New | Cat® C1.5 Diesel Engine

The Cat® C1.5 Industrial Diesel Engine is offered in ratings ranging from 20.9-30 bkW (28-40.2 bhp) @ 2200-3000 rpm. These ratings meet EU Stage IIIA emission standards. Applications powered by C1.5 engines include: Agriculture Tractors, Combines and Harvesters, Aircraft Ground Support, Bore/Drill Rigs, Chippers, Grinders, Compactors, Rollers, Compressors, Construction, Irrigation, Pumps, Turf, Landscaping, Mobile Earthmoving, Paving, Trenchers, Underground Mining, and Material Handling.

Power Rating
Minimum Power28.0 bhp
Maximum Power40.2 bhp
Rated Speed2200-3000 rpm
Emission Standards
EmissionsU.S. EPA Tier 4 Interim Equivalent
Engine ConfigurationInline 3, 4-Stroke-Cycle Diesel
Bore84 mm (3.3 in)
Stroke90 mm (3.5 in)
Displacement1.496 L (91 in³)
AspirationNaturally Aspirated (NA) or Turbocharged (T)
Compression Ratio22.5:1
Combustion SystemIndirect Injection
Rotation (from flywheel end)Counterclockwise
Lube System (refill)6 L (6.3 qt)
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Length572 mm (22.5 in)
Width453-512 mm (17.8-20.2 in)
Height643 mm (25.3 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments)149-156.5 kg (328-345 lb)

Meets U.s. Epa Tier 4 Interim Equivalent Emission Standards. Available Using U.s. Epa Flexibility, And For Other Regulated And Non-regulated Areas.

World-class Manufacturing Capability And Processes Coupled With Proven Core Engine Designs Assure Reliability, Quiet Operation, And Many Hours Of Productive Life.

Substantial Torque Rise Delivers Impressive Performance Throughout A Wide Speed Range While Maintaining Low Operating Costs.

Fuel Consumption Optimized To Match Operating Cycles Of A Wide Range Of Equipment And Applications While Maintaining Low Operating Costs.

Industry Leading Range Of Factory Configurable Ratings And Options For Agricultural, Material Handling, Construction, Mining, Aircraft Ground Support, And Other Industrial Applications.

Ultra-compact Package Size Ensures Ease Of Installation As Well As Exceptional Power Density.

Every Cat Engine Is Manufactured To Stringent Quality Standards In Order To Assure Customer Satisfaction.

  • scheduled Maintenance, Including S•o•ssm 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

Air Inlet System
  • Inlet manifold with choice of inlets.
Control System
  • Alternator 12 volt 65 amp
  • Starter motor 12 volt
  • Glow plug starting aid
  • Tier 4 Final: Alternator 12V 85 amp
Cooling System
  • Belt-driven coolant pump
  • Coolant temperature switch
  • Choice of cooling fans
Flywheel & Flywheel Housing
  • Naturally Aspirated: SAE No. 7 1/2 flywheel
  • Turbocharged: SAE No. 6 1/2 or SAE No. 7 1/2 flywheel
  • EPA Tier 4 Final Turbocharged: SAE No. 7 1/2 flywheel
  • Naturally Aspirated: Choice of SAE No. 4 or standard backplate flywheel housing
  • Turbocharged: Choice of SAE No. 4 or SAE No. 5 or standard backplate flywheel housing
  • Tier 4 Final Turbocharged: Choice of SAE No. 4 or SAE No. 5 or standard backplate flywheel housing
Fuel System
  • Fuel injection pump
  • Spin-on fuel filter
  • Electronic Shut-off Solenoid (ESOS)
Lube System
  • Alternative oil fillers
  • Spin-on lube oil filter
  • Lube oil pressure switch
  • Lube oil sump
  • 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



Other Models in this Category

Hawthorne Power Systems Logo

Why Cat is Better. Machine Comparison

With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
Mark Cripe
Helix Electric

San Diego - Power
Steve Jamison
Power Systems Sales Manager
858.376.6821 office
858.688.0083 mobile

Phillip J. Smith (PJ)
Service Manager - CSA Group/Truck Shop
858.376.6874 office
858.688.0134 mobile

Dan Hixon
Field Service Manager
858.376.6822 office
858.663.4652 mobile

Paul Karpf
Rental Department Manager
858.376.6888 office
858.688.0039 mobile

Tom Bonham
Product Support Sales &
Advanced Electrical Services Manager
858.376.6898 office
442.248.2108 mobile

Hawaii – Power
Cliff Yuen
Power Systems Sales Manager
808.676.0322 office
808.349.7767 mobile

Travis Tilton
General Service Manager
808.676.0314 office
808.864.1903 mobile

Bobby Fields
Rental Developer
808.676.0267 office
808.368.5445 mobile

Guam – Power
Myver Hecita
Power Systems Rental &
Sales Representative
671.649.4241 office
671.898.2740 mobile

Jimmy Cruz
Engine Service Manager
671.649.4216 office
671.488.2821 mobile