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CatĀ® C4.4 Diesel Engine

CatĀ® C4.4 Diesel Engine

Power Rating

Maximum Power 173.5 HP
Maximum Torque 553 lb-ft @ 1400 rpm
Minimum Power 93.9 HP
Rated Speed 2200 rpm

Emission Standards

Emissions U.S. EPA & CARB Tier 4 Final


Aftertreatment DOC+SCR or DOC+DPF+SCR
Aspiration Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Bore 4.1 in
Combustion System Direct Injection
Compression Ratio 16.5:1
Displacement 268.5 inĀ³
Engine Configuration Inline 4
Rotation from Flywheel End Counterclockwise
Stroke 5 in

Engine Dimensions - Approximate

Height 34.1 in
Length 33.3 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 926 lb
Width 29.1 in

Aftertreatment Dimensions

Height 15.3 in
Length 26.5 in
Weight 99 lb
Width 18.8 in

Aftertreatment Dimensions*

Diameter 10.6 in

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