Industrial engines

C1.1

Cat®C1.1 Industrial Diesel Engines deliver impressive performance throughout a wide speed range with exceptional power density. Their ultra-compact package size and extensive choice of options ensures these engines are ideal for a wide range of small, off road applications. Single-side servicing improves ease of maintenance and lowers overall owner operating costs. 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. C1.1 engines, with ratings: 13.7-21 bkW (18.4-28 bhp) @ 2200-3400 rpm, meet UN ECE R96 Stage IIIA emission standards. They are available using U.S. EPA Flexibility and for Europe and, depending on applicable emission standards, may be introduced in other regulated and non-regulated areas.

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Power Rating
Maximum Power28.2 hp
Maximum Torque49.4 lb-ft @ 2400 rpm
Rated Speed3400 rpm
Minimum Power19.7 hp
Emission Standards
EmissionsUN ECE R96 Stage IIIA
General
Engine ConfigurationInline 3, 4-Stroke-Cycle Diesel
Bore3 in
Stroke3.2 in
Displacement69 in³
Compression Ratio23.0:1
AspirationNaturally Aspirated (NA)
Combustion SystemIndirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length19.3 in
Width15.7 in
Height22.7 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments211 lb

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

General

  • Cast iron, engine block
  • Cast iron exhaust manifold--side outlet
  • Paint: Caterpillar yellow, with optional colors available at request

Need installed dimensions with enclosure and tank? See Model Configurations