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 Cat® C4.4 Diesel Engine |
 Cat® C32 Industrial Power Unit |
 Cat® C4.4 Industrial Power Unit |
 Cat® C7.1 Industrial Power Unit |
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Power Rating |
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|---|---|---|---|---|
| Maximum Power | 111.3 HP | 1000 HP | 108.6 HP | 275 HP |
| Maximum Torque | 308 lb-ft @ 1400 rpm | 3825 lb-ft @ 1200 rpm | - | 774 lb-ft @ 1400 rpm |
| Rated Speed | 2200-2400 rpm | 1800 rpm | 2200 rpm | 116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm |
| Minimum Power | 72.4 HP | 1000 HP | 81.8 HP | 156 HP |
Emission Standards |
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| Emissions | UN ECE R96 Stage IIIA | U.S. EPA Tier 4 Final and EU Stage V | UN ECE R96 Stage IIIA | China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA |
Engine Dimensions - Approximate |
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| Length | 26.1 in | - | - | - |
| Width | 23.7 in | - | - | - |
| Height | 30.5 in | - | - | - |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 674.6 lb | - | - | - |
General |
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| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel | V-12 | Inline 4, 4-Stroke-Cycle Diesel | Inline 6, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in | 5.7 in | 4.1 in | 4.1 in |
| Stroke | 5 in | 6.4 in | 5 in | 5.3 in |
| Displacement | 269 in³ | 1958.9 in³ | 268.5 in³ | 427.7 in³ |
| Compression Ratio | 18.2:1 | 16.0:1 | 18.2:1 | 16.8:1 |
| Aspiration | Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA) | Twin Turbocharged Aftercooled (TTA) | Turbocharged (T) | Turbocharged Aftercooled (TA) |
| Combustion System | Direct Injection | Direct Injection | - | - |
| Rotation from Flywheel End | Counterclockwise | Counterclockwise | Counterclockwise | Counterclockwise |
| Aftertreatment | - | DOC | - | - |
| Cycle | - | 4 | - | - |
| Cooling System | - | liquid | - | - |
Power Unit Dimensions |
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| Height | - | 77.6 in | 38 in | 44.8 in |
| Length | - | 100.7 in | 49.6 in | 68 in |
| Width | - | 64.4 in | 28.9 in | 31 in |
| Weight | - | - | 1025 lb | 1737 lb |
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