USP&E sells Cat generators and stocks a large inventory of Cat diesel generators to choose from. Our cat generators are mostly model year 1999 or newer and have low hours since new. Whether you need parts or a complete unit, USP&E is the place to be if you want low everyday prices and friendly, proactive, creative and flexible customer service.

Caterpillar makes a very good generator with great reviews. Cat is famous for manufacturing some of the finest power generators and industrial engines on the market today. With clean diesel engines designed to last for thousands of hours before any maintenance is required, you can rest easy knowing your Cat genset will be there to provide the standby emergency or prime power when you need it most.

US Power & Environment specializes in low-hour used generators from 50 kW to 3000 kW. We offer diesel, natural gas, propane, and electric power continuous and emergency standby generators. Whether you are just looking for one open skid Cat generator or you require 3 dozen enclosed diesel Cat generators for your facility, you are looking in the right spot. We have Cat 3516 generators, Cat 3512 generators, Cat 3508 generators, and also sell the 3400 series units as well. Please call us at 888-515-8773 or email our team at info@uspowerco.com today for more information on our Cat generators for sale.

If you do not see the equipment you are searching for, be sure to contact us with your requirements, as it may not be listed yet or we can potentially locate it (or a comparable substitute) for you. We have a large network of clients and end users who are often looking to liquidate their generators and switchgear.

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Call For Price Item#: USP000900
NEW

2.06 MW 2007 Caterpillar G3520C Natural Gas Generator

No Enclosure, 60 Hz, 7 x Caterpillar Gensets, 2055 KW Continuous, 2889 HP , 3 Phase, 480 Volt, 1800 RPM, Jacket water heater, Solenoid valve, Explosion relief valve, Aftercooler, Two bearing gen...
Call For Price Item#: USP000673
NEW

2.00 MW 2008 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, 400 Volt, 3 Phase. 1500 RPM. Turbo, Alternator, Electric Governor. Air / Oil Filters. Automatic Start-Stop Function. Safety Shutdowns. Digital Control Panel.
Call For Price Item#: USP000675
NEW

2.00 MW 2008 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, 400 Volt, 3 Phase. 1500 RPM. Turbo, Alternator, Electric Governor. Air / Oil Filters. Automatic Start-Stop Function. Safety Shutdowns. Digital Control Panel.
Call For Price Item#: USP000676
NEW

2.00 MW 2003 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, 400 Volts, 3 Phase. 1500 RPM. Turbo. Alternator. Electric Governor. Air/Oil Filters. Voltage Regulator. EMCP Digital Control Panel. Automatic Start-Stop Function. Safety...
Call For Price Item#: USP000678
NEW

2.00 MW 2008 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, 400 Volt, 3 Phase. 1500 RPM. Turbo, Alternator, Electric Governor. Air / Oil Filters. Automatic Start-Stop Function. Safety Shutdowns. Digital Control Panel.
Call For Price Item#: USP000679
NEW

2.00 MW 2008 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, 400 Volt, 3 Phase. 1500 RPM. Turbo, Alternator, Electric Governor. Air / Oil Filters. Automatic Start-Stop Function. Safety Shutdowns. Digital Control Panel.
Call For Price Item#: USP000973

765 kW Caterpillar G3516TA Natural Gas Generator

No Enclosure, 60 Hz, 765 kW continuous/820 kW prime, 480 Volt, 3 Phase, 1200 RPM. Unit comes complete with rebuilt Caterpillar SR4 brushless generator end, standard air cleaner, water cooled...
Call For Price Item#: USP000974

765 kW Caterpillar G3516 Natural Gas Generator

~13000 Hours. No Enclosure, 60 Hz, 480 Volt, 3 Phase. Includes Adem electronics, mounted radiator, fan, fan drive, Caterpillar SR4 brushless generator end, circuit breaker, meter panel, safety shutdowns, electric...
Call For Price Item#: USP000979

35 kW Caterpillar Olympian G35 Natural Gas Generator

Weather Enclosure, 60 Hz, 240/480 Volt, 3 Phase, 1800 RPM. Unit comes complete with circuit breaker, meter panel, safety shutdowns, radiator, fan, fan drive, and auto or manual start.
Call For Price Item#: USP000978

25 kW Caterpillar Olympian G25 Natural Gas Generator

Weather Enclosure, 60 Hz, 120/240 Volt, Single Phase. Unit has weather-proof enclosure, safety shutdowns, mounted radiator, fan, fan drive, muffler, 12 volt alternator, electric start, block heater,...
Call For Price Item#: USP000977

15 kW Caterpillar Olympian G15U3S Natural Gas Generator

Weather Enclosure, 60 Hz, 120/240 Volt, Single-phase, with weather-proof enclosure, mounted circuit breaker, meter panel, safety shutdowns, 12 volt alternator, electric start, exhaust muffler, battery...
SOLD Item#: USP000858
NEW

2.06 MW 2007 Caterpillar G3520C Natural Gas Generator

No Enclosure, 60 Hz, Natural Gas Generator --2889 HP --480 volt --1800 RPM --JACKET WATER HEATER --SOLENOID VALVE --EXPLOSION RELIEF VALVE. --AFTERCOOLER --TWO BEARING GEN ALIGNMENT...
SOLD Item#: USP000855
NEW

