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Industrial Diesel Engines - 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® C2.2 Diesel Engine

The Cat® C2.2 Industrial Diesel Engine is offered in ratings ranging from 31-49.3 bkW (41.6-66.1 bhp) @ 2200-3000 rpm. These ratings meet EU Stage IIIA (U.S. EPA Tier 4 Interim equivalent) emission standards. Industries and applications powered by C2.2 engines include: Agriculture, Aerial Lifts, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Compressors, Construction, General Industrial, Irrigation Equipment, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Light Towers, Mobile Sweepers, Paving Equipment, Pumps, Trenchers, Turf and Landscaping, Underground Mining Equipment and Welders.

Product Details

Power Rating

Minimum Power 31 bkW
Maximum Power 49.3 bkW
Rated Speed 2200-3000 rpm

Emission Standards

Emissions U.S. EPA Tier 4 Interim Equivalent


Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
Bore 84 mm (3.3 in)
Stroke 100 mm (3.9 in)
Aspiration Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Displacement 2.216 L (135 in³)
Compression Ratio 23.3:1
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Lube System - Refill 10.6 L (11.2 qt)

Engine Dimensions - Approximate

Height 725 mm (28.5 in)
Length 660-664 mm (26-26.14in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 184-194 kg (406-427.7 lb)
Width 459-531 mm (18.1-21 in)
  • Air Inlet System
    •  Inlet manifold with choice of inlets.
  • Inlet manifold with choice of inlets.
    • Control System
      •  Alternator 12 volt 65 amp
      •  Tier 4 Final: Alternator 12V 85 amp
      •  Starter motor 12 volt
      •  Glow plug starting aid
    • Alternator 12 volt 65 amp
      • Tier 4 Final: Alternator 12V 85 amp
        • Starter motor 12 volt
          • Glow plug starting aid
            • Cooling System
              •  Belt-driven coolant pump
              •  Coolant temperature switch
              •  Choice of cooling fans
            • Belt-driven coolant pump
              • Coolant temperature switch
                • Choice of cooling fans
                  • Flywheels and Flywheel Housing
                    •  SAE No. 7 1/2, SAE No. 8 or SAE No. 10 flywheel
                    •  Choice of SAE No. 4 or standard backplate flywheel housing
                  • SAE No. 7 1/2, SAE No. 8 or SAE No. 10 flywheel
                    • Choice of SAE No. 4 or standard backplate flywheel housing
                      • Fuel System
                        •  Fuel injection pump
                        •  Spin-on fuel filter
                        •  Electronic Shut-off Solenoid (ESOS)
                      • Lube System
                        •  Alternative oil fillers
                        •  Spin-on lube oil filter
                        •  Lube oil pressure switch
                        •  Lube oil sump
                      • Alternative oil fillers
                        • Spin-on lube oil filter
                          • Lube oil pressure switch
                            • Lube oil sump
                              • 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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