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 Cat® C4.4 Industrial Power Unit |
 Cat® C7.1 Industrial Power Unit |
 Cat® C4.4 Industrial Power Unit |
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Power Rating |
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|---|---|---|---|
| Maximum Power | 129.4 HP | 275 HP | 108.6 HP |
| Rated Speed | 2200 rpm | 116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm | 2200 rpm |
| Minimum Power | 129.4 HP | 156 HP | 81.8 HP |
| Maximum Torque | - | 774 lb-ft @ 1400 rpm | - |
Emission Standards |
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| Emissions | China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA | China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA | UN ECE R96 Stage IIIA |
General |
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| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel | Inline 6, 4-Stroke-Cycle Diesel | Inline 4, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in | 4.1 in | 4.1 in |
| Stroke | 5 in | 5.3 in | 5 in |
| Displacement | 268.5 in³ | 427.7 in³ | 268.5 in³ |
| Compression Ratio | 16.2:1 | 16.8:1 | 18.2:1 |
| Aspiration | Turbocharged Aftercooled (TA) | Turbocharged Aftercooled (TA) | Turbocharged (T) |
| Rotation from Flywheel End | Counterclockwise | Counterclockwise | Counterclockwise |
| Aftertreatment | - | - | - |
Power Unit Dimensions |
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| Length | 53.5 in | 68 in | 49.6 in |
| Width | 29.5 in | 31 in | 28.9 in |
| Height | 37.9 in | 44.8 in | 38 in |
| Weight | 1146 lb | 1737 lb | 1025 lb |
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