2.00 MW 2007 Caterpillar G3616 Natural Gas Generator

No Enclosure, 50 Hz, --4000 HP --900 RPM
SOLD Item#: USP000856
NEW

2.00 MW 2005 Caterpillar G3520C Natural Gas Generator

50 Hz, --TWO NEW CATERPILLAR G3520C HIGH VOLTAGE PORTABLE GENERATOR SETS. --2500KVA --1500RPM --6300V --KATO HIGH VOLTAGE GENERATOR END --JACKET WATER HEATER --EXPLOSION RELIEF...
SOLD Item#: USP000857
NEW

2.00 MW 2007 Caterpillar G3520C Natural Gas Generator

No Enclosure, 50 Hz, --FIVE NEW CATERPILLAR G3520C NATURAL GAS PORTABLE GENERATOR SET --2500KVA --400V --1500RPM --JACKET WATER HEATER --EXPLOSION RELIEF VALVE --EMCP II+ CONTROL PANEL
SOLD Item#: USP000852
NEW

1.28 MW 2007 Caterpillar G3520B Natural Gas Generator

No Enclosure, 50 Hz, --THREE NEW CATERPILLAR G3520B NATURAL GAS PORTABLE GENERATOR SETS --1615KVA --1777HP --400V --1500RPM --LOAD SHARE GOVERNOR --JACKET WATER HEATER --EXPLOSION RELIEF...
SOLD Item#: USP000851
NEW

970 kW 2007 Caterpillar G3516 Natural Gas Generator

No Enclosure, 50 Hz, --G3516 NATURAL GAS GENERATOR SET --1500RPM --10,000V --EMCP II+ CONTROL PANEL --2301 LOAD SHARING GOVERNOR --EXPLOSION RELIEF VALVE --DUAL 24V ELECTRIC STARTER --SPARK...
SOLD Item#: USP000575
NEW

800 kW Caterpillar G3516 Natural Gas Generator

No Enclosure, 60 Hz, Unit comes complete with electric start, alternator, #00 housing, 21-inch flywheel, engine gauges, standard air cleaner, safety contacts, and EG3P governor. Rebuilt with...
SOLD Item#: USP000573
NEW

765 kW Caterpillar G3516TA Natural Gas Generator

No Enclosure, 60 Hz, 820 kW prime, 480 Volt, 3 phase, 1200 RPM. Unit comes complete with SR4 brushless generator end, standard air cleaner, water cooled manifolds, magless ignition, EG10P actuator,...
SOLD Item#: USP000574

765 kW Caterpillar G3516 Natural Gas Generator

~13000 Hours. No Enclosure, 60 Hz, 480 Volt, 3 phase. Includes ADEM electronics, mounted radiator, fan, fan drive, SR4 brushless generator end, circuit breaker, meter panel, safety shutdowns, electric start,...
SOLD Item#: USP000576

650 kW 1982 Caterpillar G399TA Natural Gas Generator

~900 Hours. No Enclosure, 60 Hz, 480 Volts. Comes with governor control, thermostat housing, exhaust manifold, turbos, #00 rear housing, and 21-inch industrial flywheel. Load tested, serviced, and painted.
SOLD Item#: USP000849

360 kW 2001 Caterpillar G3412-SITA Natural Gas Generator

200 Hours. No Enclosure, 50 Hz, --450 kVA --Standby Takeout --Caterpillar G3412-SITA Natural Gas Generator Set --9.7:1 compression ratio --CAT SR4 generator --Premium CAT EMCP generator control panel...
SOLD Item#: USP000578

250 kW Caterpillar G3412 Natural Gas Generator

Low Hours. 60 Hz, 480 Volt, 3 phase, SR4 brushless generator end rated 277/480 Volt, 3 phase, 1200 RPM. Comes with expansion tank, gas regulator, carburetor, standard air cleaner, and electric...
SOLD Item#: USP000580

125 kW Caterpillar G125 Natural Gas Generator

Weather Enclosure, 60 Hz, 480 Volt, 3 phase, 1800 RPM. Complete with 3.2 control panel, mounted circuit breaker, mounted radiator, fan, fan drive, exhaust muffler, flex pipe, block heater, and battery...
SOLD Item#: USP000170
NEW

35 kW 2008 Caterpillar Olympian G35F3 Natural Gas Generator

Weather Enclosure, 60 Hz, 20 Available. Single phase, Breaker, 3.2 EMCP Control Panel, Battery Charger, 12 wire, can be reconnected at 3 Phase/50 KW.
SOLD Item#: USP000582

35 kW Caterpillar G35F3S Natural Gas Generator

Weather Enclosure, 60 Hz, 240 Volt, 3 phase, mounted circuit breaker, meter panel, safety shutdowns, 12 Volt alternator, electric start, exhaust muffler, battery with rack, auto or manual start, block...
SOLD Item#: USP000583
NEW

25 kW 2008 Caterpillar Olympian G25 Natural Gas Generator

Weather Enclosure, 60 Hz, 120/240 Volt, single phase. Unit has safety shutdowns, mounted radiator, fan, fan drive, muffler, 12 Volt alternator, electric start, block heater, battery charger, 3.1 auto...
SOLD Item#: USP000587

Caterpillar G3516SITA Natural Gas Generator

60 Hz, Machine shop ready. No welds or sleeves.
SOLD Item#: USP000579
NEW

Caterpillar G3306NA "B" Natural Gas Generator

60 Hz, Engine rated 145 hp @ 1800 RPM. Engine comes complete front hub to flywheel, with hydramechanical governor, Altronic ignition, engine gauges, safety shutdowns, electric start,...
SOLD Item#: USP000584

Caterpillar G3608 Natural Gas Generator

Standard unit with standard block and crankshaft, front and rear covers, block, crankshaft, and cylinder heads.