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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® C1.1 Diesel Engine

The C1.1 Industrial Diesel Engine is offered in ratings ranging from 13.7-21.0 bkW (18.4-28.2 bhp) @ 2200-3000 rpm. These ratings meet EPA Tier 4 Final emission standards. They are also available for Europe and, depending on applicable emission standards, may be introduced in other regulated and non-regulated areas. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. Industries and applications powered by C1.1 engines include: Aircraft Ground Support, Auxiliary Power Units, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Construction, Forestry, General Industrial, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Light Towers, Pumps, Trenchers and Underground Mining Equipment.

  • Specification Summary

  • Maximum Power 21 kW
  • Maximum Torque 67 Nm @ 2400 rpm
  • Rated Speed 2200-3400 rpm
  • Minimum Power 14.7 kW
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Product Details

Power Rating

Maximum Power 21 kW
Maximum Torque 67 Nm @ 2400 rpm
Rated Speed 2200-3400 rpm
Minimum Power 14.7 kW

Emission Standards

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

General

Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Bore 77 mm
Stroke 81 mm
Displacement 1.13 l
Compression Ratio 23.0:1
Aspiration Naturally Aspirated (NA)
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Aftertreatment -

Engine Dimensions - Approximate

Length 491 mm
Width 400 mm
Height 576 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 87 kg
  • Air Inlet System
    •  Inlet manifold with choice of inlets.
  • Control System
    •  Alternator 12 volt 40 amp
    •  Starter motor 12 volt
    •  Glow plug starting aid
  • Cooling System
    •  Belt-driven coolant pump
    •  Coolant temperature switch
  • Flywheel and Flywheel Housing
    •  SAE No. 6 1/2 flywheel
    •  Choice of SAE No. 5 or standard backplate flywheel housing
  • Fuel System
    •  Fuel injection pump
    •  Spin-on fuel filter
    •  Electronic Shut-off Solenoid (ESOS)
  • Lube System
    •  Low profile oil pan
    •  Spin-on lube oil filter
    •  Lube oil pressure switch
  • Low profile oil pan
    • Spin-on lube oil filter
      • Lube oil pressure switch
        • General
          •  Cast iron, engine block
          •  Cast iron exhaust manifold--side outlet
          •  Paint: Caterpillar yellow, with optional colors available at request

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