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

Power Rating

Maximum Power 275 HP 129.4 HP -
Maximum Torque 774 lb-ft @ 1400 rpm - -
Rated Speed 116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm 2200 rpm -
Minimum Power 156 HP 129.4 HP -

Emission Standards

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 -

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel -
Bore 4.1 in 4.1 in -
Stroke 5.3 in 5 in -
Displacement 427.7 in³ 268.5 in³ -
Compression Ratio 16.8:1 16.2:1 -
Aspiration Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA) -
Rotation from Flywheel End Counterclockwise Counterclockwise -
Aftertreatment - - -

Power Unit Dimensions

Length 68 in 53.5 in -
Width 31 in 29.5 in -
Height 44.8 in 37.9 in -
Weight 1737 lb 1146 lb -
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