Overview

Cat 3512 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 3512 engine is mechanical drive for land drilling rigs. 3512 engines, with ratings: 761-1342 bkW (1020-1800 bhp) @ 1200-1900 rpm. Not emissions certified, available for non-regulated areas.

Specifications

Units: 
Maximum Rating
Emissions Non-certified
Displacement
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Benefits & Features

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- 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 rigintegration- Wide range of attachments enable configurationflexibility- Inner base three-point generator mounting maintainsfactory alignment- Single lifting point simplifies installation work

Engine Control and Protection

- Woodward 3161 governor- E-stop pushbutton on instrument panel - Air shutoff and explosion relief valves available - Extra alarms, inputs, and outputs available

  October 8, 2024

Specifications

Units: 
Engine Specifications
Maximum Rating
Emissions Non-certified
Displacement
Minimum Rating
Bore
Stroke
Rated Speed
Aspiration Turbocharged-Aftercooled
Governor and Protection W3161
Engine Weight - Net Dry
Rotation from Flywheel End Counterclockwise
Oil Change Interval 500
Flywheel and Flywheel Housing SAE No. 00
Flywheel Teeth 183
Capacity for Liquids
Minimum Cooling System - Engine Only
Dimensions
Length
Width
Height

Benefits & Features

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- 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 rigintegration- Wide range of attachments enable configurationflexibility- Inner base three-point generator mounting maintainsfactory alignment- Single lifting point simplifies installation work

Engine Control and Protection

- Woodward 3161 governor- E-stop pushbutton on instrument panel - Air shutoff and explosion relief valves available - 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 generator set is full-load tested to ensureproper engine performance.- Generator sets are assembled, tested, andvalidated as a package to ensure performance, reliabilityand durability.

Product Support Offered Through Global Cat Dealer Network

- More than 2,200 dealer outlets- Cat factory-trained dealer technicians service everyaspect of your Cat petroleum product- Worldwide parts availability, service, and warranty- Preventive maintenance agreements available for repairbefore-failure options- S•O•SSM program matches your oil and coolant samplesagainst 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 these manufacturing processes enablesCaterpillar to produce high quality, dependable products.

Web Site

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

Standard Equipment

  • Air Inlet System
    • Corrosion-resistant aftercooler core
    • Regular duty air cleaner
    • Service indicator
  • Control System
    • Governor, Woodward 3161 — RH
    • Pneumatic control
    • Governor control - positive locking
  • Cooling System
    • Thermostats and housing (dual outlet)
    • Jacket water pump, gear driven
  • Exhaust System
    • Dry exhaust manifold
    • Exhaust flexible fitting, adapters, and flanges
  • Flywheel and Housing
    • SAE No. 00 flywheel
    • SAE No. 00 flywheel housing
    • SAE standard rotation
  • Fuel System
    • Fuel filter
    • Fuel transfer pump
    • Flexible fuel lines
    • Fuel priming pump
  • Instrumentation
    • Analog instrument gauges:
  • Lubrication System
    • Crankcase breather
    • Oil cooler
    • Oil filter
    • Shallow oil pan
    • Oil drain extension, 2 in NPT female connection
  • Mounting System
    • Rails, mounting, floor type
  • Power take-offs
    • Accessory drive
    • Front housing, two-sided
  • Protection System
    • Manual shutoff control, LH
    • Junction box
    • Safety shutoff protection, energized to shutdown
  • Starting System
    • Air starting motor
    • Air silencer
  • General
    • Paint - Cat yellow
    • Vibration damper and guard
    • Lifting eyes

Optional Equipment

  • Air Inlet System
    • Heavy duty air cleaner
    • Remote air inlet adapters
  • Control System
    • Load sharing governor, 2301A
    • Load sharing module
    • Governor conversion to 0-200 mA direct rack control
    • Local speed throttle control
    • Throttle position sensors
  • Cooling System
    • High gloss black folded core radiators and conventionalcore radiators
    • Belt guard
    • Blower fan
    • Fan drive and fan pulley
    • Radiator cover
    • Water level switch gauge
    • Air separator
    • Coolant level sensors
    • Connections
  • Exhaust System
    • Exhaust elbows
    • Exhaust mufflers
  • Fuel System
    • Primary fuel filter
  • Generator and Attachments
    • Low voltage extension box
    • Potential and current transformers
    • Air filter
    • Cable access box
    • Bearing RTDs
  • Instrumentation
    • Customer management device
    • Gauges and instrumentation panels
    • Switches and contactors
  • Lubrication System
    • Crankcase fumes disposal
    • Oil pan accessories
  • Power Take-off
    • Crankshaft pulley
    • Front stub shaft
    • Charging alternator
    • Air compressor
  • Protection System
    • Explosion relief valves (3)
    • Shutoffs
    • Switches and contactors
  • Starting System
    • Manual air starter
    • Air pressure regulator
  • General
    • Flywheel guard

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