3512E Dynamic Gas Blending SCAC Petroleum Engine Well Servicing Engines

Well Service Engines 3512E DGB Tier 4 Final

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Key Specs

Maximum Rating
2500 BHP
1864 bkW
U.S. EPA Tier 4 Final
U.S. EPA Tier 4 Final
3596 in³
58.9 l


The new land well service 3512E Dynamic Gas Blending™ dual fuel engine will be certified to U.S. EPA Tier 4 Final emissions standard while offering the highest natural gas substitution in its class. The 3512E DGB will include factory solutions that emit approximately the same or less greenhouse gas (GHG) emissions as a comparable 3512E Tier 4 Final diesel engine. Additionally, the dual fuel performance of the new 3512E DGB has significantly increased compared to similar engines in its class with the ability to achieve 85% diesel displacement, further allowing for lower operating costs.

Product Specifications for 3512E DGB Tier 4 Final

Maximum Rating 2500 BHP 1864 bkW
Displacement 3596 in³ 58.9 l
Minimum Rating 2250 BHP 1678 bkW
Aspiration SCAC and ATAAC SCAC and ATAAC
Flywheel and Flywheel Housing SAE No. 0 SAE No. 0
Flywheel Teeth 151 151
Stroke 8.5 in 215 mm
Bore 6.7 in 170 mm
Governor and Protection Electronic (ADEM™ A5) / DGB System (ADEM™ A6) Electronic (ADEM™ A5) / DGB System (ADEM™ A6)
Rotation from Flywheel End Counterclockwise Counterclockwise
Emissions U.S. EPA Tier 4 Final U.S. EPA Tier 4 Final
Length 138 in 3494 mm
Width 91 in 2308 mm
Height 108 in 2747 mm
Weight 22352 lb 10139 kg
Lube Oil System - Refill 52 gal (US) 170 l
Cooling System 52 gal (US) 197 l

3512E DGB Tier 4 Final Standard Equipment

Control System

  • Cat ADEM A6 DGB controls

Cooling System

  • Thermostats and housing, jacket and separate circuit water pump, gear-driven centrifugal
  • SCAC/ATAAC system

Exhaust System

  • Dual DOC
  • Exhaust manifold, dry, bellows connection
  • Four turbochargers with watercooled bearings
  • Exhaust outlet, dual 10-inch ANSI round flange as part of aftertreatment

Flywheels & Flywheel Housing

  • Flywheel, SAE No. 0, 151 teeth

Fuel System

  • Engine mounted Gas filter, water coalescing type
  • Clean fuel module boost pump
  • Fuel transfer pump
  • Common rail fuel system
  • Primary/secondary fuel filters
  • Fuel priming pump (electric)


  • Product LinkTM engine monitoring


  • Vibration damper and guard
  • Lifting eyes
  • Paint - Caterpillar yellow

Lube System

  • Closed Crankcase ventillation - top mounted
  • Fumes disposal
  • Oil filter - RH spin-on type
  • Oil cooler
  • Oil filler and dipstick - LH
  • Oil scavenger pump
  • Oil pump
  • Oil pan drain valve, 1" NPT female connection

Mounting System

  • Trunion front support
  • Flywheel housing - two-sidedfailure options

Protection System

  • Emergency stop logic inputs provided at 70-pin customer interface connection
  • ADEM A5 and A6 ECU system to provide customer programmable engine deration strategies to protect against adverse operating conditions

Aftertreatment Mounting

  • CEM/muffler support package Heavy-duty air cleaners (2 element with precleaners)

3512E DGB Tier 4 Final Optional Equipment

Charging System

  • 80, 95, or 150 amp charging alternator

Control System

  • Local speed throttle control
  • Throttle position sensors

Cooling System

  • Coolant conditioner
  • JW outlet coupling-style connections
  • JW inlet weld-flange connection
  • SCAC/ATAAC inlet and outlet coupling-style connections
  • JW inlet and outlet hose barb connections
  • SCAC/ATAAC inlet and outlet hose barb connections Water level switch gauge
  • JW Heater installation connections

Exhaust System

  • Flex pipe kit
  • Residential mufflers (painted steel and stainless steel) with outlet elbow and rain cap

Flywheels & Flywheel Housing

  • Allison and Twin Disc flywheel options


  • Product Link harness extensions
  • LAN adapters

Lube System

  • Rear sump oil pan - 250-hour change interval
  • Front deep sump oil pan - 500-hour change interval

Power Take-Offs

  • Front Crankshaft Adapter
  • Front crankshaft stub shaft
  • Accessory drive - upper RH

Protection System

  • Hydraulic actuated air shutoff

Starting System

  • Dual hydraulic starter - LH
  • Manual engine barring device
  • Hydraulic starter - LH
  • EIRS automatic start/stop system is available on factory orders as an attachment

Transmission Attachments

  • Transmission oil cooler
  • Transmission oil cooler 2-1 connections
  • Torque converter connections


  • Air compressor

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