 Hours
Stock NumberRP11315
MLS Number10875205
CategoryGenerator Sets
Last Updated4/30/2025
Location
Midland, TX, US
Sold By

Warren Power Systems

Featured Item
Caterpillar 3516 RADIATOR Generator
5 0

2001 Caterpillar 3516 RADIATOR Generator

$5,000 USD
Inspection Report
ConditionUsed
Usage2,005 Hours
Stock NumberE16563
MLS Number13262221
CategoryGenerator Sets
Last Updated4/30/2025
Location
Florence, SC, US
Sold By

Blanchard Power Systems

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 Updated4/30/2025
Location
San Leandro, CA, US
Sold By

Peterson Power Systems

Featured Item
Caterpillar 3516B Generator Set
5 0

1999 Caterpillar 3516B Generator Set

$340,000 USD
60 HZ, CAT BRAND GENSET, CONTINUOUS, DIESEL, EMCP II+, GENERATORS, LESS THAN 1000 SINCE NEW, Online Owner's Manual, PRIME, STANDBY, USED 3516B 2000KW 2500KVA 480V 3PH 60HZ OPEN SKID,
ConditionUsed
Usage1,000 Hours
MLS Number9118451
CategoryGenerator Sets
Last Updated4/30/2025
Location
Miami, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar 3516B Generator
7 0

2024 Caterpillar 3516B Generator

$565,000 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 Updated4/30/2025
Location
Miami, FL, US
Sold By

Pantropic Power

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 Updated4/30/2025
Location
Fort Myers, FL, US
Sold By

Pantropic Power

Featured Item
Caterpillar OC30 Generator
8 0

2015 Caterpillar OC30 Generator

$36,500 USD
Online Owner's Manual, TRAILER MOUNTED,
ConditionUsed
Usage1,955 Hours
Stock NumberEQ145158
MLS Number11235441
CategoryGenerator Sets
Last Updated4/30/2025
Location
Milford, MA, US
Sold By

Milton CAT Power Systems

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 Updated4/30/2025
Location
Miami, FL, US
Sold By

Pantropic Power

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 Updated4/30/2025
Location
San Diego, CA, US
Sold By

Hawthorne Power Systems

Featured Item
Caterpillar XQ230 T4F Generator
8 0

2019 Caterpillar XQ230 T4F Generator

Call for price
Online Owner's Manual,
ConditionUsed
Usage703 Hours
Stock NumberEU00120
MLS Number12030926
CategoryGenerator Sets
Last Updated4/30/2025
Location
Knoxville, TN, US
Sold By

Stowers Power Systems

Consolidated power Ind, 150 kw Generator
7 0

Consolidated power Ind, 150 kw Generator

Newly Listed
$18,900 USD
150kw Consolidated power ltd generator, 908 hours, 3 phase, operates good
ConditionUsed
Usage908 Hours
MLS Number13607010
CategoryGenerator Sets
Last Updated5/28/2025
Location
Wayne, MI, US
Sold By

Construction Station LLC

Caterpillar G3520 Generator
7 0

2010 Caterpillar G3520 Generator

Newly Listed
Call for price
ConditionUsed
Usage70,000 Hours
Stock NumberG006951
MLS Number13606798
CategoryGenerator Sets
Last Updated5/28/2025
Location
Bremen, Germany
Sold By

ZEPPELIN POWER SYSTEMS

Caterpillar G3520 Generator
5 0

2010 Caterpillar G3520 Generator

Newly Listed
Call for price
ConditionUsed
Usage70,000 Hours
Stock NumberG006950
MLS Number13606797
CategoryGenerator Sets
Last Updated5/28/2025
Location
Bremen, Germany
Sold By

ZEPPELIN POWER SYSTEMS

Cummins 2000 KW Diesel Generator
7 0

2025 Cummins 2000 KW Diesel Generator

Recently Updated
$899,500 USD
*****Ready to ship*****New Cummins 2000 kW standby (1825 kW prime) diesel generator set model C2000D6E, SN-D250438111. Cummins QSK50-G24 NR2 engine rated 2956 HP at 1800 RPM, SN-25500705,...
ConditionNew
Horse Power2956 HP
Engine ModelCummins QSK50-G24 NR2
Emission RatingUSA Tier 2
Stock NumberCentral States #4553
MLS Number13496012
CategoryGenerator Sets
Last Updated5/28/2025
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Cummins DQDAA Diesel Generator
11 1

