C1.7 China NR4

Cat® C1.7 Diesel Engine

The C1.7 is an indirect injection industrial diesel engine meeting China Nonroad Stage IV emission standards without the need for electronic control, aftertreatment or exhaust gas recirculation. It is available with many factory configurable options to minimize the costs of machine development and of manufacturing.

Reliable, Quiet and Durable Power

Manufactured in some of the world's most modern and highly automated production facilities, the Cat® C1.7 is proven to deliver durable power and offers a wide range of customization options that refuse to compromise quality and durablity.

The stiff block and indirect injection system make this a quiet engine, minimizing operator fatigue and saving money forOEMs in sound attenuation measures.

High Performance

Substantial torque rise delivers impressive performance throughout a wide speed range while maintaining low operating costs.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Broad Application Range

Wide range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Compact Size

With a 18.9 kW (25.3 hp) power rating, the C1.7 allows OEMs to consider different installation, operating and commercialrequirements. This model is particularly adapted to machines which need high torque, low speed operation or good cold start capability.

Exceptional Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Standard Equipment

Air Inlet System
  • Standard air cleaner
  • Naturally aspirated
Control System
  • Alternator 12 volt 65 or 85 amp
  • Starter motor 12 volt
  • Glow plug starting aid
  • Electronic control unit with mechanical fuel system
  • N/A
  • All connectors and wiring harness are waterproof and designed to withstand harsh non-road environments
  • Robust reliable sensors
Cooling System
  • Belt-driven coolant pump
  • Coolant temperature switch
  • Choice of cooling fans
  • Fan drive options
Flywheel & Flywheel Housing
  • Flywheel and flywheel housing options
Fuel System
  • Indirect injection
  • Spin-on fuel filter
  • Simple pintle nozzle injectors
Lube System
  • Spin on oil filter
  • Lube oil pressure switch
  • Sump options for various applications
Power Take Off (PTO)
  • SAE A PTO drive
  • Cast iron, engine block
  • Cast iron exhaust manifold options
  • Paint: Caterpillar yellow, with optional colors available on request
  • Induction manifold options
  • Engine mounting
  • Block heater provision
Aftertreatment/Clean Emissions Control Equipment
  • NA
  • NA

Additional information

Offering Type

Power Rating - Maximum Power

18.9 kW ( 25.3 HP )

Power Rating - Maximum Torque

97.9 Nm @ 1600 rpm ( 72.2 lb-ft @ 1600 rpm )

Power Rating - Rated Speed

2200 rpm

Power Rating - Minimum Power

18.9 kW ( 25.3 HP )

Emission Standards - Emissions

China Nonroad Stage IV

General - Engine Configuration

In-Line 3

General - Bore

84 mm ( 3.3 in )

General - Stroke

100 mm ( 3.9 in )

General - Displacement

1.662 l ( 101.4 in³ )

General - Compression Ratio


General - Aspiration

Naturally aspirated

General - Combustion System

indirect injection

General - Rotation from Flywheel End


General - Aftertreatment


Engine Dimensions - Approximate - Length

564 mm ( 22.2 in )

Engine Dimensions - Approximate - Width

453 mm ( 17.8 in )

Engine Dimensions - Approximate - Height

654 mm ( 25.7 in )

Engine Dimensions - Approximate - Weight - Net Dry - Basic Operating Engine Without Optional Attachments

160 kg ( 353 lb )

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