Cat® C4.4 Diesel Engine

Cat® C4.4 Diesel Engine

360° Exterior View

Cat® C4.4 Industrial Diesel Engines offer the perfect balance of durability, fuel efficiency and low emissions. Extensively tested on the job, these engines use a range of common rail fuel ...
Print SHARE

Power Rating

Maximum Power
173.5HP
Maximum Torque
553lb-ft @ 1400 rpm
Rated Speed
2200 rpm
Minimum Power
93.9HP

Emission Standards

Emissions
U.S. EPA & CARB Tier 4 Final

General

Engine Configuration
Inline 4
Bore
4.1in
Stroke
5in
Displacement
268.5in³
Compression Ratio
16.5:1
Aspiration
Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise
Aftertreatment
DOC+SCR or DOC+DPF+SCR

Engine Dimensions - Approximate

Length
33.3in
Width
29.1in
Height
34.1in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
926lb

Aftertreatment Dimensions

Length
26.5in
Width
18.8in
Height
15.3in
Diameter
10.6in
Weight
99lb

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

Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.

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.

Low Cost Maintenance

Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, "no ash service" aftertreatment, and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.

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 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

Tier 4 Interim, Stage IIIB Aftertreatment Features

Regeneration. Passive regeneration completely transparent to the operator.


Mounting. Extensive range of inlets and outlets, as well as remote off- and on-engine installations, provide flexibility for many installations.


Service. Service-free DPF for the emissions life of the engine.


Tier 4 Final, Stage IV Aftertreatment Features

Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.


Mounting. Extensive range of inlets and outlets, as well as remote and on-engine installations, provide flexibility for many installations.


Service. Both DOC/SCR an DOC/DPF/SCR systems are service-free for the emissions life of the engine.


Available in 12V or 24V systems


Standard Equipment: