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Industrial

Cat® C7.1 ACERT™ Diesel Engine

  • Maximum Power
    320 HP
  • Maximum Torque
    935 lb-ft @ 1400 rpm
  • Rated Speed
    2200 rpm
  • Minimum Power
    172 HP
Power Rating
Maximum Power
320 HP
Maximum Torque
935 lb-ft @ 1400 rpm
Rated Speed
2200 rpm
Minimum Power
172 HP
Emission Standards
Emissions
U.S. EPA & CARB Tier 4 Final, EU Stage V
General
Engine Configuration
In-Line 6, 4-Stroke-Cycle Diesel
Engine Configuration
In-Line 6
Bore
4.1 in
Stroke
5.3 in
Bore
105 mm (4.1 in)
Displacement
427.7 in³
Compression Ratio
16.5:1
Stroke
135 mm (5.3 in)
Aspiration
Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Combustion System
Direct Injection
Displacement
7 L (427.7 in³)
Rotation from Flywheel End
Counterclockwise
Aftertreatment
DOC+DPF+SCR
Cooling System Capacity
15.2 L (16 qt)
Cooling System
15.2 L (16 qt)
Lube System
13-16 L (13.7-16.9 U.S. qts)
Lube System
13-16 L (13.7-16.9 U.S. qts)
Engine Dimensions - Approximate
Length
41.9 in
Width
31.4 in
Height
35.9 in
Weight
1658 lb
Height
907 mm (35.7 in)
Length
1063.7 mm (41.9 in)
Weight
715 kg (1576 lb)
Width
753-820.2 mm (29.6-32.3 in)
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Length
1063.7 mm (41.9 in)
Width
753-820.2 mm (29.6-32.3 in)
Height
907 mm (35.7 in)
Weight
715 kg (1576 lb)
Aftertreatment Dimensions
Length
29 in
Width
30.3 in
Height
18.1 in
Weight
236 lb
Aftertreatment Dimensions*
Diameter
13.3 in
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)
Length
771-918.7 mm (30.4-36.2 in)
Width
714.4-793 mm (28.1-31.2 in)
Height
468-643.9 mm (18.4-25.3 in)
Weight
90-134 kg (198-295.4 lb)
Diameter
287-337.8 mm (11.3-13.3 in)
Aftertreatment Dimensions - Approximate
Diameter
287-337.8 mm (11.3-13.3 in)
Height
453-455 mm (17.8-18.1 in)
Length
610-733 mm (24-28.9 in)
Weight
65-107 kg (143.3-235.9 lb)
Width
623-769 mm (24.5-30.3 in)
  • 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