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Cat® C7.1 Diesel Engine
Cat® C4.4 Industrial Power Unit
Cat® C4.4 Industrial Power Unit

Power Rating

Maximum Power 217 HP 129.4 HP 108.6 HP
Maximum Torque 663 lb-ft @ 1400 rpm - -
Rated Speed 1950-2200 rpm 2200 rpm 2200 rpm
Minimum Power 150 HP 129.4 HP 81.8 HP

Emission Standards

Emissions China Nonroad Stage III, UN ECE R96 Stage IIIA China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA UN ECE R96 Stage IIIA

Engine Dimensions - Approximate

Length 44.9 in - -
Width 28.4 in - -
Height 32.3 in - -
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1118 lb - -

General

Engine Configuration Inline 6, 4-Stroke-Cycle Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel
Bore 4.1 in 4.1 in 4.1 in
Stroke 5.3 in 5 in 5 in
Displacement 427.7 in³ 268.5 in³ 268.5 in³
Compression Ratio 18.2:1 16.2:1 18.2:1
Aspiration Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) Turbocharged (T)
Combustion System Direct Injection - -
Rotation from Flywheel End Counterclockwise Counterclockwise Counterclockwise
Aftertreatment - - -

Power Unit Dimensions

Length - 53.5 in 49.6 in
Width - 29.5 in 28.9 in
Height - 37.9 in 38 in
Weight - 1146 lb 1025 lb
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