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Industrial Diesel Power Units - Lesser Regulated & Non-Regulated

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® C1.5 Industrial Power Unit

The Cat® C1.5 Industrial Power Unit is offered in the following rating: 24.2 bkW (32.5 bhp) @ 3000 rpm. This rating meets U.S. EPA Tier 4 Interim equivalent, EU Stage IIIA equivalent 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.

  • Specification Summary

  • Minimum Rating24.2 bkW
  • Maximum Rating24.2 bkW
  • Frequency3000 rpm
  • EmissionsU.S. EPA Tier 4 Interim Equivalent, EU Stage IIIA Equivalent
  • Engine ConfigurationInline 3, 4-Stroke-Cycle Diesel

Product Details

Power Rating

Minimum Rating 24.2 bkW
Maximum Rating 24.2 bkW
Frequency 3000 rpm

Emission Standards

Emissions U.S. EPA Tier 4 Interim Equivalent, EU Stage IIIA Equivalent


Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Bore 84 mm (3.3 in)
Stroke 90 mm (3.5 in)
Displacement 1.496 L (91 in³)
Aspiration Naturally Aspirated (NA)
Compression Ratio 22.5:1
Rotation (from flywheel end) Counterclockwise
Cooling System Capacity 5.98 L (6.3 qt)
Lube System (refill) 6 L (6.3 qt)

Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)

Length 820 mm (32.3 in)
Width 497 mm (19.6 in)
Height 793 mm (31.2 in)
Weight - Net Dry (Standard configuration without oil, cooling, clutch, compressor, A/C) 175 kg (385.8 lb)
  • Air Inlet System
    •  Inlet manifold
  • Control System
    •  Alternator 12 volt 65 amp
    •  Starter motor 12 volt
    •  Glow plug starting aid
    •  Tier 4 Final: Alternator 12V 85 amp
  • Cooling System
    •  Belt-driven coolant pump
    •  Coolant temperature switch
    •  Mounted air cleaner
    •  Mounted radiator and fan
  • Belt-driven coolant pump
    • Coolant temperature switch
      • Mounted air cleaner
        • Mounted radiator and fan
          • Flywheel & Flywheel Housing
            •  Naturally Aspirated: SAE No. 7 1/2 flywheel
            •  Choice of SAE No. 4, SAE No. 5 or standard backplate flywheel housing
          • Fuel System
            •  Fuel injection pump
            •  Fuel filter
            •  Electronic Shut-off Solenoid (ESOS)
          • Lube System
            •  Spin-on lube oil filter
            •  Lube oil pressure switch
            •  Lube oil sump
          • Power Take Off (PTO)
            •  Provision for timing case rear facing PTO
          • General
            •  Cast iron, engine block
            •  Cast iron exhaust manifold--side outlet
            •  Cold start capability to -20° C (-4° F)
            •  Gradeability 35° continuous
            •  Paint: Caterpillar yellow, with optional colors available at request

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