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Overview

The Cat® 3406C Industrial Diesel Engine is offered in ratings ranging from 298-347 bkW (400-465 bhp) @ 1800-2100 rpm. These ratings are non-certified and are available for global non-regulated areas. Industries and applications powered by 3406C engines include: Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Dredgers, Forestry, General Industrial, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Paving Equipment, Pumps, Shovels/Draglines, Specialty Ag Equipment, Surface Hauling Equipment, Trenchers and Underground Mining Equipment.

Power Rating

Units:
Minimum Power 400.0 bhp 298.0 bkW Less
Maximum Power 465.0 bhp 347.0 bkW Less
Frequency 1800-2100 rpm 1800-2100 rpm Less

Emission Standards

Emissions Non-Certified Non-Certified Less

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel Less
Bore 137.2 mm (5.4 in) 137.2 mm (5.4 in) Less
Stroke 165.1 mm (6.5 in) 165.1 mm (6.5 in) Less
Displacement 14.64 L (893.39 in³) 14.64 L (893.39 in³) Less
Aspiration Turbocharged Aftercooled Turbocharged Aftercooled Less
Compression Ratio 14.5:1 14.5:1 Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Lube System (refill) 34.1 L (36 qt) 34.1 L (36 qt) Less

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

Length 1660 mm (65.35 in) 1660 mm (65.35 in) Less
Width 906 mm (35.67 in) 906 mm (35.67 in) Less
Height 1335 mm (52.56 in) 1335 mm (52.56 in) Less
Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 1300 kg (2866 lb) 1300 kg (2866 lb) Less

Emissions

Non-certified rating. Available for global non-regulated areas.

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.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

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.

Quality

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including S•O•SSM 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

3406C Standard Equipment

Air Inlet System
  • Air cleaner. Regular duty, dry, panel type with service indicators, turbocharger, jacket water aftercooled.

Control System
  • Hydra-mechanical governor

Cooling System
  • Thermostats and housing
  • Jacket water pump, centrifugal

Exhaust System
  • Exhaust manifold, dry
  • Exhaust elbow, dry, 152 mm (6 in), 4 bolt flange

Flywheels and Flywheel Housing
  • SAE No. 1 flywheel
  • SAE No. 1 flywheel housing
  • SAE standard rotation

Fuel System
  • Fuel filter, LH
  • Fuel transfer pump
  • Fuel priming pump

Instrumentation
  • Instrument panel, LH
  • Engine oil pressure gauge
  • Fuel pressure gauge
  • Water temperature gauge
  • Service meter

Lube System
  • Crankcase breather
  • Oil cooler
  • Lube oil filter
  • Oil filler in valve cover and dipstick, both RH
  • Rear sump oil pan

Mounting System
  • Supports

General
  • Vibration damper
  • Lifting eyes
  • Paint: Cat yellow, with optional colors available at request

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