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.
Maximum Power 40.2 HP
Maximum Torque 83 lb-ft @ 1800 rpm
Emissions U.S. EPA Tier 4 Interim Equivalent
Rated Speed 2200-3000 rpm
Maximum Power 40.2HP
Maximum Torque 83lb-ft @ 1800 rpm
Minimum Power 27.8HP
Rated Speed 2200-3000 rpm
Emissions U.S. EPA Tier 4 Interim Equivalent
Height 25.3in
Length 22.5in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 345lb
Width 20.3in
Aftertreatment -
Aspiration Naturally Aspirated (NA) or Turbocharged (T)
Bore 3.3in
Combustion System Indirect Injection
Compression Ratio 22.5:1
Displacement 91in³
Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Rotation from Flywheel End Counterclockwise
Stroke 3.5in
Inlet manifold with choice of inlets.
Alternator 12 volt 65 amp
Starter motor 12 volt
Glow plug starting aid
Belt-driven coolant pump
Coolant temperature switch
Choice of cooling fans
Naturally Aspirated: SAE No. 7 1/2 flywheel
Turbocharged: SAE No. 6 1/2 or 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
Fuel injection pump
Spin-on fuel filter
Electronic Shut-off Solenoid (ESOS)
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
