Industrial Diesel Engines - Lesser Regulated & Non-Regulated
Industrial Diesel Engines - Highly Regulated

Cat® C18 Industrial Diesel Engine

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Overview

The Cat® C18 Industrial Diesel Engine is offered in ratings ranging from 429-522 bkW (575-700 bhp) @ 1800-2100 rpm. These ratings meet China Stage II, U.S. EPA Tier 3 equivalent, and EU Stage IIIA equivalent emission standards. Ratings: 571-597 bkW (765-800 bhp) @ 1800-2100 rpm meet U.S. EPA Tier 2 equivalent emission standards. Non-certified ratings are also available at 429-522 bkW (575-700 bhp) @ 1800-2100. Industries and applications powered by C18 engines include Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers, Grinders, Compactors, Rollers, Compressors, Construction, Cranes, Dredgers, Forestry, General Industrial, Hydraulic Power Units, Irrigation Equipment, Material Handling, Mining, Mobile Earthmoving Equipment, Paving Equipment, Pumps, Shovels/Draglines, Surface Hauling Equipment and Trenchers.

Power Rating

Minimum Power
575.00 bhp
429.00 bkW
Maximum Power
800.00 bhp
597.00 bkW
Rated Speed
1800-2100 rpm

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
145 mm (5.71 in)
Stroke
183 mm (7.2 in)
Displacement
18.1 L (1104.5 in³)
Aspiration
Turbocharged Aftercooled (TA)
Compression Ratio
16.3:1
Combustion System
Direct Injection
Rotation (from flywheel end)
Counterclockwise

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Length
1388.2-1414 mm (54.6-55.7 in)
Width
921-974 mm (36.3-38.3 in)
Height
1243-1257 mm (48.9-49.5 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments)
1673 kg (3688 lb)

Power Rating

Minimum Power
575.00 HP
429.00 kW
Maximum Power
800.00 HP
597.00 kW
Rated Speed
1800-2100 rpm

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
145 mm (5.71 in)
Stroke
183 mm (7.2 in)
Aspiration
Turbocharged Aftercooled (TA)
Displacement
18.1 L (1104.5 in³)
Compression Ratio
16.3:1
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise

Engine Dimensions - Approximate

Height
1243-1257 mm (48.9-49.5 in)
Length
1388.2-1414 mm (54.6-55.7 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
1673 kg (3688 lb)
Width
921-974 mm (36.3-38.3 in)
Width
921-974 mm (36.3-38.3 in)

General

Bore
5.70 in
145.00 mm
Stroke
7.20 in
183.00 mm
Displacement
1104.50 in³
18.10 l

Engine Dimensions - Approximate

Height
49.50 in
1257.00 mm
Length
55.70 in
1414.00 mm
Width
38.30 in
974.00 mm

Power Rating

Maximum Torque
2696.00 lb-ft @ 1400 rpm
3655.00 Nm @ 1400 rpm

Engine Dimensions - Approximate

Weight - Net Dry - Basic Operating Engine Without Optional Attachments
3688.00 lb
1673.00 kg

General

Aftertreatment
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Features

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
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