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 inĀ³
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