Cat® C1.1 Diesel Engine

Cat® C1.1 Industrial Diesel Engines deliver impressive performance throughout a wide speed range with exceptional power density. Their ultra-compact package size and extensive choice of options ensures these engines are ideal for a wide range of small, off road applications. Single-side servicing improves ease of maintenance and lowers overall owner operating costs. 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 and Underground Mining Equipment. C1.1 engines, with ratings: 13.7-21 bkW (18.4-28 bhp) @ 2200-3400 rpm, meet EPA Tier 4 Interim equivalent emission standards. They are available using U.S. EPA Flexibility and for Europe and, depending on applicable emission standards, may be introduced in other regulated and non-regulated areas.

Units: US Metric
Power Rating
Maximum Power
28.2 HP
21 kW
Maximum Torque
49.4 lb-ft @ 2400 rpm
67 Nm @ 2400 rpm
Rated Speed
2200-3400 rpm
Minimum Power
19.7 HP
14.7 kW
Emission Standards
U.S. EPA Tier 4 Interim Equivalent
Engine Configuration
Inline 3, 4-Stroke-Cycle Diesel
3 in
77 mm
3.2 in
81 mm
69 in³
1.13 l
Compression Ratio
Naturally Aspirated (NA)
Combustion System
Indirect Injection
Rotation from Flywheel End
Engine Dimensions - Approximate
19.3 in
491 mm
15.7 in
400 mm
22.7 in
576 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
191 lb
87 kg
Standard Equipment
Air Inlet System
Control System
Cooling System
Flywheel and Flywheel Housing
Fuel System
Lube System
Payment Calculator

Payments calculated using this tool are estimates only and do not include applicable taxes, insurance, and other fees. Actual prices, interest rate, and payments may be different. Financing payment calculations are based on APR and term. Actual payment and terms are subject to approved credit with Cat Financial Services Corporation or other funding sources. Not all customers will qualify.