C18

Maximum Power
800 HP / 597 kW
Maximum Torque
2696 lb-ft @ 1400 rpm / 3655 Nm @ 1400 rpm
Minimum Power
575 HP / 429 kW

On construction sites and mining operations, in agriculture and forestry, and in a wide range of industries, Cat® C18 Industrial Diesel Engines deliver the power, performance and durability to take on the biggest challenges. More importantly, they're backed by the world-class Cat dealer network ready to service and support every Cat® industrial engine.

Power Rating
Maximum Power 800 HP / 597 kW
Maximum Torque 2696 lb-ft @ 1400 rpm / 3655 Nm @ 1400 rpm
Rated Speed 1800-2100 rpm
Minimum Power 575 HP / 429 kW
Emission Standards
Emissions China Nonroad III, U.S. EPA Tier 3 equivalent or U.S. EPA Tier 2 equivalent, EU Stage IIIA equivalent, or Non-certified
General
Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 5.7 in / 145 mm
Stroke 7.2 in / 183 mm
Displacement 1104.5 in³ / 18.1 l
Compression Ratio 16.3:1
Aspiration Turbocharged Aftercooled (TA)
Combustion System Direct Injection
Rotation from Flywheel End Counterclockwise
Aftertreatment -
Engine Dimensions - Approximate
Length 55.7 in / 1414 mm
Width 38.3 in / 974 mm
Height 49.5 in / 1257 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 3688 lb / 1673 kg

Standard Equipment

  • Air Inlet System
    • Turbocharged Aftercooled (429-470 bkW, 575-630 bhp)
    • Twin Turbocharged Aftercooled (522-597 bkW, 700-800 bhp)
    • Air-to-Air Aftercooled
  • Charging System
    • Charging alternator 24 volt, 50 amp
  • Control System
    • Electronic governing, PTO speed control
    • Programmable ratings
    • Automatic altitude compensation
    • Power compensation for fuel temperature
    • Programmable low and high idle and total engine limit
    • Electronic diagnostics and fault logging
    • Engine monitoring system SAE J1939 broadcast and control
    • ADEM™ A4 Electronic Control Unit (ECU)
  • Cooling System
    • Thermostats and housing, vertical outlet
    • Jacket water pump, centrifugal
    • Water pump, inlet
  • Exhaust System
    • Exhaust manifold, dry
    • Optional exhaust outlet
  • Flywheels and Flywheel Housing
    • SAE No. 1 or SAE No. 0 flywheel housing
  • Fuel System
    • MEUI injection
    • Fuel filter, secondary (2 micron)
    • Fuel filter, tertiary (2 micron)
    • ACERT™ Technology
    • Fuel transfer pump
    • Fuel priming pump
  • Lube System
    • Crankcase breather
    • Oil cooler
    • Oil filler
    • Lube oil filter
    • Front sump oil pan
    • Oil dipstick
    • Gear driven oil pump
  • General
    • Vibration damper
    • Lifting eyes
    • Cold start capability to -20° C (-4° F)
    • Paint: Caterpillar yellow, with optional colors available at request
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