3508B Land Mechanical Drilling Engine

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Product Design

 - Developed specifically to meet the demands of oil and gas applications
 - Proven reliability and durability
 - Robust diesel strength design prolongs life and lowers owning and operating costs
 - Broad torque curve optimized for petroleum mechanical drive applications
 - Market-leading power density
 - Designed to perform in oilfield conditions, including high ambient and high altitude applications
 - Long overhaul life proven in oilfield applications
 - Core engine components designed for reconditioning and reuse at overhaul

Ease of Installation

 - Inner-outer base mounting configuration simplifies rig integration
 - Wide range of attachments enable configuration flexibility
 - Inner base three-point generator mounting maintains factory alignment
 - Single lifting point simplifies installation work

Advanced Digital Engine Management

 - ADEM A3 engine management system provided engine control, monitoring, and protection.


 - E-stop pushbutton on instrument panel
 - Air shutoff and explosion relief valves available
 - Configurable alarm, derate, and shutdown set points
 - Extra alarms, inputs, and outputs available

Custom Packaging

For any petroleum application, trust Caterpillar to meet your project needs with custom factory generator sets and mechanical packages. Cat engines, generators, controls, radiators, and transmissions can be custom designed and matched in collaboration with our local dealers to create unique solutions. Custom packages are globally supported and are covered by a one year warranty after startup.


Every Cat engine set is full-load tested to ensure proper engine performance.

Product Support Offered Through the Global Cat Dealer Network

More than 2,200 dealer outlets
 - Cat factory-trained dealer technicians service every aspect of your Cat petroleum product
 - Worldwide parts availability, service, and warranty
 - Preventive 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 Experience

Ownership of manufacturing processes enables Caterpillar to produce high quality, dependable products

Web Site

For all your petroleum power requirements, visit www.cat.com/oilandgas.

Engine Specifications
Maximum Rating 671 bkW (900 BHP)
Emissions Non-certified
Displacement 34.5 l (2111 inu00b3)
Minimum Rating 567 bkW (760 BHP)
Bore 170 mm (6.69 in)
Stroke 190 mm (7.48 in)
Rated Speed 1200 r/min (1200 r/min)
Aspiration Turbocharged-Aftercooled
Governor and Protection ADEM A3
Engine Weight - Net Dry 4309 kg (9500 lb)
Oil Change Interval 500
Rotation from Flywheel End Counterclockwise
Flywheel and Flywheel Housing SAE No. 00
Flywheel Teeth 151
Capacity for Liquids
Minimum Cooling System - Engine Only 103 l (27 gal (US))
Length 2136 mm (84.1 in)
Width 1702 mm (67 in)
Height 2024 mm (79.7 in)

Standard Equipment

  • Air Inlet System
    • Separate circuit aftercooler core — corrosion resistant coated (airside), air cleaner (single element w/service indicator)
    • Dual rear-mounted turbochargers
  • Control System
    • ADEM A3 ECU — LH
    • Electronic fuel injector fuel system (10 amp DC power required todrive electronic engine control unit)
  • Cooling System
    • 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)
  • Exhaust System
    • 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.
  • Flywheels and Flywheel Housing
    • Flywheel, SAE No. 0 — 151 teeth
    • Flywheel housing — SAE No. 0
  • Fuel System
    • Primary fuel filter
    • Fuel priming pump
    • Fuel filter — RH spin-on type
    • Fuel transfer pump
    • Electronically controlled unit injectors
  • Instrumentation
    • Electronic instrument panel
    • Instrumentation readouts:
  • Lube System
    • 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
  • Mounting System
    • Rails — mounting, floor type
  • Power Take-Offs
    • Front housing — two-sided
  • Protection System
    • 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
  • General
    • Paint — Cat yellow
    • Vibration damper and guard
    • Lifting eyes
    • B-Series LAND

Optional Equipment

  • Air Inlet System
    • Air cleaner and air cleaner mounting
    • Remote air inlet adapters
    • Air inlet heater
  • Charging System
    • Battery chargers
    • Charging alternators
  • Control System
    • Local speed throttle control
    • Throttle position sensors
    • Load sharing modules
    • Governor conversion
  • Cooling System
    • 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
  • Emissions Certifications
    • IMO Certification and European Union Certification
  • Exhaust System
    • Flexible exhaust fitting
    • Elbows and flange
    • Flange and exhaust adapters
    • Manifold and mufflers
  • Fuel Systems
    • Flexible fuel lines
    • Fuel cooler
    • Water/fuel separator
    • Fuel level switch
  • Instrumentation
    • Customer management device
    • Remote panel display and remote cylinder temperature display
    • Switches and contactors
    • Gauges and instrument panels
  • Lube System
    • Fumes disposal
    • Oil pans
    • Prelube options
    • Sump pumps
    • Oil Filters
  • Mounting System
    • Vibration isolators
  • Power Take-Offs
    • 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
  • Protection System
    • Shutoffs
    • Switches and contractors
    • Explosion relief valve
    • Sensors
    • Oil pressure monitor
    • Shutoff controls
    • Corrosion protection
  • Starting System
    • 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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