3512C (HD)Well ServicePetroleum Engine

1678 bkW (2250 bhp)1865 bkW (2500 bhp)

1900 rpm

CAT® ENGINE SPECIFICATIONSV-12, 4-Stroke-Cycle-DieselEmissions . . . . . . . . . . . . . . . . . . . . . . . . . Non-current EPA Tier 2Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 mm (6.7 in)Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 mm (8.5 in)Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 58.6 L (3574 in3)Aspiration . . . . . . . . . . . . . . . . . . . . . Turbocharged-AftercooledGovernor and Protection . . . . . . . . . . . Electronic ADEM™ A4Engine Weight, net dry (approx) . . . . . . . . . . . . . . . . . . . . . . . . .Capacity for Liquids Lube Oil System (refill) . . . . . . . . . . . . . . 151.4 L (40 U.S. gal) Cooling System (engine only) . . . . . . . . 134 L (35.4 U.S. gal)Oil Change Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 hoursRotation (from flywheel end) . . . . . . . . . . . . CounterclockwiseFlywheel and Flywheel Housing . . . . . . . . . . . . . . . . SAE No. 0Flywheel Teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151Generator set weight includes — inner and outer base, radiator, generator, engine, and Dynamic Gas Blending system

FEATURES

Dynamic Gas Blending System- Closed loop control system continuously optimizes gas

substitution- Tolerates wide range of Caterpillar Methane Number gas

quality- Capability to automatically adjust to changing gas quality- Leverages current hardware from G3512 product line while

minimizing change to core diesel engine- Maintains existing diesel maintenance and overhaul

intervals proven in oilfield applications

Engine Design- Demonstrated reliability and durability - Assembled, tested, and validated as a package to minimize

package vibration and maximize component life- Market-leading power density- Designed to perform in oilfield conditions, including high

ambient high altitude applications- Long overhaul life proven in oilfield applications- Core engine components designed for reconditioning and

reuse at overhaul

Advanced Digital Engine ManagementADEM A4 control system providing integrated ignition, speed governing, protection, and controls. ADEM A4 has improved: user interface, display system, shutdown controls, and system diagnostics.

Safety - E-Stop pushbutton on instrument panel- Air shutoff and explosion relief valves- Configurable alarm and shutdown features- Extra alarm switches available for customer-supplied panel

Ease of Installation and Packaging - Dynamic Gas Blending system automatically activates

when gas supply is detected

Reduction of Owning and Operating Costs- Long filter change intervals, aligned with service intervals- Excellent fuel economy — direct injection electronic unit

injectors precisely meter fuel- Dynamic Gas Blending can drastically reduce fuel costs

Custom Packaging For any petroleum application, trust Caterpillar to meet your exact needs with a factory custom package. Anything your project requires can be custom designed and matched to create a one-of-a kind solution. Custom packages are globally supported and are covered by a one-year warranty after startup.

Full Range of Attachments Large variety of factory-installed engine attachments reduces packaging time

Product Support Offered Through Global Cat Dealer NetworkMore than 2,200 dealer outletsCat factory-trained dealer technicians service every aspect of your petroleum engineCat parts and labor warrantyPreventive maintenance agreements available for repair-before-failure options

S•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine:- Internal engine component condition- Presence of unwanted fluids- Presence of combustion by-products- Site-specific oil change interval

Over 80 Years of Engine Manufacturing ExperienceOwnership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.- Cast engine blocks, heads, cylinder liners, and flywheel

housings- Machine critical components- Assemble complete engine

WebsiteFor more information on Dynamic Gas Blending, visit http://cc685.com/3500_dgb

LEHW0191-00 Page 1 of 4

ATAAC with Dynamic Gas Blending

Image shown withoptional attachments.

3512C (HD) WELL SERVICE PETROLEUM ENGINEwith Dynamic Gas Blending1678 bkW (2250 bhp) @ 1900 rpm1865 bkW (2500 bhp) @ 1900 rpm

LEHW0191-00 Page 2 of 4

OPTIONAL ATTACHMENTS Air CompressorsAir Inlet SystemAir cleanerRemote air inlet adaptersAir inlet heaterCharging SystemBattery chargersCharging alternators

Control SystemThrottle position sensorsCooling SystemCoolant level sensorCoolant conditionerConnectionsEmissions CertificationsIMO Certification and European Union CertificationExhaust SystemFlexible exhaust fittingElbowsFlangeFlange and exhaust adaptersManifoldMufflersFuel SystemsFlexible fuel linesFuel coolerFuel priming pumpsWater/fuel separatorFuel level switch

Gauges and Instrument PanelsEngine mount premium panelRemote instrumentationLube SystemRH oil filtersOil pan accessoriesOil pan front sump — 250 hrsHigh capacity oil pan — 500 hrsPower Take-OffsFront Accessory DrivesAuxiliary Drive ShaftAuxiliary Drive PulleysFront Stub ShaftFront Crankshaft AdapterPulleysProtection SystemCorrosion ProtectionStarting SystemAir starting motorsAir pressure regulatorAir silencerHydraulic starterBattery sets— 24VBattery cable

STANDARD EQUIPMENT Air Inlet SystemAir-to-air aftercooled (ATAAC)(512DW04, 512DW05, 512DW06, 512DW07)Air cleaners (single element w/service indicator)Control SystemADEM A3 ECU, LHWith electronic fuel injector fuel system (10 amp DC power

required to drive electronic engine control module)Cooling SystemATAAC (512DW04, 512DW05, 512DW06, 512DW07)Torque converter connectionsThermostats and housing, jacket water pump, gear-driven

centrifugal (gear-driven centrifugal pumps)Connections for radiator coolingDual outlets: 88.9 mm O.D. (3.5 in) elbow hose connectionsExhaust SystemLand Well Service Engine: Exhaust manifold, dry, slip joint with stainless steel wire seal Four turbochargers with watercooled bearings

