Industrial Diesel Engines - Lesser Regulated & Non-Regulated
Industrial Diesel Engines - Highly Regulated

Cat® C4.4 Diesel Engine

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C4.4 Diesel Engines - Lesser Regulated & Non-Regulated
US
Metric

Overview

The Cat® C4.4 Industrial Diesel Engine is offered in ratings ranging from 61.5-106 bkW (74.5-100 bhp) @ 2200 rpm. These ratings meet EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Industries and applications powered by C4.4 engines include: Agriculture, Aerial Lifts, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Feller Bunchers, Forestry, Forklifts, General Industrial, Harvesters, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Sweepers, Paving Equipment, Pumps, Skidders, Specialty Ag Equipment, Sprayers, Trenchers, Turf and Landscaping and Underground Mining Equipment.

Power Rating

Minimum Power
82.50 bhp
61.50 bkW
Maximum Power
142.00 bhp
106.00 bkW
Rated Speed
2200 rpm

Emission Standards

Emissions
China Nonroad III, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent

General

Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.13 in)
Stroke
127 mm (5.0 in)
Displacement
4.4 L (269 in³)
Aspiration
Turbocharged (T) or Turbocharged Aftercooled (TA)
Compression Ratio
16.2:1
Combustion System
Direct Injection
Rotation (from flywheel end)
Counterclockwise
Lube System (refill)
11 L (11.6 qt)

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

Length
631 mm (24.8 in)
Width
626 mm (24.65 in)
Height
823.5 mm (32.4 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments)
360 kg (793.7 lb)

Power Rating

Minimum Power
91.20 HP
68.00 kW
Maximum Power
142.00 HP
106.00 kW
Rated Speed
2200 rpm

Emission Standards

Emissions
China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA

General

Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.13 in)
Stroke
127 mm (5.0 in)
Aspiration
Turbocharged (T) or Turbocharged Aftercooled (TA)
Displacement
4.4 L (269 in³)
Compression Ratio
16.9:1
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise
Lube System - Refill
11 L (11.6 qt)

Engine Dimensions - Approximate

Height
823.5 mm (32.4 in)
Length
631 mm (24.8 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
360 kg (793.7 lb)
Width
626 mm (24.65 in)

General

Bore
4.10 in
105.00 mm
Stroke
5.00 in
127.00 mm
Displacement
269.00 in³
4.40 l

Engine Dimensions - Approximate

Height
37.70 in
958.00 mm
Length
24.80 in
631.00 mm
Width
24.60 in
626.00 mm

Power Rating

Maximum Torque
411.20 lb-ft @ 1400 rpm
558.00 Nm @ 1400 rpm

Engine Dimensions - Approximate

Weight - Net Dry - Basic Operating Engine Without Optional Attachments
794.00 lb
360.00 kg

General

Aftertreatment
-
Features

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.

Fuel Efficiency

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

Fuel & Oil

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

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

Ideal for equipment with narrow engine compartments. Multiple installation options minimize total package size.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including SOSSM 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
Standard Equipment
  • Air Inlet System
    • Inlet manifold with choice of inlets.
  • Control System
    • Alternator
    • Starter motor
    • Glow plug starting aid
  • Flywheels and Flywheel Housing
    • SAE No. 3 flywheel housing
    • Flywheel and starter rings
  • Fuel System
    • Fuel filter positions
  • Lube System
    • Lubricating oil filters and breathers
    • Oil filter positions
    • Lube oil sump
  • Power Take Off
    • SAE B Power Take Off (PTO)
  • General
    • Paint: Caterpillar yellow, with optional colors available at request
    • Timing case and gear-driven auxiliaries
    • Belt-driven auxiliaries
    • Engine mountings
    • Gauges
    • Displays
    • Power and torque curve tailoring