Power Rating
Maximum Power | 173.5 HP 129.4 kW |
Maximum Torque | 553 lb-ft @ 1400 rpm 750 Nm @ 1400 rpm |
Rated Speed | 2200 rpm 2200 rpm |
Minimum Power | 93.9 HP 70 kW |
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Key Specs
The Cat® C4.4 Industrial Diesel Engine is offered in ratings ranging from 74-129.4 bkW (99-173.5 bhp) @ 2200 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. U.S. EPA Tier 4 Interim equivalent and EU Stage IIIB equivalent ratings are also available using U.S. EPA and EU Flex provisions.
Maximum Power | 173.5 HP 129.4 kW |
Maximum Torque | 553 lb-ft @ 1400 rpm 750 Nm @ 1400 rpm |
Rated Speed | 2200 rpm 2200 rpm |
Minimum Power | 93.9 HP 70 kW |
Emissions | U.S. EPA & CARB Tier 4 Final U.S. EPA & CARB Tier 4 Final |
Engine Configuration | Inline 4 Inline 4 |
Bore | 4.1 in 105 mm |
Stroke | 5 in 127 mm |
Displacement | 268.5 in³ 4.4 l |
Compression Ratio | 16.5:1 16.5:1 |
Aspiration | Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) |
Combustion System | Direct Injection Direct Injection |
Rotation from Flywheel End | Counterclockwise Counterclockwise |
Aftertreatment | DOC+SCR or DOC+DPF+SCR DOC+SCR or DOC+DPF+SCR |
Length | 33.3 in 845 mm |
Width | 29.1 in 742 mm |
Height | 34.1 in 868 mm |
Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 926 lb 420 kg |
Length | 26.5 in 675 mm |
Width | 18.8 in 478 mm |
Height | 15.3 in 390 mm |
Weight | 99 lb 45 kg |
Diameter | 10.6 in 270 mm |