US
Metric

Overview

The Cat® C4.4 Industrial Power Unit is offered in ratings ranging from 61-81 bkW (81.8-108.6 bhp) @ 2200 rpm. These ratings meet U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Conveniently pre-configured for a wide range of applications, the Cat® Industrial Power Unit is a complete power package containing a radiator, flywheel, alternator and alternator wiring completely pre-assembled for fast, straightforward installation in a number of OEM, customer and packager applications. These fuel efficient units are ready made for irrigation, industrial, mining and other pump applications.

Power Rating

Minimum Rating
81.80 bhp
61.00 bkW
Maximum Rating
108.60 bhp
81.00 bkW
Rated Speed
2200 rpm

Emission Standards

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

General

Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.1 in)
Stroke
127 mm (5.0 in)
Displacement
4.4 L (268.5 in³)
Aspiration
Turbocharged (T)
Compression Ratio
18.2:1
Combustion System
Direct Injection
Rotation (from flywheel end)
Counterclockwise

Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)

Length
1260 mm (49.6 in)
Width
734 mm (28.9 in)
Height
964 mm (38 in)

Power Unit Dimensions - Approximate

Weight - Net Dry - Standard Configuration Without Oil, Cooling, Clutch, Compressor, A/C
465 kg (1025 lb)

Power Rating

Minimum Rating
81.80 BHP
61.00 bkW
Maximum Rating
108.60 BHP
81.00 bkW
Rated Speed
2200 rpm

Emission Standards

Emissions
UN ECE R96 Stage IIIA

General

Engine Configuration
Inline 4, 4-Stroke-Cycle Diesel
Bore
105 mm (4.1 in)
Stroke
127 mm (5.0 in)
Displacement
4.4 L (268.5 in³)
Aspiration
Turbocharged (T)
Compression Ratio
18.2:1
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise

Power Unit Dimensions - Approximate

Height
964 mm (38 in)
Length
1260 mm (49.6 in)
Width
734 mm (28.9 in)

Power Rating

Maximum Power
108.60 HP
81.00 kW
Minimum Power
81.80 HP
61.00 kW

General

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

Power Unit Dimensions

Weight
1025.00 lb
465.00 kg
Width
28.90 in
734.00 mm
Height
38.00 in
964.00 mm
Length
49.60 in
1260.00 mm

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.

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
    • Mounted air filter and turbocharger
  • Control System
    • Available in 12 volt or 24 volt systems
    • Starter motor 12V or 24V
  • Cooling System
    • Fan (pusher or puller)
    • Fan drive
    • Radiator
    • Water pump
  • Flywheels and Flywheel Housing
    • Flywheel
    • SAE No. 3 flywheel housing
  • Fuel System
    • Fuel filter
  • Lube System
    • Oil cooler
    • Lube oil filter
    • Timing case oil filler
  • Mountings
    • Engine mounting brackets
  • Power Take Off (PTO)
    • SAE A or SAE B front PTO (142/280 NM)
  • General
    • Paint: Caterpillar yellow, with optional colors available at request