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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1-25 of 1,419 results
Featured Item
L3 MEP805B Diesel Generator
74 0

2008 L3 MEP805B Diesel Generator

$7,995 USD
**Details**, - Comes with by Buyer Guarantee ++, - Ask us for the videos and 50+ additional photos ++, - Recent full inspection by a certified mechanic. Inquire for a copy ++ The L3 OFNW8...
ConditionUsed
Usage840 Hours
Horse Power111 HP
Engine ModelJohn Deere 4045TF - 4Cyl. - 4.5L - 111Hp - Diesel
MLS Number12001601
Last Updated9/12/2023
Location
Bakersfield, CA, US
Sold By

Boom and Bucket

Featured Item
Industrial Generator - Kohler Diesel w/ Cummins Engine
8 0

Industrial Generator - Kohler Diesel w/ Cummins Engine

$13,500 USD
Kohler Diesel Generator -Model 250ROZ271, -Serial # 231342, -3 Phase, -250 KW, -313 KVA, -867 amps, -Cummins Diesel, - Engine Model NY 855-65, -Engine Serial # 11477635 At Flipping...
ConditionUsed
Stock Number21-5003
MLS Number10727008
Last Updated8/22/2023
Location
Bakersfield, CA, US
Sold By

Flipping Iron Inc.

Featured Item
Magnum 320 kW Generator By Generac - THREE GENERATORS AVAILABLE
11 0

Magnum 320 kW Generator By Generac - THREE GENERATORS AVAILABLE

$54,900 USD
THREE GENERATORS AVAILABLE!, One has less than 5 hours with a complete rebuild, One has 13,000 hours, One has 14,000 hours Price: $54,900 - $69,000 These generators include the 750...
Quantity3
ConditionUsed
MLS Number12223765
Last Updated9/11/2023
Location
Hankinson, ND, US
Sold By

Big Rig Truck Sales ND

Featured Item
GENPOWERUSA GP-J100-60T3-2SA Diesel Generator
75 0

2021 GENPOWERUSA GP-J100-60T3-2SA Diesel Generator

$32,000 USD
**Details**, - Comes with by Buyer Guarantee ++, - Ask us for the videos and 50+ additional photos ++, - Recent full inspection by a certified mechanic. Inquire for a copy ++ This 100 kW...
ConditionUsed
Horse Power158 HP
MLS Number12016076
Last Updated7/29/2023
Location
Los Angeles, CA, US
Sold By

Boom and Bucket

Featured Item
Caterpillar D100-4 Generator
40 0

2006 Caterpillar D100-4 Generator

$24,495 USD
**Details**, - Comes with by Buyer Guarantee ++, - Ask us for the videos and 50+ additional photos ++, - Recent full inspection by certified mechanic inquire for a copy ++ **Inspection...
ConditionUsed
Usage104 Hours
Horse Power157 HP
Engine ModelCaterpillar C4.4 157Hp 4.4L I6 TurboD
MLS Number11480665
Last Updated9/8/2023
Location
Los Angeles, CA, US
Sold By

Boom and Bucket

Featured Item
Onan 350DFCC Generator
6 0

Onan 350DFCC Generator

$34,000 USD
Forsale 350KW cummins onan generator. Runs as it should. Customer upgraded to larger unit for their crushing operation. Feel free to reach out with any questions. Asking $34,000 OBO
ConditionUsed
Usage9,000 Hours
Engine ModelCummins
MLS Number12092345
Last Updated9/5/2023
Location
Priest River, ID, US
Sold By

Powell Enterprises LLC

Featured Item
40KW Open Frame Diesel Generator - New Custom Manufactured
1 0

40KW Open Frame Diesel Generator - New Custom Manufactured

$19,995 USD
40KW / 40,000W Open Frame Diesel Generator – Final Tier IV Standard Base Unit: , 40KW or 40,000W , Single Phase Option – 333A @ 120VAC / 166A @ 240VAC , Three Phase Option –...
Warranty
Quantity6
ConditionNew
Horse Power75 HP
Engine Model4H50TIC
Emission RatingTier 4 Final
L x W58 x 27
Weight990
Stock NumberMSS40_4HMFT
MLS Number11990296
Last Updated5/2/2023
Location
Columbus, NJ, US
Sold By

Melton Industries

Featured Item
2006 Aggretech Marelli Deutz Diesel Generator Genset 3-Cylinder Diesel Air-Cooled Standby Generator
10 0

2006 Aggretech Marelli Deutz Diesel Generator Genset 3-Cylinder Diesel Air-Cooled Standby Generator

$5,999.99 USD
(LIKE NEW) 2006 AGGRETECH MARELLI DEUTZ DIESEL GENERATOR SET, DEUTZ 3-CYLINDER, AIR-COOLED ENGINE, TYPE: F3M 2011, ESN: 10295406, 19.4KW @ 1500RPM, AGGRETECH GENERATOR, TYPE: D20SH, 20KW, SN...
ConditionUsed
Usage100 Hours
Engine ModelDeutz F3M2011
Capacity20 KW Diesel Generator
Stock Number218683
MLS Number10722026
Last Updated9/12/2023
Location
Rockwood, TN, US
Sold By

Machinery and Truck Parts

W15PTOS-3/F Generator
17 0

W15PTOS-3/F Generator

Newly Listed
At auction Sep. 20
WINCO PORTABLE GENERATOR, WINCO W15PTOS-3/F PORTABLE GENERATOR, 15,000 WATTS, AMPS: 62.5, OUTPUT: 120/240V, PHASE: SINGLE, MAIN CURCUIT BREAKER: 60AMO, PTO DRIVE SHAFT, TRAILER KIT, SN#:...
ConditionUsed
Stock Number314182
MLS Number12332291
Last Updated9/22/2023
Location
Pelzer, SC, US
Listed By

Jeff Martin Auctioneers

Caterpillar 365 KW Diesel Generator
2 0

Caterpillar 365 KW Diesel Generator

Newly Listed
Call for price
365kW Caterpillar 3406C open skid mounted diesel generator set with a skid base fuel tank, 3 phase, 12 wire, 60Hz, 1800rpm, 480V
ConditionUsed
Engine ModelCaterpillar 3406C
Stock Number103295
MLS Number12331935
Last Updated9/22/2023
Location
Houston, TX, US
Sold By

Swift Equipment Solutions

Caterpillar 3512B Generator
5 0

1998 Caterpillar 3512B Generator

Newly Listed
$29,000 USD
MODEL 3512B ENGINE, 1250KW,, MODEL YEAR 1998, TRADE IN FROM, MOUNTAIN STATE CONSTRUCTORS,
ConditionUsed
Stock NumberEE20986
MLS Number12331726
Last Updated9/22/2023
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Caterpillar C15 Generator
23 0

2010 Caterpillar C15 Generator

Recently Updated
Call for price
350KW STANDBY/320KW PRIME CAT, C15; EPA CERTIFIED TIER 3; NEW, IN 2010; CAT GEN 480V, CAT, DIGITAL CONTROL PANEL EMCP 3.2;, CAT ELECTRONIC GOVERNOR, INSTALLED RADIATOR; BREAKER, 600 AMP;...
ConditionUsed
Usage60 Hours
Stock NumberEE20983
MLS Number12273422
Last Updated9/22/2023
Location
PHOENIX, AZ, US
Sold By

Empire Power Systems

Caterpillar G 3520 Generator
15 0

2014 Caterpillar G 3520 Generator

Newly Listed
$963,605.37 USD
Cat Brand Genset, Enclosure Exterior E-Stop, Enclosure Lights, Enclosure Material, Engine Type - Natural Gas, Frequency - 60 Hz, Generator, Generator Space Heater, Jacket Water Heater,...
ConditionUsed
Usage11,900 Hours
MLS Number12331135
Last Updated9/22/2023
Location
Lethbridge, AB, Canada
Sold By

