Cat?� C1.1 Diesel Engine

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The C1.1 Industrial Diesel Engine is offered in ratings ranging from 13.7-21.0 bkW (18.4-28.2 bhp) @ 2200-3000 rpm. These ratings meet EPA Tier 4 Final emission standards. They are also available for Europe and, depending on applicable emission standards, may be introduced in other regulated and non-regulated areas. 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.

Pricing: Contact for Pricing

Maximum Power 28.2hp
Maximum Torque 49.4lb-ft @ 2400 rpm
Minimum Power 19.7hp
Rated Speed 2200-3400 rpm
Emissions U.S. EPA Tier 4 Interim Equivalent
Height 22.7in
Length 19.3in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 191lb
Width 15.7in
Aftertreatment -
Aspiration Naturally Aspirated (NA)
Bore 3in
Combustion System Indirect Injection
Compression Ratio 23.0:1
Displacement 69in³
Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Rotation from Flywheel End Counterclockwise
Stroke 3.2in

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

Optional Equipment:

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