Cat® C7.1 ACERT™ Diesel Engine

Demanding conditions, applications and environments make the Cat® C7.1 engines the perfect solution for your severe duty equipment. With decades of diesel engine innovation and expertise behind these engines, they deliver the low operating costs and legendary Cat reliability and durability that give you a powerful advantage. More importantly, they’re backed by the world-class Cat dealer network ready to service and support every Cat industrial engine. Industries and applications powered by C7.1 engines include: Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Feller Bunchers, Forestry, Forklifts, General Industrial, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Sweepers, Paving Equipment, Pumps, Skidders, Specialty Ag Equipment, Sprayers, Trenchers and Underground Mining Equipment. Cat® C7.1 Industrial Diesel Engines, with ratings: 129-225 bkW (172-301.8 bhp) @ 2200 rpm, meet U.S. EPA Tier 4 Final, EU Stage V emission standards. This information about Emissions describes the particular rating’s emissions technology. For more information about emissions certification, please contact your local Cat dealer.

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Engine Configuration
In-Line 6, 4-Stroke-Cycle Diesel
Cooling System Capacity
15.2 L (16 qt)
Lube System (refill)
13-16 L (13.7-16.9 U.S. qts)
Length
1063.7 mm (41.9 in)

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Product Specs

General

Engine Configuration
In-Line 6, 4-Stroke-Cycle Diesel
Cooling System Capacity
15.2 L (16 qt)
Lube System (refill)
13-16 L (13.7-16.9 U.S. qts)
Bore
4.1in
Stroke
5.3in
Displacement
427.7in³
Aspiration
Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Compression Ratio
16.5:1
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise
Engine Configuration
In-Line 6
Bore
105 mm (4.1 in)
Stroke
135 mm (5.3 in)
Displacement
7 L (427.7 in³)
Cooling System - Capacity
15.2 L (16 qt)
Lube System - Refill
13-16 L (13.7-16.9 U.S. qts)
Aftertreatment
DOC+DPF+SCR

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 - Net Dry (Basic Operating Engine Without Optional Attachments)
715 kg (1576 lb)

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)

Power Rating

Minimum Power
172HP
Maximum Power
320HP
Rated Speed
2200 rpm
Maximum Torque
935lb-ft @ 1400 rpm

Emission Standards

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

Engine Dimensions - Approximate

Length
41.9in
Height
907 mm (35.7 in)
Length
1063.7 mm (41.9 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
715 kg (1576 lb)
Width
753-820.2 mm (29.6-32.3 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
1658lb
Width
31.4in
Height
35.9in

Aftertreatment Dimensions

Length
29in
Width
30.3in
Height
18.1in
Diameter
13.3in
Weight
236lb

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)

Standard/Optional Features

Standard Equipment:

  • 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 at request
  • U.s. Epa Tier 4 Final, Eu Stage V 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

Optional Equipment: