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Key Specs
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: 671 bkW (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.
| Maximum Rating | 900 BHP 671 bkW |
| Emissions | Non-certified Non-certified |
| Displacement | 2111 in³ 34.5 l |
| Bore | 6.7 in 170 mm |
| Stroke | 7.5 in 190 mm |
| Rated Speed | 1200 r/min 1200 r/min |
| Aspiration | Turbocharged-Aftercooled Turbocharged-Aftercooled |
| Governor and Protection | ADEM A3 ADEM A3 |
| Engine Weight - Net Dry | 9500 lb 4309 kg |
| Oil Change Interval | 500 500 |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Flywheel and Flywheel Housing | SAE No. 00 SAE No. 00 |
| Flywheel Teeth | 151 151 |
| Minimum Cooling System - Engine Only | 27 gal (US) 103 l |
| Length | 84.1 in 2136 mm |
| Width | 67 in 1702 mm |
| Height | 79.7 in 2024 mm |
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