C18

Cat® C18 Industrial Diesel Engine

C18 LRC Diesel Engines - Lesser Regulated & Non-Regulated
Maximum Power
800 hp
Maximum Torque
2696 lb-ft @ 1400 rpm
Rated Speed
1800-2100 rpm
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.
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THE RUNDOWN

Reliable, Quiet and Durable Power
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Broad Application Range
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
Package Size
Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.
World-class 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
Power Rating
Maximum Power800hp
Maximum Torque2696lb-ft @ 1400 rpm
Rated Speed1800-2100 rpm
Minimum Power575hp
Emission Standards
EmissionsChina Nonroad III, U.S. EPA Tier 3 equivalent or U.S. EPA Tier 2 equivalent, EU Stage IIIA equivalent, or Non-certified
General
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore5.7in
Stroke7.2in
Displacement1104.5in³
Compression Ratio16.3:1
AspirationTurbocharged Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length55.7in
Width38.3in
Height49.5in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments3688lb
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