Generac Generator Sets For Sale

2006 Generac 500 KW Diesel Generator

Newly Listed

$59,900 USD

Generac 500 kW standby (455 kW prime) diesel generator set model MD0500, SN-2090173. Doosan P180FE engine rated 762 HP at 1800RPM, SN-EASOC600832, EPA Tier 2 emissions. 3/60/277/480V. 800...

Condition	Used
Usage	337 Hours
Horse Power	762 HP
Engine Model	P180FE
Emission Rating	USA Tier 2
Stock Number	Central States #5106
MLS Number	14450714
Category	Generator Sets
Last Updated	6/25/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

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2015 Generac 400 KW Diesel Generator

2008 Generac SD0400 Generator

Price Drop $31,500 USD

Condition	Used
Usage	360 Hours
MLS Number	14244514
Category	Generator Sets
Last Updated	6/24/2026
Location	Jacksonville, FL, US
Sold By	Ring Power Corporation

2018 Generac MMG251F4 22kw Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Izuzu diesel engine, 240V/92Amp, Single Three Phase, 1,800 RPM, MagnaPlus AC Generator, Pintle Hook, ST205/75R15 tires, SN: 3003491163

Condition	Used
Stock Number	IP8481
MLS Number	14403404
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac MMG251F4 Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Isuzu Diesel engine, Single and Three Phase, 1,800RPM, 240V, 92 Amps., pintle hook, adjustable tongue, ST225/75R15 tires, SN: 3003368972

Condition	Used
Stock Number	IP8485
MLS Number	14403403
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac MMG251F4 22kw Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Isuzu Diesel engine, Single Three Phase, 1,800RPM, 240V, 92 Amps, adjustable tongue, ST225/75R15 tires, SN: 3003491161

Condition	Used
Stock Number	IP8489
MLS Number	14403402
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac MMG251F4 22KW Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Isuzu Diesel engine, Single Three Phase, 1,800RPM, 240V, 92 Amps, adjustable tongue, ST225/75R15 tires, SN: 3003491169

Condition	Used
Stock Number	IP8491
MLS Number	14403396
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2015 Generac MMG251F4 22kw Generator

At auction Jun. 17

2015 Generac MMG251F4 22kW Portable Generator, Pintle Hook, adjusting tongue, Single axle trailer w/ stands, MagnaPlus AC Generator, Single Three Phase, 240 Volt, 1,800 Engine, RPM, 92 Amp,...

Condition	Used
Stock Number	IP8476
MLS Number	14403395
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac MMG251F4 22kw Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Izuzu engine, adjusting tongue, Single axle trailer w/ stands, MagnaPlus AC Generator, Single Three Phase, 240 Volt, 1,800 Engine RPM, 92 Amp,...

Condition	Used
Stock Number	IP8480
MLS Number	14403394
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac MMG251F4 22kw Generator

At auction Jun. 17

2018 Generac MMG251F4 22kW Portable Generator, Isuzu Diesel engine, Single Three Phase, 1,800RPM, 240V, 92 Amps, pintle hook, adjustable tongue, ST225/75R15 tires, SN: 3003491159

Condition	Used
Stock Number	IP8484
MLS Number	14403393
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2020 Generac SD100 Diesel Generator

$27,900 USD

Generac 100 kW standby (90 kW prime) diesel generator set model SD0100, SN-306124519. Iveco/FPT FGE9685A 6.7L engine rated 152 HP at 1800 RPM, SN-01761591, EPA Tier 3 emissions. ...

Condition	Used
Usage	261 Hours
Horse Power	152 HP
Engine Model	FGE9685A 6.7L
Emission Rating	USA Tier 3
Stock Number	Central States #5101
MLS Number	14438130
Category	Generator Sets
Last Updated	6/18/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2020 Generac SD100 Diesel Generator

$29,900 USD

New / Surplus Generac 100 kW standby (90 kW prime) diesel generator set model SD0100, SN-306117708. Iveco/FPT FGE9685A 6.7L engine rated 152 HP at 1800 RPM, SN-01760892, EPA Tier 3...

Condition	New
Horse Power	152 HP
Engine Model	FGE9685A 6.7L
Emission Rating	USA Tier 3
Stock Number	Central States #5100
MLS Number	14438127
Category	Generator Sets
Last Updated	6/18/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2015 Generac SG0300 Natural Gas Generator

$59,900 USD

Generac 300 kW standby (270 kW prime) natural gas generator set model SG0300, SN-9764839. Generac SCI13GT525D 14.2L engine rated 477 HP at 2200 RPM, SN-G9152000747, EPA certified....

