The Cat® C1.1 Industrial Diesel Engine is offered in ratings ranging from 14.4-18.4 bkW (19.3-24.7 bhp) @ 1800-2800 rpm. These ratings meet U.S. EPA Tier 4 Final emission standards. Ratings: 13.7-21.0 bkW (18.4-28.2 bhp) @ 2200-3000 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 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, Underground Mining Equipment.


Minimum Power 14.4 bkW
Maximum Power 21 bkW
Rated Speed 2200-3400 rpm
Emissions 14.7-18.4 bkW (19.7-24.7 bhp) meet U.S. EPA Tier 4 Final. Other ratings available for Europe and other regions.
Engine Configuration In-Line 3, 4-Stroke-Cycle Diesel
Bore 77 mm (3.03 in)
Stroke 81 mm (3.19 in)
Displacement 1.13 L (69 in³)
Aspiration Naturally Aspirated (NA)
Compression Ratio 23:1
Combustion System Indirect Injection
Rotation from Flywheel End Counterclockwise
Cooling System – Capacity 1.9 L (2 qt)
Lube System – Refill 3.4-4.4 L (3.6-4.6 qt)
Height 576 mm (22.7 in)
Length 491 mm (19.33 in)
Weight – Net Dry – Basic Operating Engine Without Optional Attachments 87 kg (191 lb)
Width 400 mm (15.74 in)


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