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C4.4 Tier 4 Diesel Engines - Highly Regulated

Cat® C4.4 Diesel Engine

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Overview

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 systems and advanced control systems to deliver maximum uptime in the harshest environment. They have proven they can handle the toughest applications and deliver superior performance that exceeds the expectations of the most demanding users. 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.

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 mo...

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 enabl...

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 SOS^SM 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. Serv...

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.

General

Engine Configuration: Inline 4, 4-Stroke-Cycle Diesel
Cooling System Capacity: 10.8 L (11.4 qt)
Lube System (refill): 5.2-13.5 L (5.5-14.27 qt)
Bore: 4.1in
Stroke: 5in
Displacement: 268.5in³
Aspiration: Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Compression Ratio: 16.5:1
Combustion System: Direct Injection
Rotation from Flywheel End: Counterclockwise
Engine Configuration: Inline 4
Bore: 105 mm (4.13 in)
Stroke: 127 mm (5.00 in)
Displacement: 4.4 L (268.5 in³)
Cooling System - Capacity: 10.8 L (11.4 qt)
Lube System - Refill: 5.2-13.5 L (5.5-14.27 qt)
Aftertreatment: DOC+SCR or DOC+DPF+SCR

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

Length: 845.1 mm (33.3 in)
Width: 741.6-772.4 mm (29.1-30.4 in)
Height: 848.2-867.6 mm (33.4-34.1 in)
Weight - Net Dry (Basic Operating Engine Without Optional Attachments): 400-420 kg (881.8-926 lb)

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

Length: 647-828 mm (25.5-32.6 in)
Width: 365-695 mm (14.3-27.4 in)
Height: 279-430 mm (11-16.9 in)
Weight: 34-80 kg (75-17;6.4 lb)
Diameter: 224.9-270.3 mm (9.6-10.6 in)

Power Rating

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

Emission Standards

Emissions: U.S. EPA & CARB Tier 4 Final

Engine Dimensions - Approximate

Height: 848.2-867.6 mm (33.4-34.1 in)
Length: 845.1 mm (33.3 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments: 400-420 kg (881.8-926 lb)
Width: 741.6-772.4 mm (29.1-30.4 in)
Height: 34.1in
Width: 29.1in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments: 926lb
Length: 33.3in

Aftertreatment Dimensions - Approximate

Diameter: 224.9-270.3 mm (9.6-10.6 in)
Height: 279-430 mm (11-16.9 in)
Length: 647-828 mm (25.5-32.6 in)
Weight: 34-80 kg (75-17;6.4 lb)
Width: 365-695 mm (14.3-27.4 in)

Aftertreatment Dimensions

Length: 26.5in
Width: 18.8in
Height: 15.3in
Weight: 99lb

Aftertreatment Dimensions*

Diameter: 10.6in

Standard/Optional Features

Standard Equipment:

Air Inlet System
- Standard air cleaners
Control System
- Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
- Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines
Cooling System
- Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
- 50:50 water glycol mix
Flywheels And Flywheel Housing
- Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations
Fuel System
- Electronic high pressure common rail
- Innovative filter design to ensure maximum protection of the engine
Lube System
- Wide choice of sumps for different applications
Power Take Off
- SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.
General
- Available with or without a balancer
- Paint: Caterpillar yellow, with optional colors available at request
U.s. Epa Tier 4 Interim Equivalent, Eu Stage Iiib Equivalent Aftertreatment / Clean Emissions Control Equipment
- Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
- No ash service requirement
- Passive regeneration
U.s. Epa Tier 4 Final, Eu Stage Iv Aftertreatment/ Clean Emissions Control Equipment
- Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
- Selective Catalytic Reduction (SCR)
- 3" flex pipe connection with straight, 45°, and 90° options for flexibility

Optional Equipment:

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