Finning Canada

Caterpillar 3412C Generator
16 0

2004 Caterpillar 3412C Generator

Recently Updated
$145,000 USD
Operator's Manual,
ConditionUsed
Usage554 Hours
Stock NumberEPU11246
MLS Number12310007
Last Updated9/22/2023
Location
Indianapolis, IN, US
Sold By

MacAllister Machinery

Kohler 1000 KW Diesel Generator
9 0

Kohler 1000 KW Diesel Generator

Recently Updated
$34,500 USD
1000kW Kohler diesel generator set powered by a Detroit 24V71TT with skid base fuel tank with 294 hours, 480V, 1800rpm, 3 phase, 60Hz
ConditionUsed
Usage294 Hours
Engine ModelDetroit 24V71
Stock Number103064
MLS Number11915260
Last Updated9/22/2023
Location
Houston, TX, US
Sold By

Swift Equipment Solutions

MTU 62 KW Diesel Generator
5 0

2006 MTU 62 KW Diesel Generator

Recently Updated
Call for price
MTU 62 kW Diesel Generator Model #: 60DSEJB Year 2006, 8 Hours, 120/208 Volt, 3 Phas,
ConditionUsed
Usage85 Hours
Engine ModelJohn Deere PE10248
Stock NumberFL-89300
MLS Number12034470
Last Updated9/22/2023
Location
Jacksonville, FL, US
Sold By

Generator Source

Caterpillar 3512 Generator
6 0

2005 Caterpillar 3512 Generator

Recently Updated
$178,228.39 USD
Operator's Manual,
ConditionUsed
Usage221 Hours
Stock Number000000000010226186
MLS Number12295840
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar 3512 Generator
7 0

2005 Caterpillar 3512 Generator

Recently Updated
$178,228.39 USD
Operator's Manual,
ConditionUsed
Usage187 Hours
Stock Number000000000010226190
MLS Number12295839
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar C32 Generator
6 0

2023 Caterpillar C32 Generator

Recently Updated
$192,102.45 USD
Operator's Manual,
ConditionUsed
Stock Number000000000010464040
MLS Number12295803
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar 3412 Generator
5 0

2012 Caterpillar 3412 Generator

Recently Updated
$92,849.52 USD
Operator's Manual,
ConditionUsed
Usage1,023 Hours
Stock Number000000000010466338
MLS Number12295802
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar 3412 Generator
3 0

2016 Caterpillar 3412 Generator

Recently Updated
$96,051.23 USD
Operator's Manual,
ConditionUsed
Usage6,166 Hours
Stock Number000000000010422455
MLS Number12295800
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar C32 Generator
4 0

2023 Caterpillar C32 Generator

Recently Updated
$192,102.45 USD
Operator's Manual,
ConditionUsed
Stock Number000000000010464041
MLS Number12295799
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar C32 Generator
5 0

2023 Caterpillar C32 Generator

Recently Updated
$192,102.45 USD
Operator's Manual,
ConditionUsed
Stock Number000000000010464044
MLS Number12295798
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar C32 Generator
5 0

2023 Caterpillar C32 Generator

Recently Updated
$192,102.45 USD
Operator's Manual,
ConditionUsed
Stock Number000000000010464043
MLS Number12295796
Last Updated9/22/2023
Location
Madrid, Spain
Sold By

Barloworld Finanzauto

Caterpillar C15 Generator
7 0

2015 Caterpillar C15 Generator

Recently Updated
$118,226.97 USD
60 HZ, BASE TANK, CAT BRAND GENSET, CAT C15 500KW 480V GENERATOR, DIESEL, EMCP 4.2 CONTROL PANEL, JACKET WATER HEATER, Operator's Manual, SOUND ATTENUATED ENCLOSURE, STANDBY,
ConditionUsed
Usage156 Hours
MLS Number11922049
Last Updated9/22/2023
Location
Calgary, AB, Canada
Sold By

Finning Canada

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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