(center-mounted) Exhaust outlet, dual 203 mm (8 in) round flangeOffshore Well Service Engine: Gas tight exhaust manifold Four turbochargers with watercooled bearings Exhaust outlet: 203 mm I.D. (8 in), 8-10.5 mm dia. holes

EQ SP, 250.95 mm bolt hole dia.Flywheels & Flywheel HousingFlywheel, SAE No. 0, 151 teethFlywheel housing, SAE No. 0Fuel SystemPrimary fuel filterFuel priming pumpFuel filter, RH spin-on typeFuel transfer pumpElectronically controlled unit injectors

InstrumentationNo standard instrumentationOptional — remote instrumentation availableService meterLube SystemCrankcase breather — top-mountedOil coolerOil filler and dipstick — RHOil pumpOil filter — RH spin-on typeRear sump oil pan, 250-hour change intervalOil pan drain valve, 3/4" NPT female connectionFumes disposalScavenger pumpMounting SystemTrunion front supportPower Take-OffsATAAC (512DW04, 512DW05, 512DW06, 512DW07)Front housing, two-sidedProtection SystemADEM A3 ECU system to provide customer programmable

engine deration strategies to protect against adverse operating conditions

Emergency stop logic inputs provided at 40-pin customer interface connection

ATAAC (512DW04, 512DW05, 512DW06, 512DW07)Single Air inlet shutoffGeneralPaint, Caterpillar yellowVibration damper and guardLifting eyes

3512C (HD) WELL SERVICE PETROLEUM ENGINEwith Dynamic Gas Blending1678 bkW (2250 bhp) @ 1900 rpm1865 bkW (2500 bhp) @ 1900 rpm

LEHW0191-00 Page 3 of 4

*Other engine ratings are available. Please contact dealer for performance data.

PERFORMANCE CURVES

Turbocharged-AftercooledWell Service Rating

DM8302-00 — 1678 bkW (2250 bhp) @ 1900 rpm*

BS

FC

g/b

kW-h

rE

ng

ine

Po

wer

bkW

To

rqu

eN

•m

Engine Speed - rpm

800600 1000 1200 1400 1600 1800

8543

7187

5831

4475

1678

1305

932

559

219

213

207

201

BS

FC

lb/b

hp

-hr

En

gin

e Po

wer

bh

pT

orq

ue

lb-ft

6300

5300

4300

3300

2250

1750

1250

750

.36

.35

.34

.33

Heat Rejection Data

Engine Speed Engine Power Rej to JW Rej to Atmos Rej to Exh From 2nd Stage Aft Clr

rpm bkW bhp bkW Btu/min bkW Btu/min bkW Btu/min bkW Btu/min

1900 1678 2250 685 39012 126 7165 1528 86897 483 27468

BS

FC

g/b

kW-h

rE

ng

ine

Po

wer

bkW

To

rqu

eN

•m

Engine Speed - rpm

600 800 1000 1200 1400 1600 1800 2000

9492

7458

5424

3390

1491

1119

746

373

219

213

207

201

BS

FC

lb/b

hp

-hr

En

gin

e Po

wer

bh

pT

orq

ue

lb-ft

7000

5500

4000

2500

2000

1500

1000

500

.36

.35

.34

.33

DM8308-00 — 1864 bkW (2500 bhp) @ 1900 rpm*

Heat Rejection Data

Engine Speed Engine Power Rej to JW Rej to Atmos Rej to Exh From 2nd Stage Aft Clr

rpm bkW bhp bkW Btu/min bkW Btu/min bkW Btu/min bkW Btu/min

1900 1864 2500 733 41685 140 8018 1766 100432 536 30482

3512C (HD) WELL SERVICE PETROLEUM ENGINEwith Dynamic Gas Blending1678 bkW (2250 bhp) @ 1900 rpm1865 bkW (2500 bhp) @ 1900 rpm

Module Dimensions

Length 3120 mm 122.83 in

Width 1719.5 mm 67.70 in

Height 2905.3 mm 114.38 in

Engine Weight, net dry (approx)

RATING DEFINITIONS AND CONDITIONSRatings are based on SAE J1995 standard conditions of 100 kPa (29.61 in Hg) and 25°C (77°F). These ratings also apply at ISO3046/1, DIN6271, and BS5514 standard conditions of 100 kPa (29.61 in Hg), 27°C (81°F), and 60% relative humidity. Ratings are valid for air cleaner inlet temperatures up to and including 50°C (122°F).

Diesel fuel consumption has a tolerance of +5% and is based on fuel oil of 35° API [16°C (60°F)] gravity having an LHV of 42 780 kJ/kg (18 390 Btu/lb) when used at 29°C (85°F) and weighing 838.9 g/liter (7.001 lbs/U.S. gal). Fuel consumption shown with all oil, fuel, and water pumps, engine driven.

Gaseous fuel consumption will be determined through site-specific testing and will vary as a result of gas quality, environmental conditions, and operating load factors.

Information contained in this publication may be considered confidential. Discretion is recommended when distributing.Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication.

CAT, CATERPILLAR, their respective logos, ADEM, “Caterpillar Yellow” and the “Power Edge” trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

Performance Number: DM7044-00 ©2013 CaterpillarLEHW0191-00 (6-13) All rights reserved.

Right Side View Front View

1719.5 mm67.70 in.

3120 mm122.83 in.

2905.3 mm114.38 in.