New CAT Equipment

3512C (HD) Land Mechanical Drilling Engine

Cat 3512C (HD) 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 while maintaining low emissions.The ideal application for the 3512C (HD) engine is mechanical drive for land drilling rigs.3512C (HD) engines, with ratings: 932-1100 bkW (1250-1475 bhp) @ 1200 rpm meet U.S. EPA Non-road Tier 2 equivalent and CARB Tier 2 equivalent emission standards. They are available using U.S. EPA and EU Flexibility, and for other regulated and non-regulated areas.

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    Product Specs

    Engine Specifications

    Minimum Rating 1250 BHP
    Maximum Rating 1475 BHP
    Emissions U.S. EPA Non-road Tier 2
    Rated Speed 1200 r/min
    Bore 6.69 in
    Stroke 8.46 in
    Displacement 3574 in³
    Aspiration Turbocharged-Aftercooled
    Governor and Protection ADEM A3
    Engine Weight - Net Dry 11945 lb
    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 41 gal (US)


    Length 105.6 in
    Width 70.5 in
    Height 79.5 in