Condition	Used
Usage	192 Hours
Horse Power	477 HP
Engine Model	SCI13GT525D 14.2L
Stock Number	Central States #5098
MLS Number	14438089
Category	Generator Sets
Last Updated	6/18/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

Generac 5624-4 4000 watt gas powered generator

At auction Jul. 8

Generac 5624-4 4000 watt gas powered generator, Wind Up Rope Star Gas Engine, (2) 115 Volt Outlets, (1) 230 Volt Outlet, Mounted on Cart, NOTE: Not Running, SN: 0381817

Condition	Used
Stock Number	LK5230
MLS Number	14436494
Category	Generator Sets
Last Updated	6/18/2026
Location	Carleton, NE, US
Listed By	BigIron Auctions

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2006 Generac GUARDIAN--35NG-35LPV Generator

Price Drop $1,900 USD

Condition	Used
Usage	300 Hours
Stock Number	028557
MLS Number	13973516
Category	Generator Sets
Last Updated	6/17/2026
Location	San Diego, CA, US
Sold By	Hawthorne Power Systems

2023 Generac SG050NA Natural Gas Generator

$19,900 USD

New / Surplus Generac 48 kW standby natural gas / LP generator set model SG050NA, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 3/60/120/240V, 12 lead reconnectable...

Condition	New
Horse Power	86 HP
Engine Model	4.5L
Stock Number	Central States #5085
MLS Number	14391506
Category	Generator Sets
Last Updated	6/12/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2023 Generac SG050NA Natural Gas Generator

$14,900 USD

New / Surplus Generac 48 kW standby natural gas / LP generator set model SG050NA, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 3/60/120/240V, 12 lead reconnectable...

Condition	New
Horse Power	86 HP
Engine Model	4.5L
Stock Number	Central States #5081
MLS Number	14391505
Category	Generator Sets
Last Updated	6/12/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2023 Generac SG050NA Natural Gas Generator

$19,900 USD

New / Surplus Generac 50 kW standby natural gas / LP generator set model SG050NA, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 1/60/120/240V single phase, 12 lead...

Condition	New
Horse Power	86 HP
Engine Model	4.5L
Stock Number	Central States #5084
MLS Number	14391480
Category	Generator Sets
Last Updated	6/12/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2023 Generac SG050NA Natural Gas Generator

$19,900 USD

New / Surplus Generac 50 kW standby natural gas / LP generator set model SG050NA, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 1/60/120/240V single phase, 12 lead...

Condition	New
Horse Power	86 HP
Engine Model	4.5L
Stock Number	Central States #5083
MLS Number	14391477
Category	Generator Sets
Last Updated	6/12/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2023 Generac SG050NA Natural Gas Generator

$19,900 USD

New / Surplus Generac 50 kW standby natural gas / LP generator set model SG050NA, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 1/60/120/240V single phase, 12 lead...

Condition	New
Horse Power	86 HP
Engine Model	4.5L
Stock Number	Central States #5082
MLS Number	14391476
Category	Generator Sets
Last Updated	6/12/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

2023 Generac SG035 Natural Gas Generator

$17,900 USD

New / Surplus Generac 35 kW standby (32 kW prime) natural gas / LP generator set model SG035, SN-. Generac 4.5L engine rated 75 HP at 1800 RPM, SN-, EPA certified. 1/60/120/240V single phase...

Condition	New
Horse Power	62 HP
Engine Model	4.5L
Stock Number	Central States #5086
MLS Number	14391509
Category	Generator Sets
Last Updated	6/10/2026
Location	Waukesha, WI, US
Sold By	Central States Diesel Generators

Generac GP3250 portable gas generator

At auction Jun. 17

Generac GP3250 portable gas generator, 3250 Running Watts, Rope Start Single Cylinder Gas Engine, 1- 120/240 Volt Twist Lock Connector, 2- 120 Volt Outlets, In Cart with Wheels and Flip Down...

Condition	Used
Stock Number	LK5193
MLS Number	14407193
Category	Generator Sets
Last Updated	6/4/2026
Location	Davenport, NE, US
Listed By	BigIron Auctions

2019 Generac G0071900 15kw Generator

At auction Jun. 17

2019 Generac G0071900 15kW Generator, Diesel engine, Single Phase, 120/240V, 63 Amps, 1,800RPM, SN: 3004274580

Condition	Used
Stock Number	IP8488
MLS Number	14403412
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions

2018 Generac G0071900 15kw Generator

At auction Jun. 17

2018 Generac G0071900 15kW Generator, Diesel engine, Single Phase, 120/240V, 1,800RPM, 63 Amps, SN: 3004021765

Condition	Used
Stock Number	IP8492
MLS Number	14403411
Category	Generator Sets
Last Updated	6/19/2026
Location	Springfield, IL, US
Listed By	BigIron Auctions