Industrial Diesel Engines C9.3B China NR4 China Nonroad Stage IV

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Key Specs

Maximum Power: 456 hp; 340 kW

Maximum Torque: 1540 lb-ft @ 1400 rpm; 2088 Nm @ 1400 rpm

Emissions: China Nonroad Stage IV; China Nonroad Stage IV

C9.3B China NR4
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Overview

The Cat?� C9.3B Industrial Diesel Engine is offered in
ratings ranging from 250-340 bkW (335-456 bhp)
@ 1800-2200 rpm. These ratings meet U.S. EPA
Tier 4 Final, EU Stage V, Japan 2014, and Korea Tier 4
Final* or China Nonroad Stage IV emission standards.
The C9.3B engines are ideal choices to power
applications in agriculture, aircraft ground support,
construction, forestry, general industrial, material
handling, and mining.

Benefits

Delivers 18% More Power compared to previous models

21% Increase in Torque compared to previous models

Engine package is over 12% lighter compared to previous models

Features At A Glance

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Installation

With a full list of configurable options and an engine-mounted aftertreatment, the Cat C9.3B is an easy-to-install option that offers the power of larger engine platforms in a smaller engine package.

Advanced Features

Inlet throttle valve technology manages heat and in-cylinder dosing to create seamless DPF regeneration and a high-pressure common rail fuel system elimates the need for coolers, creating a simpler and lighter engine that's 18% more powerful than its predecessor engine—so operators get work done no matter when, no matter what.

Ideal Applications

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

Between 500-hour oil service and 5000-hour DPF ash intervals and Caterpillar-patented design technology that enables the removal of EGRs, the need for parts and service keeps lifetime engine ownership costs down and ROI up. And because the Cat C9.3B uses the latest injector technology, owners can benefit from an overall fuel consumption reduction of up to 8% when compared to its predecessor engine.

Cat Dealer Product Support

Expert assistance is never far away with the Cat C9.3B. With an included warranty and product support through the expansive global Cat dealer network, worldwide service and maintenance is all part of the package. See your Cat dealer for details.

Safety

The Cat C9.3B is a finely tuned machine, running quieter and more efficiently than previous engines making it safer for job site operators who can stay focused on the task at hand.

With a full list of configurable options and an engine-mounted aftertreatment, the Cat C9.3B is an easy-to-install option that offers the power of larger engine platforms in a smaller engine package.

The Cat C9.3B is a finely tuned machine, running quieter and more efficiently than previous engines making it safer for job site operators who can stay focused on the task at hand.

Specifications Standard Equipment

Product Specifications for C9.3B China NR4

Power Rating

Maximum Power	456 hp 340 kW
Maximum Torque	1540 lb-ft @ 1400 rpm 2088 Nm @ 1400 rpm
Rated Speed	1800-2200 rpm 1800-2200 rpm
Minimum Power	335 hp 250 kW

Emission Standards

Emissions

China Nonroad Stage IV China Nonroad Stage IV

General

Engine Configuration	In-Line 6 In-Line 6
Bore	4.5 in 115 mm
Stroke	5.9 in 149 mm
Displacement	567.5 in³ 9.3 l
Compression Ratio	17.0:1 17.0:1
Aspiration	Turbocharged-Aftercooled (TA) Turbocharged-Aftercooled (TA)
Combustion System	Direct Injection Direct Injection
Rotation from Flywheel End	Counterclockwise Counterclockwise
Aftertreatment	DOC+DPF+SCR DOC+DPF+SCR

Engine Dimensions - Approximate

Length	44.3 in 1125 mm
Width	31.1 in 791 mm
Height	42 in 1068 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	1907 lb 865 kg

Aftertreatment Dimensions

Length	36.4 in 925 mm
Width	27.3 in 694 mm
Height	17 in 432 mm
Weight	211 lb 96 kg

C9.3B China NR4 Standard Equipment

Air Inlet System

Turbocharged

Air-to-Air Aftercooled

Mid-mount turbocharged system with front and rear exhaust configurations

Control System

Electronic control system

Over-foam wiring harness

Automatic altitude compensation

Power compensated for fuel temperature

Configurable software features

Engine monitoring system SAE J1939 broadcast and control

Integrated Electronic Control Unit (ECU)

