3508B Land Mechanical Drilling Engine

3508B Land Mechanical Drilling Engine

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 ...
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Engine Specifications

Maximum Rating
Minimum Rating
Rated Speed
Governor and Protection
Engine Weight - Net Dry
Rotation from Flywheel End
Oil Change Interval
Flywheel and Flywheel Housing
SAE No. 00
Flywheel Teeth

Capacity for Liquids

Minimum Cooling System - Engine Only
27gal (US)



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.

Standard Equipment:

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
    • 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