2012 Cummins DQDAA Diesel Generator

Recently Updated
$54,900 USD
Used Cummins 250 kW standby (225 kW prime) diesel generator set model DQDAA, SN-J120409476. Cummins QSL9-G7 engine rated 464 HP at 1800 RPM, SN-73446570, EPA Tier 3 emissions. ...
ConditionUsed
Usage193 Hours
Horse Power464 HP
Engine ModelCummins QSL9-G7
Emission RatingUSA Tier 3
Stock NumberCentral States #4665
MLS Number13423830
CategoryGenerator Sets
Last Updated5/28/2025
Location
Waukesha, WI, US
Sold By

Central States Diesel Generators

Multiquip DCA-70SSJU Generator
30 0

2006 Multiquip DCA-70SSJU Generator

Newly Listed
$11,750 USD
2006 MultiQuip Power Whisperwatt Diesel Powered AC Generator. Engine Model: John Deere 4045TF150, Turbo 90 HP 4.5 Lit engine. Hours: 8,551. AC Generator Model: DB-0831J, 70 KVA 3 Phase power...
ConditionUsed
Usage8,551 Hours
Stock NumberJWU0LPBw715395
MLS Number13606447
CategoryGenerator Sets
Last Updated5/28/2025
Location
Prairieville, LA, US
Sold By

Proxy Equipment

Caterpillar G3406TA Enclosed Natural Gas Generator
6 1

Caterpillar G3406TA Enclosed Natural Gas Generator

Recently Updated
$28,975 USD
150KW Natural Gas Caterpillar G3406T Enclosed Generator Set With 2,778 Hours, 480V, 3 Phase, 1800Rpm, 60Hz, Has Been Floor Ran Tested. Length (in): 17.8' Width (in): 8' Height (in): 9.9'
ConditionUsed
Usage2,778 Hours
Horse Power200 HP
Engine ModelCaterpillar G3406
Stock Number103638
MLS Number13289359
CategoryGenerator Sets
Last Updated5/28/2025
Location
Houston, TX, US
Sold By

Swift Equipment Solutions

Caterpillar C27 Generator
7 0

2010 Caterpillar C27 Generator

Price Drop
$201,939.78 USD
Cat Brand Genset, CSA Certification, Package Type Cat Standard Unit, Tier 2 Compliant,
ConditionUsed
Usage11,500 Hours
Stock NumberE240008I
MLS Number13291107
CategoryGenerator Sets
Last Updated5/28/2025
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

Caterpillar 3406 Generator
9 0

1999 Caterpillar 3406 Generator

Recently Updated
$49,218.30 USD
Auto Start, Cat Brand Genset, Circuit Breaker - 3 Pole, CSA Certification, Emissions Level, Engine Type - Diesel, Frequency - 60 Hz, Jacket Water Heater, Standard Voltage Regulator,
Inspection Report
ConditionUsed
Usage228 Hours
Stock NumberE240008HG
MLS Number13265280
CategoryGenerator Sets
Last Updated5/28/2025
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

Caterpillar 3456 Generator
4 0

2005 Caterpillar 3456 Generator

Recently Updated
$129,559.93 USD
12 Hour Integral Tank (Dual Wall), Annunciator Module, Auto Start, Base Tank, Battery Charger, Cat Brand Genset, Circuit Breaker, Control Panel - Other, CSA Certification, Enclosure Lights,...
Inspection Report
ConditionUsed
Usage360 Hours
Stock NumberE230008AF
MLS Number13250153
CategoryGenerator Sets
Last Updated5/28/2025
Location
Pointe-Claire, QC, 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.
Got a generator to sell? In minutes, you can create an online listing for your generator and advertise it to thousands of buyers.
Start selling today