Cat® C1.1 Diesel Engine

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. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. 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.

Get a Quote
Maximum Power 28.2 HP
Maximum Torque 49.4 lb-ft @ 2400 rpm
Rated Speed 2200-3400 rpm
Minimum Power 19.7 HP
Emissions U.S. EPA Tier 4 Interim Equivalent. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards.
Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Bore 3 in
Stroke 3.2 in
Displacement 69 in³
Compression Ratio 23.0:1
Aspiration Naturally Aspirated (NA)
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Aftertreatment -
Length 19.3 in
Width 15.7 in
Height 22.7 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 191 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