Generator Sets For Sale

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

Explore marketplace listings for new and used Generator Sets on MyLittleSalesman.com, with prices from $500 to $1,999,900. Filter by hours, price, or year to refine by spec.
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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For Rent (20)

Showing 1 - 25 of 1,669 Generator Listings

1 - 25 of 1,669 listings
1 - 25 of 1,669 listings
Multiquip DCA70SSIU4F Diesel Generator

2023 Multiquip DCA70SSIU4F Diesel Generator

Newly Listed
$69,500 USD
Contact for rental/lease prices
GENERATOR 56KW, DIESEL, TRAILER(FUEL CELL), POWER BALANCER, DCA70SSIU4f, FOB: FLEET MAINTAINED - RECORDS AVAILABLE ON REQUEST, PRICE DOES NOT INCLUDE SALES TAX HOUR METER READING MAY VARY...
ConditionUsed
Usage7,284 Hours
Stock Number4648190
MLS Number14733286
CategoryGenerator Sets
Last Updated11/7/2026
Location
Chehalis, WA, US
Sold By
Tyler Rental Inc.
Multiquip DCA25SSI4F Generator

2023 Multiquip DCA25SSI4F Generator

Newly Listed
$27,500 USD
Contact for rental/lease prices
GENERATOR 20 KW DS MQ DCA25SSI4F W/TRAILER, FOB: FLEET MAINTAINED - RECORDS AVAILABLE ON REQUEST, PRICE DOES NOT INCLUDE SALES TAX HOUR METER READING MAY VARY DUE TO ACTIVE INVENTORY, SOLD...
ConditionUsed
Usage3,607 Hours
Stock Number4620002
MLS Number14733285
CategoryGenerator Sets
Last Updated11/7/2026
Location
Chehalis, WA, US
Sold By
Tyler Rental Inc.
Doosan G70WJD-2A-T3 Generator

2013 Doosan G70WJD-2A-T3 Generator

Newly Listed
$24,500 USD
Contact for rental/lease prices
JOHN DEERE DSL ENGINE, TRAILER MOUNTED, 58 KW FOB: FLEET MAINTAINED - RECORDS AVAILABLE ON REQUEST, PRICE DOES NOT INCLUDE SALES TAX HOUR METER READING MAY VARY DUE TO ACTIVE INVENTORY, SOLD...
ConditionUsed
Usage7,312 Hours
Stock Number4648187
MLS Number14733281
CategoryGenerator Sets
Last Updated11/7/2026
Location
Chehalis, WA, US
Sold By
Tyler Rental Inc.
Allis-Chalmers 25-OYD3G/230AA 25 KW PTO Driven Generator

Allis-Chalmers 25-OYD3G/230AA 25 KW PTO Driven Generator

Newly Listed
At auction Nov. 25
Allis-Chalmers 25-OYD3G/230AA 25 KW PTO Driven Generator, 1 Phase, 540 PTO, 120 240 volt outlets, 104 Amp, on 2-wheel cart with 15" tires, see video for operation, SN: I790448197
ConditionUsed
Stock NumberKL6963
MLS Number14732695
CategoryGenerator Sets
Last Updated11/7/2026
Location
Pomona, KS, US
Listed By
BigIron Auctions
Caterpillar SR4 Generator

1999 Caterpillar SR4 Generator

Newly Listed
$149,500 USD
IN TRANSIT 1999 CATERPILLAR XQ600 GENERATOR SR4B 3412 CAT MOTOR WITH 1,900 HOURS AND A REPORTED 545 KW OUTPUT, HES EQUIPMENT STOCK #11080. THIS SELF-CONTAINED GENERATOR PACKAGE IS HOUSED IN...
ConditionUsed
Usage1,900 Hours
Stock Number11080
MLS Number14730902
CategoryGenerator Sets
Last Updated11/7/2026
Location
Holland, MI, US
Sold By
HES Equipment / A&B Farms
(Used) 2010 Whisperwatt Generator- Model: DCA-70SSIU, Phase 3 Rated Output:

2011 (Used) 2010 Whisperwatt Generator- Model: DCA-70SSIU, Phase 3 Rated Output:

Newly Listed
$7,500 USD
(Used) 2010 WHISPERWATT GENERATOR- Model: DCA-70SSIU, Phase 3 Rated Output: 70kVA (56kW) Single Rated Output: 40kW(40kVA) Engine: Isuzu FF-4BG1T, HP: 87, Displacement: 4.3L, Serial Number:...
ConditionUsed
Engine ModelIsuzu Other
Fits To Make(s)Hino
Fits To Model(s)268
Will Fit Year(s)2011
Stock NumberP-28119
MLS Number14729238
CategoryGenerator Sets
Last Updated11/6/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
Onan 7.5kW Generator,  Model Number: 7.5DKDFJ Serial Number: B953330509 Spec:

1999 Onan 7.5kW Generator, Model Number: 7.5DKDFJ Serial Number: B953330509 Spec:

Newly Listed
$2,799.99 USD
Onan 7.5kW Generator, Model Number: 7.5DKDFJ Serial Number: B953330509 Spec: 27798D Battery Type: 12V KW: 7.5 KVA: 7.5 HZ: 60 Voltage: 120/240 Amperage: 62.5/31.25 Options: Z510 Hours: 325...
ConditionUsed
Engine ModelKDI2504M
Will Fit Year(s)1999
Part Number27798D
Stock NumberP-10248
MLS Number14729215
CategoryGenerator Sets
Last Updated11/6/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(Used) Onan 10.0 Genset 1069 Hours Kubota V1305-E Engine Disp 1335CC Serial

