C1.1

Cat® C1.1 Diesel Engine

C1.1 LRC Diesel Engines - Lesser Regulated & Non-Regulated
Maximum Power
28.2 hp
Maximum Torque
49.4 lb-ft @ 2400 rpm
Rated Speed
3400 rpm
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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THE RUNDOWN

Reliable, Quiet and Durable Power
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
High Performance
Delivers impressive performance throughout a wide speed range while maintaining low operating costs.
Fuel Efficiency
Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
Broad Application Range
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
Package Size
Ultra-compact package size ensures ease of installation as well as exceptional power density.
Quality
Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.
World-class Product Support Offered Through Global Cat Dealer Network
  • 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
World-class Product Support Offered Through Global Cat Dealer Network
  • 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
Power Rating
Maximum Power28.2hp
Maximum Torque49.4lb-ft @ 2400 rpm
Rated Speed3400 rpm
Minimum Power19.7hp
Emission Standards
EmissionsUN ECE R96 Stage IIIA
General
Engine ConfigurationInline 3, 4-Stroke-Cycle Diesel
Bore3in
Stroke3.2in
Displacement69in³
Compression Ratio23.0:1
AspirationNaturally Aspirated (NA)
Combustion SystemIndirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length19.3in
Width15.7in
Height22.7in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments211lb
Standard Equipment

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