G3512 750kW Gas Generator Set

Displacement	3173in³
Emissions/Fuel Strategy	U.S. EPA Certified for Non-Emergency Stationary Genset
Frequency	60 Hz
Fuel Type	Natural Gas, Hydrogen Blend (up to 5%)
Gas Standby Rating	750 ekW @ 0.8pf
RPM	1800 rpm

Aspiration	TA
Bore	6.7in
Displacement	3173in³
Engine Model	G3512
Governor Type	ADEM A4
Stroke	7.5in

Height	99.4in
Length	205.7in
Weight	27500lb
Width	90in

Standard Equipment:

Dual air cleaners, 1 per side, with service indicator
Two-element single-stage air cleaner with enclosure and service indicator

Cat ECS 100

Engine driven pumps for jacket water and separate circuit aftercooler
Jacket water and SCAC engine-driven pumps
Jacket water and SCAC thermostats
LH or RG connections when radiator is not selected
Package mounted radiator

NOx sensor based air-fuel-ratio control
0.5 to 5 psi engine fuel inlet pressure
Pipeline Natural Gas: 800-1000 BTU/scf and 70-100 Methane Number
Gas Train: NFPA37 and CSA B149.3

Individual exhaust port and turbocharger outlet wired to integrated temperature sensing module (ITSM) with GCEM providing alarms and shutdowns
Dry exhaust manifolds, insulated and shielded
Cat-flanged face outlet on turbocharger

Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve
Throttle plate, 24V DC actuator, controlled by GECM
Engine-installed electronic control valve
Gas pressure regulator
24V DC energized-to-run (ETR) gas shutoff valve

Crankshaft vibration damper and guard
Operation and maintenance manuals
Parts book
Paint- Caterpillar Yellow except rails and radiators gloss black
RH Service

Gear type lube oil pump
Cartridge style oil filter

Anti-condensation space heater
Winding temperature detectors
NEMA Class H insulation
SR5
Permanent Magnet Excitiation
Caterpillar's Digital Voltage Regulator (CDVR) including reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, and a min/max exciter

ADEM A4

Individual Cylinder Detonation Sensitive Timing (DST)
Electronic Ignition System (controlled by ADEM A4)

ADEM A4 speed governor with 4 to 20ma (0V to 5V) speed input

24V DC starting motors
Batteries with rack and cables
Electric Starter

Optional Equipment:

Mounting brackets and piping
Air cleaner with precleaner

S LSI, G LSIG, P LSIG-P, 4th Digit Type
Right, left, rear mounted
1200A, 3 Pole, UL-100% Rated P-Frame Circuit Breakers
1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers
2000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers
100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating
3-pole (IEC 947-2 rated)
Frame mounting

Remote annunciator
Local alarm module
Local PC monitoring
Engine failure relay
Remote PC monitoring

Coolant level drain line with valves, fan with guard
Remote radiator for JW and SCAC circuits, level switch included but not wired
Inlet/Outlet connections

305 mm (12in.) elbow
18, 25 dBA Attenuation
Flexible fittings
305 mm (12 in.) muffler
305mm (12 in) spark arresting muffler
305 mm (12 in.) flange

3, 0-100 kPag, 4-20mA gas train pressure sensors

Special paint order
US AID emblem
Tool set
Digital diagnostic tool

Cable access box
Generator air filter
European bus bars
Low voltage extension box
Bearing temperature detectors

20A, 24VDC battery charger
Battery with cables and rack
Jacket water heater
45A, 24V charging alternator (requires engine driven pumps)

60 Hz: USA

What Our Customers Are Saying About Us

Gregory Poole Equipment Company

4.0

Based on 58 reviews

review us on

Tom Corona

21:51 06 May 26

Rich Stidd

22:10 02 May 26

Carlos Virgilio Sauceda Rivera

20:55 23 Mar 26

John Karpathian

16:21 24 Jan 26

Clean store and great employees

Hunter Flaugher

12:56 06 Aug 25

Hydraulic pump shop is unmatched. I made the mistake of going somewhere else before bringing my pump here. These guys were more than helpful and friendly. Went out of their way to help me find a solution for my problem even when it didn’t benefit them. This is how businesses should be run. I won’t go anywhere else.

Brian Hrudka

16:45 12 Feb 25

Too bad Poole Cat Field Service is better at invoicing than actually getting my machines moving.

A prompt and courteous technician arrived, and correctly diagnosed two problems with my mini Ex. Thank you. I corrected those problems, but machine still did not work.

He diagnosed a fuel problem as a clogged filter, rather than a bad fuel pump which I managed to diagnose. I also figured out, via help on the internet, that the fuel shut-off solenoid was bad.

Machine runs fine now. So my advice is to check the internet, before letting Poole charge you $870 for a two hour field visit. And you can find a perfectly fine aftermarket fuel pump for $20 rather than the $250 that Poole charges... and it arrives faster,

Jacey Price

21:04 05 Dec 24

Need to teach a tech how to drive a service truck. Around 2:48 on highway 40 east, the truck pictured (plate ending in 8236) flew across 3 lanes of traffic to meet the Cleveland rd exit. Almost hit a semi and caused me to swerve with my children in the car. Glad making the exit was more important than children’s lives.