C1.1

Maximum Power
28.2 HP / 21 kW
Maximum Torque
49.4 lb-ft @ 2400 rpm / 67 Nm @ 2400 rpm
Minimum Power
19.7 HP / 14.7 kW

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 EPA Tier 4 Interim equivalent 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.

Power Rating
Maximum Power 28.2 HP / 21 kW
Maximum Torque 49.4 lb-ft @ 2400 rpm / 67 Nm @ 2400 rpm
Rated Speed 2200-3400 rpm
Minimum Power 19.7 HP / 14.7 kW
Emission Standards
Emissions U.S. EPA Tier 4 Interim Equivalent
General
Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Bore 3 in / 77 mm
Stroke 3.2 in / 81 mm
Displacement 69 in³ / 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 19.3 in / 491 mm
Width 15.7 in / 400 mm
Height 22.7 in / 576 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 191 lb / 87 kg

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
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