C7.1

Emission Standards
Emissions	U.S. EPA & CARB Tier 4 Final, EU Stage V

General
Engine Configuration	In-Line 6
Bore	4.1 in / 105 mm
Stroke	5.3 in / 135 mm
Displacement	427.7 in³ / 7 l
Compression Ratio	16.5:1
Aspiration	Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Combustion System	Direct Injection
Rotation from Flywheel End	Counterclockwise
Aftertreatment	DOC+DPF+SCR

Engine Dimensions - Approximate
Length	41.9 in / 1064 mm
Width	31.4 in / 798 mm
Height	35.9 in / 912 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	1658 lb / 752 kg

Aftertreatment Dimensions*
Diameter	13.3 in / 338 mm

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
- Innovative filter design to ensure maximum protection of the engine
Lube System
- Wide choice of sumps for different applications
General
- Paint: Caterpillar yellow, with optional colors available on 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