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Overview

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. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards.

Power Rating

Units:
Minimum Power 19.1 bhp 14.1 bkW Less
Maximum Power 28.2 bhp 21.0 bkW Less
Rated Speed 2200-3400 rpm 2200-3400 rpm Less

Emission Standards

Emissions U.S. EPA Tier 4 Interim Equivalent. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. U.S. EPA Tier 4 Interim Equivalent. Nonroad engines less than 19 kW (25 hp) are not currently subject to EU emission standards. Less

General

Engine Configuration Inline 3, 4-Stroke-Cycle Diesel Inline 3, 4-Stroke-Cycle Diesel Less
Bore 77 mm (3.03 in) 77 mm (3.03 in) Less
Stroke 81 mm (3.19 in) 81 mm (3.19 in) Less
Displacement 1.13 L (69 in³) 1.13 L (69 in³) Less
Aspiration Naturally Aspirated (NA) Naturally Aspirated (NA) Less
Compression Ratio 23:1 23:1 Less
Combustion System Indirect Injection Indirect Injection Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Lube System (refill) 3.4-4.4 L (3.6-4.6 qt) 3.4-4.4 L (3.6-4.6 qt) Less

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Length 491 mm (19.33 in) 491 mm (19.33 in) Less
Width 400 mm (15.7 in) 400 mm (15.7 in) Less
Height 576 mm (22.7 in) 576 mm (22.7 in) Less
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 87 kg (191 lb) 87 kg (191 lb) Less

Emissions

Meets U.S. EPA Tier 4 Interim equivalent emission standards. Available using U.S. EPA Flexibility, and for other regulated and non-regulated areas.

Reliable, Quiet and Durable Power

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

High Performance

Delivers impressive performance throughout a wide speed range while maintaining low operating costs.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Broad Application Range

Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Package Size

Ultra-compact package size ensures ease of installation as well as exceptional power density.

Quality

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • 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

C1.1 Standard Equipment

Air Inlet System
  • Inlet manifold with choice of inlets.

Control System
  • Alternator 12 volt 40 amp
  • Starter motor 12 volt
  • Glow plug starting aid

Cooling System
  • Belt-driven coolant pump
  • Coolant temperature switch

Flywheel and Flywheel Housing
  • SAE No. 6 1/2 flywheel
  • Choice of SAE No. 5 or standard backplate flywheel housing

Fuel System
  • Fuel injection pump
  • Spin-on fuel filter
  • Electronic Shut-off Solenoid (ESOS)

Lube System
  • Low profile oil pan
  • Spin-on lube oil filter
  • Lube oil pressure switch

General
  • Cast iron, engine block
  • Cast iron exhaust manifold--side outlet
  • Paint: Caterpillar yellow, with optional colors available at request

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