Power Rating
| Maximum Power | 173.5 hp 129.4 kW |
| Maximum Torque | 553 lb-ft @ 1400 rpm 750 Nm @ 1400 rpm |
| Rated Speed | 2000 to 2200 rpm 2000 to 2200 rpm |
| Minimum Power | 147.5 hp 110 kW |
Sign In or Create 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 C4.4 China NR4
C4.4 China Nonroad IV
Request A Price Find DealerKey Specs
- Maximum Power
- 173.5 hp
- 129.4 kW
- Maximum Torque
- 553 lb-ft @ 1400 rpm
- 750 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Overview
The Cat?� C4.4 industrial diesel engine is offered in ratings ranging from 110-129.4 kW (147.5-173.5 hp) @ 2200 rpm, which meet China Nonroad Stage IV emission standards. The C4.4 is designed to meet the needs of many industries and applications, including bore/drill rigs, chippers/grinders, material handling, mining, earthmoving equipment, paving equipment, pumps, fruit harvesters equipment, turf and underground mining equipment.
Features At A Glance
Product Specifications for C4.4 China NR4
Emission Standards
| Emissions | China Nonroad Stage IV China Nonroad Stage IV |
General
| Engine Configuration | Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel |
| Bore | 4.1 in 105 mm |
| Stroke | 5 in 127 mm |
| Displacement | 268.5 in³ 4.4 l |
| Compression Ratio | 16.5:1 16.5:1 |
| Aspiration | Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) |
| Combustion System | Direct Injection Direct Injection |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Aftertreatment | DOC+DPF+SCR DOC+DPF+SCR |
Engine Dimensions - Approximate
| Length | 24.8 in 630 mm |
| Width | 29.4 in 748 mm |
| Height | 35.3 in 897 mm |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 1179 lb 535 kg |
Aftertreatment Dimensions
| Length | 26.5 in 673 mm |
| Width | 16.2 in 411 mm |
| Height | 12.2 in 309 mm |
| Weight | 110 lb 50 kg |
Aftertreatment Dimensions*
| Diameter | 10.64 in 270.3 mm |
C4.4 China NR4 Standard Equipment
Air Inlet System
- 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
Flywheels and Flywheel Housing
- Fitted with SAE3 configuration as standard
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
Power Take Off
- SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.
General
- Available with or without a balancer
- Paint: Caterpillar yellow, with optional colors available at request
China Nonroad Stage IV Aftertreatment / Clean Emissions Control Equipment
- Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
China Nonroad Stage IV Aftertreatment/ Clean Emissions Control Equipment
- Selective Catalytic Reduction (SCR)
- 3" flex pipe connection with straight, 45°, and 90° options for flexibility
See how C4.4 China NR4 compares against frequently compared products.
Industrial
C4.4 China NR4
C4.4 China Nonroad IV
Selected
- Maximum Power
- 173.5 hp
- 129.4 kW
- Maximum Torque
- 553 lb-ft @ 1400 rpm
- 750 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Industrial
C3.6 China NR4
C4.4 China NR4
- Maximum Power
- 110 hp
- 82 kW
- Maximum Torque
- 331.7 lb-ft @ 1500 rpm
- 450 Nm @ 1500 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
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.
