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Cat 3512C (HD) engines set the standard in the drilling industry. For many years the 3500 has been the preferred choice by drillers due to their high performance, durability, and reliability in the oilfield while maintaining low emissions.The ideal application for the 3512C (HD) engine is mechanical drive for land drilling rigs. 3512C (HD) engines, with ratings: 932-1100 bkW (1250-1475 bhp) @ 1200 rpm meet U.S. EPA Non-road Tier 2 equivalent and CARB Tier 2 equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.
Request a QuoteMaximum Rating1475BHP
EmissionsU.S. EPA Non-road Tier 2
Displacement3574in³
Minimum Rating1250BHP
Bore6.69in
Stroke8.46in
Rated Speed1200r/min
AspirationTurbocharged-Aftercooled
Governor and ProtectionADEM A3
Engine Weight - Net Dry11945lb
Rotation from Flywheel EndCounterclockwise
Oil Change Interval500
Flywheel and Flywheel HousingSAE No. 00
Flywheel Teeth183
Minimum Cooling System - Engine Only41gal (US)
Length105.6in
Width70.5in
Height79.5in
Standard
Separate circuit aftercooler core — corrosion resistant coated (airside), air cleaner (single element w/service indicator)
Dual rear-mounted turbochargers
Optional
Air cleaner and air cleaner mounting
Remote air inlet adapters
Air inlet heater
Standard
ADEM A3 ECU — LH
Electronic fuel injector fuel system (10 amp DC power required todrive electronic engine control unit)
Optional
Local speed throttle control
Throttle position sensors
Load sharing modules
Governor conversion
Standard
Torque converter connections
Thermostats and housing, jacket water pump, gear-drivencentrifugal
Connections for radiator cooling
Dual outlets: 88.9 mm O.D. (3.5 in) elbow hose connections
Separate Circuit Aftercooler (SCAC)
Optional
High gloss black folded core radiators
Coolant regulator conversion
Belt guard and radiator guard
Blower fan
Radiator cover
Fan drive and fan pulleys
Water level switch gauge
Coolant level sensors
Coolant conditioner
Expansion tank
Heat exchanger cooling conversion
Auxiliary water pump
Air separator
Standard
Exhaust manifold — dry, stainless steel bellows
Dual turbochargers with watercooled bearings
Exhaust outlet: 292 mm I.D. (11.5 in), 12-10.5 mm dia. holes EQ SP,376 mm bolt hole dia.
Optional
Flexible exhaust fitting
Elbows and flange
Flange and exhaust adapters
Manifold and mufflers
Standard
Flywheel, SAE No. 0 — 151 teeth
Flywheel housing — SAE No. 0
Standard
Primary fuel filter
Fuel priming pump
Fuel filter — RH spin-on type
Fuel transfer pump
Electronically controlled unit injectors
Standard
Electronic instrument panel
Instrumentation readouts:
Optional
Customer management device
Remote panel display and remote cylinder temperature display
Switches and contactors
Gauges and instrument panels
Standard
Crankcase breather — top-mounted
Oil cooler
Oil filler and dipstick — RH
Oil pump
Oil filter — RH spin-on type
Rear sump oil pan, 250-hour change interval
Oil pan drain valve — 3/4" NPT female connection
Optional
Fumes disposal
Oil pans
Prelube options
Sump pumps
Oil Filters
Standard
Rails — mounting, floor type
Optional
Vibration isolators
Standard
Front housing — two-sided
Optional
Front housing
Flexible couplings
Coupling hub
Front accessory drives
Auxiliary drive shaft
Auxiliary drive pulleys
Front stub shaft
Damper guard removal
Pulleys
Flywheel stub shaft
Standard
ADEM A3 ECU system to provide customer-programmableengine deration strategies to protect against adverse operatingconditions
Emergency stop logic inputs provided at 40-pin customer interfaceconnection
Air inlet shutoff
Optional
Shutoffs
Switches and contractors
Explosion relief valve
Sensors
Oil pressure monitor
Shutoff controls
Corrosion protection
Standard
Air starting motor — RH, 620 to 1034 kPa (90 to 150 psi)
Air silencer
Optional
Air starting motors — electric
Air pressure regulator
Air silencer
Air start controls — manual, electric
Redundant start
Starting aids
Battery sets – 24V
Battery cable and battery rack
Standard
Paint — Cat yellow
Vibration damper and guard
Lifting eyes
B-Series LAND
Optional
Battery chargers
Charging alternators
Optional
Flexible fuel lines
Fuel cooler
Water/fuel separator
Fuel level switch
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