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 Cat® C4.4 Industrial Power Unit |
 Cat® C4.4 Industrial Power Unit |
 Cat® C27 Industrial Power Unit |
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Power Rating |
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|---|---|---|---|
| Maximum Power | 108.6 HP | 129.4 HP | 950 HP |
| Rated Speed | 2200 rpm | 2200 rpm | 1800 rpm |
| Minimum Power | 81.8 HP | 129.4 HP | 800 HP |
| Maximum Torque | - | - | 3211 lb-ft @ 1200 rpm |
Emission Standards |
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| Emissions | UN ECE R96 Stage IIIA | China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA | U.S. EPA Tier 4 Final, EU Stage V |
General |
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| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel | Inline 4, 4-Stroke-Cycle Diesel | V-12, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in | 4.1 in | 5.7 in |
| Stroke | 5 in | 5 in | 6 in |
| Displacement | 268.5 in³ | 268.5 in³ | 1649.5 in³ |
| Compression Ratio | 18.2:1 | 16.2:1 | 16.0:1 |
| Aspiration | Turbocharged (T) | Turbocharged Aftercooled (TA) | Twin Turbocharged-Aftercooled (TTA) |
| Rotation from Flywheel End | Counterclockwise | Counterclockwise | Counterclockwise |
| Aftertreatment | - | - | DOC |
Power Unit Dimensions |
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| Length | 49.6 in | 53.5 in | - |
| Width | 28.9 in | 29.5 in | - |
| Height | 38 in | 37.9 in | - |
| Weight | 1025 lb | 1146 lb | - |
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