Cat® C7.1 Industrial Power Unit

Emissions	U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final)

Aftertreatment	DOC+DPF+SCR
Aspiration	Series Turbocharged Aftercooled (TTA)
Bore	4.1in
Compression Ratio	16.5:1
Displacement	427.7in³
Engine Configuration	Inline 6, 4-Stroke-Cycle Diesel
Rotation from Flywheel End	Counterclockwise
Stroke	5.3in

Air Inlet
- Standard air cleaners
Control System
- Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
- Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines
Cooling System
- Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
- 50:50 water glycol mix
- Guidance on cooling system design available through your dealer to ensure equipment reliability
Flywheels And Flywheel Housing
- Wide choice of drivetrain interfaces, including SAE No. 1, SAE No. 2, and SAE No. 3 configurations
Fuel System
- Electronic high pressure common rail
Lube System
- Wide choice of sumps for different applications
General
- Paint: Caterpillar yellow, with optional colors available at request
U.s. Epa Tier 4 Final, Eu Stage V, Japan 2014 (tier 4 Final) Aftertreatment/ Clean Emissions Control Equipment
- Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
- NOx Reduction System (NRS)
- Selective Catalytic Reduction (SCR)
- 3" flex pipe connection with straight, 45°, and 90° options for flexibility

Cat^® C7.1 Industrial Power Unit