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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.

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Product Specs

Power Rating

Maximum Power 40.2 HP
Maximum Torque 83 lb-ft @ 1800 rpm
Rated Speed 2200-3000 rpm
Minimum Power 27.8 HP

Emission Standards

Emissions U.S. EPA Tier 4 Interim Equivalent


Engine Configuration Inline 3, 4-Stroke-Cycle Diesel
Bore 3.3 in
Stroke 3.5 in
Displacement 91 in³
Compression Ratio 22.5:1
Aspiration Naturally Aspirated (NA) or Turbocharged (T)
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Aftertreatment -

Engine Dimensions - Approximate

Length 22.5 in
Width 20.3 in
Height 25.3 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 345 lb