Remote fan control

Cooling System

Vertical or RH thermostat outlet

Centrifugal water pump

Guidance on cooling system design available through your dealer to ensure equipment reliability

Flywheels and Flywheel Housing

Available SAE 1 power take-off with optional SAE A, SAE B, SAE C power take-off drives. Engine power can also be taken from the front of the engine with optional attachments. (Tier 4 Final, Proposed Stage V)

Fuel System

Electronic high pressure common rail

Primary fuel filter

Secondary and tertiary fuel filters

Fuel transfer pump

Electronic fuel priming

Lube System

Open crankcase ventilation system

Oil cooler

Oil filler

Lube oil filter

Oil dipstick

Gear driven oil pump

Choice of front, rear or center sumps

Open crankcase ventilation system with fumes disposal (optional OCV filter system)

Power Take Off (PTO)

SAE A, SAE B or SAE C power take off (PTO) drives. Engine power can also be taken from the front of the engine on some applications.

General

Paint: Caterpillar yellow, with optional colors available at request

Vibration damper

Lifting eyes

Aftertreatment

Clean Emissions Module (CEM) consisting of Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC) and high-efficiency Selective Catalytic Reduction (SCR)

Tier 4 Final, Proposed Stage V Aftertreatment

Pump Electronic Control Unit (PETU)

Available in 12V or 24V systems

Product Specifications for C9.3B China NR4

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Power Rating

Maximum Power	456 hp 340 kW
Maximum Torque	1540 lb-ft @ 1400 rpm 2088 Nm @ 1400 rpm
Rated Speed	1800-2200 rpm 1800-2200 rpm
Minimum Power	335 hp 250 kW

Emission Standards

Emissions

China Nonroad Stage IV China Nonroad Stage IV

General

Engine Configuration	In-Line 6 In-Line 6
Bore	4.5 in 115 mm
Stroke	5.9 in 149 mm
Displacement	567.5 in³ 9.3 l
Compression Ratio	17.0:1 17.0:1
Aspiration	Turbocharged-Aftercooled (TA) Turbocharged-Aftercooled (TA)
Combustion System	Direct Injection Direct Injection
Rotation from Flywheel End	Counterclockwise Counterclockwise
Aftertreatment	DOC+DPF+SCR DOC+DPF+SCR

Engine Dimensions - Approximate

Length	44.3 in 1125 mm
Width	31.1 in 791 mm
Height	42 in 1068 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	1907 lb 865 kg

Aftertreatment Dimensions

Length	36.4 in 925 mm
Width	27.3 in 694 mm
Height	17 in 432 mm
Weight	211 lb 96 kg

C9.3B China NR4 Standard Equipment

Air Inlet System

Turbocharged

Air-to-Air Aftercooled

Mid-mount turbocharged system with front and rear exhaust configurations

Control System

Electronic control system

Over-foam wiring harness

Automatic altitude compensation

Power compensated for fuel temperature

Configurable software features

Engine monitoring system SAE J1939 broadcast and control

Integrated Electronic Control Unit (ECU)

Remote fan control

Cooling System

Vertical or RH thermostat outlet

Centrifugal water pump

Guidance on cooling system design available through your dealer to ensure equipment reliability

Flywheels and Flywheel Housing

Available SAE 1 power take-off with optional SAE A, SAE B, SAE C power take-off drives. Engine power can also be taken from the front of the engine with optional attachments. (Tier 4 Final, Proposed Stage V)

Fuel System

Electronic high pressure common rail

Primary fuel filter

Secondary and tertiary fuel filters

Fuel transfer pump

Electronic fuel priming

Lube System

Open crankcase ventilation system

Oil cooler

Oil filler

Lube oil filter

Oil dipstick

Gear driven oil pump

Choice of front, rear or center sumps

Open crankcase ventilation system with fumes disposal (optional OCV filter system)

Power Take Off (PTO)

SAE A, SAE B or SAE C power take off (PTO) drives. Engine power can also be taken from the front of the engine on some applications.

General

Paint: Caterpillar yellow, with optional colors available at request

Vibration damper

Lifting eyes

Aftertreatment

Clean Emissions Module (CEM) consisting of Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC) and high-efficiency Selective Catalytic Reduction (SCR)