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Well stimulation operations in the oilfield are complex and demanding. The 3500 engine family for well stimulation operations was specifically developed to meet the highest standards in performance, durability, and reliability. Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. 3512B engines, with ratings: 1491-1678 bkW (2000-2250 bhp) @ 1900 rpm meet U.S. EPA Marine Tier 1 equivalent and U.S. Non-road EPA Tier 1 equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.
Request a QuoteMaximum Rating2250BHP
Displacement3173in³
Minimum Rating2000BHP
AspirationTurbocharged-Aftercooled
Flywheel and Flywheel HousingSAE No. 0
Flywheel Teeth151
Stroke7.5in
Bore6.7in
EmissionsNon-Current EPA, Non-Road Mobile Tier 1
Length111.3in
Width70.6in
Height73.3in
Weight10590lb
Standard
Separate circuit aftercooler core — corrosion resistant coated (air side), 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 to drive 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-driven centrifugal
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
No standard instrumentation
Optional, remote instrumentation available
Service meter
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
Trunion front support
Optional
Base remova
Vibration isolators
Rails
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-programmable engine deration strategies to protect against adverse operating conditions
Emergency stop logic inputs provided at 40-pin customer interface connection
Air inlet shutoff
Optional
Shutoffs
Switches and contractors
Explosion relief valve
Sensors
Oil pressure monitor
Shutoff controls
Corrosion protection
Standard
Paint — Cat yellow
Vibration damper and guard
Lifting eyes
B-Series LAND
Optional
Battery chargers
Charging alternators
Optional
IMO Certification and European Union Certification
Optional
Flexible fuel lines
Fuel cooler
Water/fuel separator
Fuel level switch
Optional
Marine society conversion
Spray shielding
Optional
Air starting motors — electric
Air pressure regulator
Air silencer
Hydraulic starter
Air start controls — manual, electric
Redundant start
Starting aids
Battery sets - 24V
Battery cable and battery rack
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