C13B Tier 4 Diesel Engines - Highly Regulated

Industrial Diesel Engines C13B China NR4

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Key Specs

Maximum Power
577 HP
430 kW
Maximum Torque
1943 lb-ft @ 1400 rpm
2634 Nm @ 1400 rpm
China Nonroad IV
China Nonroad IV


The Cat® C13B engine supplies remarkable power and torque in a smaller, lighter engine package. With an aftertreatment that is 65% smaller and 54% lighter than its predecessor and over 34 kW/L of power density, the C13B is designed to allow OEMs to downsize their engine platforms, lower installation costs and maximize uptime by providing long life in the toughest applications.


Peak Power Increased Up To 20% Compared to Previous Models

Over 120 MILLION hours of customer application experience

Engine package is 32% lighter, compared to previous models

Product Specifications for C13B China NR4

Maximum Power 577 HP 430 kW
Maximum Torque 1943 lb-ft @ 1400 rpm 2634 Nm @ 1400 rpm
Rated Speed 1800-2100 rpm 1800-2100 rpm
Minimum Power 456 HP 340 kW
Emissions China Nonroad IV China Nonroad IV
Engine Configuration In-Line 6 In-Line 6
Bore 5.1 in 130 mm
Stroke 6.2 in 157 mm
Displacement 762.8 in³ 12.5 l
Compression Ratio 15.8:1 15.8:1
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
Length 50 in 1274 mm
Width 39 in 994 mm
Height 45 in 1134 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 2480 lb 1125 kg
Length 35.3 in 896 mm
Width 31.8 in 807 mm
Height 18.1 in 460 mm
Weight 220 lb 100 kg

C13B China NR4 Standard Equipment

Air Inlet System

  • Turbocharged
  • Air-to-Air Aftercooled
  • Front or rear exhaust configurations available

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 No. 1 power take-off with optional SAE B or SAE C power take-off drives. Engine power can also be taken from the front of the engine with optional attachments.

Fuel System

  • Mechanical Electronic Unit Injector fuel system (MEUI-C)
  • 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 (OCV filter system required for EU Stage V certification engines)

Power Take Off (PTO)

  • 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.


  • Caterpillar yellow paint, with optional colors available on request
  • Vibration damper
  • Lifiting eyes

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