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 |
My Account
Sign In
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
Register Now
One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Welcome Back!
My Account Dashboard
Account Information
Site Settings
Security
Industrial Diesel Engines C9.3B China NR4
China Nonroad Stage IV
Request A Price Find DealerKey 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
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
Product Specifications for C9.3B China NR4
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
See how C9.3B China NR4 compares against frequently compared products.
Industrial
C9.3B China NR4
China Nonroad Stage IV
Selected
- 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
Industrial
C7.1 China NR4
- Maximum Power
- 275 hp
- 205 kW
- Maximum Torque
- 927 lb-ft @ 1400 rpm
- 1257 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Industrial
C13B China NR4
- Maximum Power
- 577 hp
- 430 kW
- Maximum Torque
- 1943 lb-ft @ 1400 rpm
- 2634 Nm @ 1400 rpm
- Emissions
- China Nonroad IV
- China Nonroad IV
Use the comparison tool to compare detailed specs of Cat and competitor models.
Compare All Modelsassignment Product Brochures and More Are Ready to Download!
Full specifications, product brochures and more. Sign up below for additional information. Or for instant access, you can skip this form.
