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Maximum Power66 HP (49.2 kW)
Maximum Torque153 lb-ft @ 1800 rpm (208 Nm @ 1800 rpm)
EmissionsU.S. EPA Tier 4 Interim Equivalent
Rated Speed2200-3000 rpm
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.


Maximum Power66 HP (49.2 kW)
Maximum Torque153 lb-ft @ 1800 rpm (208 Nm @ 1800 rpm)
EmissionsU.S. EPA Tier 4 Interim Equivalent
Rated Speed2200-3000 rpm
Length26 in (662 mm)
Minimum Power41.6 HP (31 kW)
Engine ConfigurationInline 4, 4-Stroke-Cycle Diesel
Bore3.3 in (84 mm)
Stroke3.9 in (100 mm)
Displacement135 in³ (2.216 l)
Compression Ratio23.3:1
AspirationNaturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
Combustion SystemIndirect Injection
Rotation from Flywheel EndCounterclockwise
Width19.3 in (489 mm)
Height27.5 in (698 mm)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments427.7 lb (194 kg)

Benefits and Features

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

Substantial torque rise delivers impressive performance throughout a wide speed range while maintaining low operating costs.

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Ultra-compact package size ensures ease of installation as well as exceptional power density.

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Standard Equipment

  • Inlet manifold with choice of inlets.
  • Alternator 12 volt 65 amp
  • Starter motor 12 volt
  • Glow plug starting aid
  • Belt-driven coolant pump
  • Coolant temperature switch
  • Choice of cooling fans
  • SAE No. 7 1/2, SAE No. 8 or SAE No. 10 flywheel
  • Choice of SAE No. 4 or standard backplate flywheel housing
  • Fuel injection pump
  • Spin-on fuel filter
  • Electronic Shut-off Solenoid (ESOS)
  • Alternative oil fillers
  • Spin-on lube oil filter
  • Lube oil pressure switch
  • Lube oil sump
  • 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