3508B

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Overview

Cat 3508B 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.The ideal application for the 3508B engine is mechanical drive for land drilling rigs.Cat engines are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.3508B engines, with ratings: 567-671 bkW (760-900 bhp) @ 1200 rpm meet U.S. EPA Non-road Tier 1 equivalent and CARB Tier 1 equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

Engine Specifications

Units:
Minimum Rating 760.0 bhp 567.0 bkW Less
Maximum Rating 900.0 bhp 671.0 bkW Less
Emissions Non-certified Non-certified Less
Rated Speed 1200.0 RPM 1200.0 RPM Less
Bore 6.69 in 170.0 mm Less
Stroke 7.48 in 190.0 mm Less
Displacement 2111.0 in3 34.5 L Less
Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled Less
Governor and Protection ADEM A3 ADEM A3 Less
Engine Weight, net dry 9500.0 lb 4309.0 kg Less
Oil Change Interval 500 500 Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Flywheel and Flywheel Housing SAE No. 00 SAE No. 00 Less
Flywheel Teeth 151 151 Less

Capacity for Liquids

Minimum Cooling System (engine only) 27.0 gal 103.0 L Less

Dimensions

Length 84.1 in 2136.0 mm Less
Width 67.0 in 1702.0 mm Less
Height 79.7 in 2024.0 mm Less

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.

Safety

- 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.

Testing

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.catoilandgasinfo.com

3508B 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

3508B 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

Spare Parts Kits

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

Cat® Dealer Service

Buy any piece of Cat® equipment and also get the full support and commitment of your local Cat Dealer.

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