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 Cat® C4.4 Industrial Power Unit |
 Cat® C4.4 Industrial Power Unit |
 Cat® C32 Industrial Power Unit |
 Cat® C18 Industrial Power Unit (<560 kW) |
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Power Rating |
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|---|---|---|---|---|
| Maximum Power | 129.4 HP | 108.6 HP | 1000 HP | 630 HP |
| Rated Speed | 2200 rpm | 2200 rpm | 1800 rpm | 1800-2000 rpm |
| Minimum Power | 129.4 HP | 81.8 HP | 1000 HP | 575 HP |
| Maximum Torque | - | - | 3825 lb-ft @ 1200 rpm | 2177 lb-ft @ 1300 rpm |
Emission Standards |
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| Emissions | China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA | UN ECE R96 Stage IIIA | U.S. EPA Tier 4 Final and EU Stage V | U.S. EPA Tier 4 Final, EU Stage V, China Nonroad Stage IV |
General |
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| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel | Inline 4, 4-Stroke-Cycle Diesel | V-12 | Inline 6, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in | 4.1 in | 5.7 in | 5.7 in |
| Stroke | 5 in | 5 in | 6.4 in | 7.2 in |
| Displacement | 268.5 in³ | 268.5 in³ | 1958.9 in³ | 1104.5 in³ |
| Compression Ratio | 16.2:1 | 18.2:1 | 16.0:1 | 16.0:1 |
| Aspiration | Turbocharged Aftercooled (TA) | Turbocharged (T) | Twin Turbocharged Aftercooled (TTA) | Turbocharged Aftercooled (TA) |
| Rotation from Flywheel End | Counterclockwise | Counterclockwise | Counterclockwise | Counterclockwise |
| Aftertreatment | - | - | DOC | DOC+DPF+SCR |
| Cycle | - | - | 4 | - |
| Combustion System | - | - | Direct Injection | - |
| Cooling System | - | - | liquid | - |
Power Unit Dimensions |
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| Length | 53.5 in | 49.6 in | 100.7 in | 99.7 in |
| Width | 29.5 in | 28.9 in | 64.4 in | 48.9 in |
| Height | 37.9 in | 38 in | 77.6 in | 79 in |
| Weight | 1146 lb | 1025 lb | - | 5842 lb |
Aftertreatment Dimensions |
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| Width | - | - | - | 43.8 in |
| Height | - | - | - | 25.7 in |
| Weight | - | - | - | 591 lb |
Aftertreatment Dimensions* |
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| Diameter | - | - | - | 13 in |
PETU Dimensions - Tier 4 Final Only |
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| Length | - | - | - | 33.6 in |
| Width | - | - | - | 11.3 in |
| Height | - | - | - | 21.7 in |
| Weight | - | - | - | 42.8 lb |
| Volume Capacity | - | - | - | 51.1 qt (US) |
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