2001 (Used) Onan 10.0 Genset 1069 Hours Kubota V1305-E Engine Disp 1335CC Serial

Newly Listed
$1,499 USD
(Used) ONAN 10.0 GENSET 1069 HOURS KUBOTA V1305-E ENGINE DISP 1335CC SERIAL XQ5818 FAMILY SKB1.5U6D2RA CODE 1G281-00000 For more information about this item, give us a call. We ship...
ConditionUsed
Fits To Make(s)American La France
Fits To Model(s)American LaFrance Condor
Will Fit Year(s)2001
Part NumberV1305E
Stock NumberP-7665
MLS Number14729210
CategoryGenerator Sets
Last Updated11/6/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
Caterpillar D500GC Diesel Generator

2023 Caterpillar D500GC Diesel Generator

Recently Updated
$89,500 USD
Contact for rental/lease prices
2023 CATERPILLAR D500 GC DIESEL GENERATOR SET DESIGNED TO PROVIDE RELIABLE STANDBY POWER FOR COMMERCIAL, INDUSTRIAL, INSTITUTIONAL, AND CRITICAL-POWER APPLICATIONS. THE D500 GC IS RATED AT...
ConditionUsed
Usage6,810 Hours
Horse Power865 HP
Stock Number10979
MLS Number14647933
CategoryGenerator Sets
Last Updated11/6/2026
Location
Holland, MI, US
Sold By
HES Equipment / A&B Farms
Good Used Pto Driven Generator Weg 27.5KVA 3 Phase 480/240 22 Kilowatt

2017 Good Used Pto Driven Generator Weg 27.5KVA 3 Phase 480/240 22 Kilowatt

Newly Listed
Contact for price
GOOD USED PTO DRIVEN GENERATOR WEG 27.5KVA 3 PHASE 480/240 22 KILOWATT, Serial#: 1034986753 01 17, Engine Make: Other, Casting#: GET
ConditionUsed
Will Fit Year(s)2017
Part NumberGTA161 AN HJ
Stock NumberP-62660
MLS Number14728688
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Good Used Genset Assy, Will Run And Get Hours

2022 Good Used Genset Assy, Will Run And Get Hours

Newly Listed
$3,295 USD
GOOD USED GENSET ASSY, WILL RUN AND GET HOURS., Serial#: GET, Engine Make: Cummins, Engine Model: X15, KVW: GET
ConditionUsed
Engine ModelCummins X15
Fits To Make(s)International
Fits To Model(s)LT625
Will Fit Year(s)2022
Part NumberGET
Stock Number90326-14
MLS Number14728686
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Good Used Genset Assy, Cover Is Bent Slightly. Will Run And Get Hours

2023 Good Used Genset Assy, Cover Is Bent Slightly. Will Run And Get Hours

Newly Listed
$2,995 USD
GOOD USED GENSET ASSY, COVER IS BENT SLIGHTLY. WILL RUN AND GET HOURS., Engine Make: Cummins, Engine Model: X15
ConditionUsed
Fits To Make(s)International
Fits To Model(s)LT625
Will Fit Year(s)2023
Stock Number52226-22
MLS Number14728668
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Good Used Genset, Will Run And Get Hours

2022 Good Used Genset, Will Run And Get Hours

Newly Listed
$3,495 USD
GOOD USED GENSET, WILL RUN AND GET HOURS, Serial#: 80319887, Engine Make: Cummins, Engine Model: ISX/X15
ConditionUsed
Engine ModelCummins ISX/X15
Fits To Make(s)Kenworth
Fits To Model(s)T680
Will Fit Year(s)2022
Stock Number40126-13
MLS Number14728657
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Thermo King TRIPAC E Diesel Generator

2011 Thermo King TRIPAC E Diesel Generator

Newly Listed
$2,000 USD
USED TRI-PAC E THERMO KING APU/ DEEP CYCLE BATTERY OPERATION/ NO DIESEL ENGINE, Engine Make: Volvo, Engine Model: D13
ConditionUsed
Fits To Make(s)Volvo
Fits To Model(s)VNM
Will Fit Year(s)2011
Part NumberTRI PAC E
Stock Number41919-13
MLS Number14728451
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
Good Propane 6.5 KW Generator Assembly. Unsure On Hrs. Will Test Run

2002 Good Propane 6.5 KW Generator Assembly. Unsure On Hrs. Will Test Run

Newly Listed
$1,995 USD
GOOD PROPANE 6.5 KW GENERATOR ASSEMBLY. UNSURE ON HRS. WILL TEST RUN, Serial#: NA, Engine Make: Onan, KVW: 6.5
ConditionUsed
Fits To Make(s)Freightliner
Fits To Model(s)XCS Chassis
Will Fit Year(s)2002
Part Number6500LP MARQUIS GOLD
Stock Number91819-5
MLS Number14728447
CategoryGenerator Sets
Last Updated11/6/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts

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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