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Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® 3406C Diesel Engine

The Cat® 3406C Industrial Diesel Engine is offered in ratings ranging from 298-347 bkW (400-465 bhp) @ 1800-2100 rpm and is 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.

  • Specification Summary

  • Maximum Power 347 kW
  • Maximum Torque 2172 Nm @ 1350 rpm
  • Rated Speed 1800-2100 rpm
  • Minimum Power 280 kW

Product Details

Power Rating

Maximum Power 347 kW
Maximum Torque 2172 Nm @ 1350 rpm
Rated Speed 1800-2100 rpm
Minimum Power 280 kW

Emission Standards

Emissions Non-Certified

General

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 137 mm
Stroke 165 mm
Displacement 14.6 l
Compression Ratio 14.5:1
Aspiration Turbocharged Aftercooled
Rotation from Flywheel End Counterclockwise
Aftertreatment -

Engine Dimensions - Approximate

Length 1660 mm
Width 906 mm
Height 1335 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1300 kg
  • Air Inlet System
    •  Air cleaner. Regular duty, dry, panel type with service indicators, turbocharger, jacket water aftercooled.
  • Control System
    •  Hydra-mechanical governor
  • 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
    • 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: Caterpillar yellow, with optional colors available at request

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