Cat engines have been the driving force behind the majority of the world's drilling rigs for years. Cat mechanical drilling engines feature proven reliability and durability, the right power for each application, easy servicing, and low owning and operating costs. Cat land mechanical drilling engines offer a wide range of power for direct-drive equipment from mud pumps to power for the entire drilling operation.
| C15 ACERT™ | 440 BHP | 595 BHP | EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA |
| C15 ACERT™ | 475 BHP | 580 BHP | U.S. EPA Tier 4 Interim, EU Stage IIIB |
| C18 ACERT™ | 575 BHP | 800 BHP | EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA |
| C18 ACERT™ | 755 BHP | 800 BHP | U.S. EPA Non-road Tier 4 Final |
| C18 ACERT™ | 600 BHP | 755 BHP | U.S. EPA Tier 4 Interim, EU Stage IIIB |
| C27 ACERT™ | 800 BHP | 1150 BHP | U.S. EPA Non-road Tier 2 |
| C27 ACERT™ | 800 BHP | 950 BHP | U.S. EPA Non-road Tier 4 Final |
| C32 ACERT™ | 800 BHP | 1500 BHP | U.S. EPA Non-road Tier 2 |
| C32 ACERT™ | 1125 BHP | 1125 BHP | U.S. EPA Non-road Tier 4 Final |
| 3508 | 680 BHP | 1135 BHP | Non-certified |
| 3508B | 760 BHP | 900 BHP | Non-certified |
| 3508C | 900 BHP | 900 BHP | U.S. EPA Non-road Tier 2 |
| 3512 | 1020 BHP | 1800 BHP | Non-certified |
| 3512C | 1250 BHP | 1475 BHP | U.S. EPA Non-road Tier 2 |
| 3516 | 1649 BHP | 1649 BHP | Non-certified |
| MODEL | Minimum Rating | Maximum Rating | Emissions |
| C15 ACERT™ | 328 bkW | 444 bkW | EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA |
| C15 ACERT™ | 354 bkW | 433 bkW | U.S. EPA Tier 4 Interim, EU Stage IIIB |
| C18 ACERT™ | 429 bkW | 597 bkW | EPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA |
| C18 ACERT™ | 563 bkW | 597 bkW | U.S. EPA Non-road Tier 4 Final |
| C18 ACERT™ | 447 bkW | 563 bkW | U.S. EPA Tier 4 Interim, EU Stage IIIB |
| C27 ACERT™ | 597 bkW | 858 bkW | U.S. EPA Non-road Tier 2 |
| C27 ACERT™ | 597 bkW | 708 bkW | U.S. EPA Non-road Tier 4 Final |
| C32 ACERT™ | 597 bkW | 1119 bkW | U.S. EPA Non-road Tier 2 |
| C32 ACERT™ | 839 bkW | 839 bkW | U.S. EPA Non-road Tier 4 Final |
| 3508 | 507 bkW | 846 bkW | Non-certified |
| 3508B | 567 bkW | 671 bkW | Non-certified |
| 3508C | 671 bkW | 671 bkW | U.S. EPA Non-road Tier 2 |
| 3512 | 761 bkW | 1342 bkW | Non-certified |
| 3512C | 932 bkW | 1100 bkW | U.S. EPA Non-road Tier 2 |
| 3516 | 1230 bkW | 1230 bkW | Non-certified |
| MODEL | Minimum Rating | Maximum Rating | Emissions |
440 BHP
Maximum Rating595 BHP
EmissionsEPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
475 BHP
Maximum Rating580 BHP
EmissionsU.S. EPA Tier 4 Interim, EU Stage IIIB
575 BHP
Maximum Rating800 BHP
EmissionsEPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
600 BHP
Maximum Rating755 BHP
EmissionsU.S. EPA Tier 4 Interim, EU Stage IIIB
328 bkW
Maximum Rating444 bkW
EmissionsEPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
354 bkW
Maximum Rating433 bkW
EmissionsU.S. EPA Tier 4 Interim, EU Stage IIIB
429 bkW
Maximum Rating597 bkW
EmissionsEPA and CARB Non-Road Mobile Tier 3, EU Stage IIIA
447 bkW
Maximum Rating563 bkW
EmissionsU.S. EPA Tier 4 Interim, EU Stage IIIB