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Cat® C1.1 Industrial Power Unit
Cat® C1.1 Industrial Power Unit
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C1.1 Industrial Power Units, with the rating: 17.9 bkW (24 bhp) @ 3000 rpm, meet EPA Tier 4 Interim equivalent emission standards. They are available for U.S. EPA Flexibility and for Europe and, depending on applicable emission standards, may be introduced in other regulated jurisdictions. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. Conveniently pre-configured for a wide range of applications, the Cat® Industrial Power Unit is a complete power package containing a radiator, flywheel, alternator and alternator wiring completely pre-assembled for fast, straightforward installation in a number of OEM, customer and packager applications. These fuel efficient units are ready made for irrigation, industrial, mining and other pump applications.

Standard Equipment


77 mm (3.03 in)
81 mm (3.19 in)
1.131 L (69 in³)
Compression Ratio
Rotation from Flywheel End
Cooling System - Capacity
5.21 L (5.5 qt)
Lube System - Refill
4.9 L (5.2 qt)
Naturally Aspirated (NA)
Engine Configuration
Inline 3, 4-Stroke-Cycle Diesel

Power Rating

Minimum Rating
24 BHP
Maximum Rating
24 BHP
Rated Speed
3000 rpm

Emission Standards

U.S. EPA Tier 4 Interim Equivalent. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards.

Power Unit Dimensions - Approximate

Weight - Net Dry - Standard Configuration Without Oil, Cooling, Clutch, Compressor, A/C
129 kg (284 lb)
730 mm (28.7 in)
438 mm (17.2 in)
778 mm (30.6 in)
  • Air Inlet System
  • Control System
  • Cooling System
  • Flywheel and Flywheel Housing
  • Fuel System
  • Lube System
  • Power Take Off (PTO)
  • General