Industrial
Cat® C4.4 Diesel Engine
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Maximum Power173.5 hp
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Maximum Torque553 lb-ft @ 1400 rpm
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Rated Speed2200 rpm
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Minimum Power93.9 hp
Power Rating
- Maximum Power
- 173.5 hp
- Maximum Torque
- 553 lb-ft @ 1400 rpm
- Rated Speed
- 2200 rpm
- Minimum Power
- 93.9 hp
Emission Standards
- Emissions
- U.S. EPA & CARB Tier 4 Final
General
- Engine Configuration
- Inline 4, 4-Stroke-Cycle Diesel
- Engine Configuration
- Inline 4
- Bore
- 4.1 in
- Stroke
- 5 in
- Bore
- 105 mm (4.13 in)
- Displacement
- 268.5 in³
- Compression Ratio
- 16.5:1
- Stroke
- 127 mm (5.00 in)
- Aspiration
- Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
- Combustion System
- Direct Injection
- Displacement
- 4.4 L (268.5 in³)
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
- DOC+SCR or DOC+DPF+SCR
- Cooling System Capacity
- 10.8 L (11.4 qt)
- Cooling System
- 10.8 L (11.4 qt)
- Lube System
- 5.2-13.5 L (5.5-14.27 qt)
- Lube System
- 5.2-13.5 L (5.5-14.27 qt)
Engine Dimensions - Approximate
- Length
- 33.3 in
- Width
- 29.1 in
- Height
- 34.1 in
- Weight
- 926 lb
- Height
- 848.2-867.6 mm (33.4-34.1 in)
- Length
- 845.1 mm (33.3 in)
- Weight
- 400-420 kg (881.8-926 lb)
- Width
- 741.6-772.4 mm (29.1-30.4 in)
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
- 400-420 kg (881.8-926 lb)
Aftertreatment Dimensions
- Length
- 26.5 in
- Width
- 18.8 in
- Height
- 15.3 in
- Weight
- 99 lb
Aftertreatment Dimensions*
- Diameter
- 10.6 in
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)
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)
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Air Inlet System
- Standard air cleaners
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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
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Cooling System
- Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
- 50:50 water glycol mix
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Flywheels and Flywheel Housing
- Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations
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Fuel System
- Electronic high pressure common rail
- Innovative filter design to ensure maximum protection of the engine
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Lube System
- Wide choice of sumps for different applications
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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.
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General
- Available with or without a balancer
- Paint: Caterpillar yellow, with optional colors available at request
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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
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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