Cat® C0.5 Diesel Engine

The Cat® C0.5 Industrial Diesel Engine is offered in ratings ranging from 4.1-6.4 kW (5.5-8.6 hp) @ 2000-2800 rpm. These ratings meet U.S. EPA Tier 4 Final emission standards. Ratings: 8.2-10.2 kW (11.0-13.7 hp) @ 2800-3600 rpm are also available for Europe and, depending on applicable emission standards, may be introduced in other regulated areas. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. Industries and applications powered by C0.5 engines include: Auxiliary Power Units, Compactors/Rollers, Mobile Earthmoving Equipment, Mobile Light Towers and Turf and Landscaping.

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Maximum Power 13.7 HP
Maximum Torque 22 lb-ft @ 1600 rpm
Rated Speed 2000-3600 rpm
Minimum Power 11 HP
Emissions U.S. EPA Tier 4 Final
Engine Configuration In-Line 2
Bore 2.6 in
Stroke 2.8 in
Displacement 31 in³
Compression Ratio 23.5:1
Aspiration Naturally Aspirated (NA)
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Length 16 in
Width 14.6 in
Height 20.6 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 126 lb
Air Inlet System
  • Inlet manifold with choice of inlets.
Control System
  • Alternator 12 volt 14 amp
  • Starter motor 12 volt
  • Glow plug starting aid
Cooling System
  • Belt-driven coolant pump
  • Coolant temperature switch
  • Choice of cooling fans
Flywheel and Flywheel Housing
  • U.S. EPA Tier 4 Final: Standard backplate flywheel housing and flatface flywheel
Fuel System
  • Fuel injection pump
  • Spin-on fuel filter
  • Electronic Shut-off Solenoid (ESOS)
Lube System
  • Closed circuit breather
  • Spin-on lube oil filter
  • Lube oil pressure switch
  • Lube oil sump
General
  • Cast iron, engine block
  • Cast iron exhaust manifold--side outlet
  • Cold start capability to -20° C (-4° F)
  • Gradeability 35° continuous
  • Paint: Caterpillar yellow, with optional colors available at request