Cat® C7.1 ACERT™ Diesel Engine

Overview
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)
  • Exterior View

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 in
Stroke
5 in
Displacement
428 in³
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
172 HP
Maximum Power
320 HP
Rated Speed
2200 rpm
Maximum Torque
935 lb-ft @ 1400 rpm

Emission Standards

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

Engine Dimensions - Approximate

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)
Length
42 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
1,658 lb
Width
31 in
Height
36 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)

Aftertreatment Dimensions

Height
18 in
Diameter
13 in
Weight
236 lb
Length
29 in
Width
30 in

Installation

Boasting one of Caterpillar's most modular engine designs to date, the Cat C7.1 also features an engine-mounted aftertreatment that saves OEMs valuable time and space when installing into a wide variety of machines—especially industrial and construction applications. OEMs also enjoy a 20% length, 5% height and 40% weight reduction when downsizing from 9-liter platforms.

Boasting one of Caterpillar's most modular engine designs to date, the Cat C7.1 also features an engine-mounted aftertreatment that saves OEMs valuable time and space when installing into a wide variety of machines—especially industrial and construction applications. OEMs also enjoy a 20% length, 5% height and 40% weight reduction when downsizing from 9-liter platforms.

Advanced Features

The Cat C7.1 uses passive regeneration technology, so operators can continue to perform their toughest tasks, in the most severe environments, without having to wait on the engine.

The Cat C7.1 uses passive regeneration technology, so operators can continue to perform their toughest tasks, in the most severe environments, without having to wait on the engine.

Ideal Applications

Industrial, agricultural and construction applications such as: Pumps • Compressors • Chippers • Grinders • Asphalt paving equipment • Hydraulic power units • Bore rigs • Drill rigs • Tractors

Industrial, agricultural and construction applications such as: Pumps • Compressors • Chippers • Grinders • Asphalt paving equipment • Hydraulic power units • Bore rigs • Drill rigs • Tractors

Total Cost of Ownership

The benefits to downsizing are many, including an 18% decrease in overall fuel consumption when downsizing from a 6-cylinder engine. With an added 3-4% decrease in overall DEF consumption and EGR integration, the cost savings don't take long to add up.

The benefits to downsizing are many, including an 18% decrease in overall fuel consumption when downsizing from a 6-cylinder engine. With an added 3-4% decrease in overall DEF consumption and EGR integration, the cost savings don't take long to add up.

Cat Dealer Product Support

Scheduled maintenance, five-year warranty, superior dealer service and a comprehensive global dealer support network—it’s all standard with the Cat C7.1.

Scheduled maintenance, five-year warranty, superior dealer service and a comprehensive global dealer support network—it’s all standard with the Cat C7.1.

Safety

Validated with thousands of hours of field testing, the Cat C7.1 is built to meet Caterpillar's strict safety standards and customers' most demanding work sites throughout the world.

Validated with thousands of hours of field testing, the Cat C7.1 is built to meet Caterpillar's strict safety standards and customers' most demanding work sites throughout the world.

  • 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
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