C1.7 China Nonroad Stage IV Diesel Engines

Industrial Diesel Engines C1.7 China NR4

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Key Specs

Maximum Power
25.3 HP
18.9 kW
Maximum Torque
72.2 lb-ft @ 1600 rpm
97.9 Nm @ 1600 rpm
China Nonroad Stage IV
China Nonroad Stage IV


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.

Product Specifications for C1.7 China NR4

Maximum Power 25.3 HP 18.9 kW
Maximum Torque 72.2 lb-ft @ 1600 rpm 97.9 Nm @ 1600 rpm
Rated Speed 2200 rpm 2200 rpm
Minimum Power 25.3 HP 18.9 kW
Emissions China Nonroad Stage IV China Nonroad Stage IV
Engine Configuration In-Line 3 In-Line 3
Bore 3.3 in 84 mm
Stroke 3.9 in 100 mm
Displacement 101.4 in³ 1.662 l
Compression Ratio 23:01 23:01
Aspiration Naturally aspirated Naturally aspirated
Combustion System indirect injection indirect injection
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment NA NA
Length 22.2 in 564 mm
Width 17.8 in 453 mm
Height 25.7 in 654 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 353 lb 160 kg

C1.7 China NR4 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

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