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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Industrial Equipment (1913)
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1-25 of 1,913 results
1-25 of 1,913 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

Caterpillar C27 Generator
7 0

2010 Caterpillar C27 Generator

Price Drop
$201,983.64 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
$49,228.99 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
$129,588.07 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

Caterpillar 800KW-600V-C27 Generator
6 0

2019 Caterpillar 800KW-600V-C27 Generator

Price Drop
$259,900.09 USD
12 Hour Integral Tank (Dual Wall), Auto Start, Base Tank, Battery Charger, Cat Brand Genset, CSA Certification, EPA Stationary Emergency,
ConditionUsed
Usage8,730 Hours
Stock NumberE230008O
MLS Number12465966
CategoryGenerator Sets
Last Updated5/28/2025
Location
Brampton, ON, Canada
Sold By

Toromont Power Systems

Caterpillar C27 Generator
14 0

2009 Caterpillar C27 Generator

Price Drop
$252,660.54 USD
Auto Start, Base Type, Battery Charger, Battery Set, Cat Brand Genset, Circuit Breaker, CSA Certification, Enclosure Exterior E-Stop, Engine Type - Diesel, Frequency - 60 Hz, Jacket Water...
ConditionUsed
Usage138 Hours
Stock NumberE230008AA
MLS Number12498462
CategoryGenerator Sets
Last Updated5/28/2025
Location
Toronto, ON, Canada
Sold By

Toromont Power Systems

Volvo TAD1353GE Generator
17 0

2021 Volvo TAD1353GE Generator

Price Drop
$115,108.96 USD
3 POLE CIRCUIT BREAKER, 60 HZ, ALUMINUM SOUND ATTENUATED ENCLOSURE, AUTO START, BATTERY CHARGER, BATTERY CHARGER - 5 AMP, CSA CERTIFICATION, DIESEL, EPA LABEL, EPA STATIONARY EMERGENCY,...
ConditionUsed
Usage60 Hours
Stock NumberE230008U
MLS Number12249850
CategoryGenerator Sets
Last Updated5/28/2025
Location
Pointe-Claire, QC, Canada
Sold By

Toromont Power Systems

Caterpillar 3516 Generator
7 0

1996 Caterpillar 3516 Generator

Recently Updated
$571,201.04 USD
3 POLE CIRCUIT BREAKER, 60 HZ, ALTERNATOR SPACE HEATER (B), AUTO START, CAT BRAND GENSET, CSA CERTIFICATION, DIESEL, EMCP 4.2 CONTROL PANEL, GENERATORS, JACKET WATER HEATER, LOW FUEL...
Inspection Report
ConditionUsed
Usage2 Hours
Stock NumberE230008P
MLS Number12398096
CategoryGenerator Sets
Last Updated5/28/2025
Location
Thunder Bay, ON, Canada
Sold By

Toromont Power Systems

Caterpillar 3516 Generator
9 0

2006 Caterpillar 3516 Generator

Recently Updated
$264,739.23 USD
Online Owner's Manual,
ConditionUsed
Usage12,155 Hours
Stock Number000000000010465707
MLS Number12860238
CategoryGenerator Sets
Last Updated5/28/2025
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Multiquip DCA70SS Generator
4 0

2023 Multiquip DCA70SS Generator

Recently Updated
Call for price
BALL COUPLER 2 5/16 14K, BATT CHG 6A, DEERE TIER 4F ENV, KIT POWERBALANCE, TRAILER DCA70SSI ELEC, VIN# 5SLBG1329PL042127,
ConditionUsed
Usage3,464 Hours
Stock Number7307381
MLS Number12177391
CategoryGenerator Sets
Last Updated5/28/2025
Location
Casper, WY, US
Sold By

Wyoming Machinery Company

Caterpillar C15 Generator
12 0

2014 Caterpillar C15 Generator

Recently Updated
$208,499.24 USD
Online Owner's Manual,
ConditionUsed
Usage4,517 Hours
Stock NumberE220008Y
MLS Number11769032
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.
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