C4.4 China NR4

Industrial Diesel Engines C4.4 China NR4 C4.4 China Nonroad IV

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Key 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

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Installation

Installation

A modular and compact core on the Cat C4.4 makes installing the engine on any number of machine applications a relative breeze. And when downsizing from five-liter platforms, OEMs can see a 20% reduction in length, 5% reduction in height and 40% reduction in weight of the engine, significantly reducing installation costs.
Advanced Features

Advanced Features

With a 20% increase in power density and 30% increase in torque when compared to its predcessor engine, the compact design of the Cat C4.4 reduces heat loss for more efficient engine output, so operators can conquer even the toughest tasks with relative ease.
Ideal Applications

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

Total Cost of Ownership

There's a lot that can affect the lifetime cost of ownership of your engine. It can be as simple as fluid intake and as complex as weight distribution. Either way, the Cat C4.4 has it covered. When compared to similar 6-cylinder plaforms, the C4.4 saves more than 18% in fluid consumption and is specially balanced to be its most effective, every day.
Cat Dealer Product Support

Cat Dealer Product Support

The Cat C4.4 makes maintenance and service routines simple thanks to the worldwide Cat dealer network support. And for even more peace of mind, your Cat engine comes under warranty. See your Cat dealer for details.
Safety

Safety

Built-in clean emissions modules keep the Cat C4.4 performing at its peak while also keeping the air around the work site cleaner.
Specifications Standard Equipment

Product Specifications for C4.4 China NR4

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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
Emissions China Nonroad Stage IV China Nonroad Stage IV
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
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
Length 26.5 in 673 mm
Width 16.2 in 411 mm
Height 12.2 in 309 mm
Weight 110 lb 50 kg
Diameter 10.64 in 270.3 mm

C4.4 China NR4 Standard Equipment

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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.

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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
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Maximum Torque
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Emissions
China Nonroad Stage IV
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C4.4 China Nonroad IV engine with aftertreatment

C4.4 China Nonroad IV engine with aftertreatment

C4.4 China Nonroad IV engine with aftertreatment

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