3406C LRC

Industrial Diesel Engines 3406C

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Key Specs

Maximum Power
465 HP
347 kW
Maximum Torque
1602 lb-ft @ 1350 rpm
2172 Nm @ 1350 rpm


For your largest power needs in any environment, Cat?� 3406C Industrial Diesel Engines offer the unsurpassed performance and durability your customers need to keep their industrial applications and operations running. They deliver high power output, proven reliability and excellent fuel efficiency. These engines maintain low operating costs to keep your customers profitable for years to come. 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.

Product Specifications for 3406C

Maximum Power 465 HP 347 kW
Maximum Torque 1602 lb-ft @ 1350 rpm 2172 Nm @ 1350 rpm
Rated Speed 1800-2100 rpm 1800-2100 rpm
Minimum Power 375 HP 280 kW
Emissions Non-Certified Non-Certified
Engine Configuration Inline 6, 4-Stroke-Cycle Diesel Inline 6, 4-Stroke-Cycle Diesel
Bore 5.4 in 137 mm
Stroke 6.5 in 165 mm
Displacement 893.4 in³ 14.6 l
Compression Ratio 14.5:1 14.5:1
Aspiration Turbocharged Aftercooled Turbocharged Aftercooled
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment - -
Length 65.4 in 1660 mm
Width 35.7 in 906 mm
Height 52.6 in 1335 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 2866 lb 1300 kg

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


  • 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


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

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3406C LRC

3406C LRC Diesel Engines - Lesser Regulated & Non-Regulated

3406C LRC
3406C LRC Diesel Engines - Lesser Regulated & Non-Regulated

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