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Cat® C3.4B Diesel Engine

Cat® C3.4B Industrial Diesel Engines offer the perfect balance of durability, fuel efficiency and low emissions. The C3.4B Industrial Engine is offered in ratings ranging from 63-90 bkW (84.5-120.7 bhp) @ 2200-2500 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. Industries and applications powered by C3.4B engines include: Agriculture, Aerial Lifts, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Compressors, Construction, Forestry, General Industrial, Irrigation Equipment, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Light Towers, Mobile Sweepers, Paving Equipment, Pumps, Specialty Ag Equipment, Trenchers, Turf and Landscaping and Underground Mining Equipment.

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SPECIFICATION SUMMARY
  • Engine Configuration In-Line 4, 4-Stroke-Cycle Diesel
  • Cooling System Capacity 6 L (6.3 qt)
  • DOC Length 320 mm (12.6 in)
  • DOC Weight 15 kg (33 lb)

PRICE (USD)
Call 440-838-7348 for rate information

General

  • Engine Configuration
    In-Line 4, 4-Stroke-Cycle Diesel
  • Cooling System Capacity
    6 L (6.3 qt)
  • Bore
    3.9 in
  • Stroke
    4.3 in
  • Displacement
    207.5 in³
  • Aspiration
    Turbocharged-Aftercooled (TA)
  • Compression Ratio
    17:01
  • Combustion System
    Direct Injection
  • Rotation from Flywheel End
    Counterclockwise
  • Engine Configuration
    In-Line 4, 4-Stroke-Cycle Diesel
  • Bore
    99 mm (3.9 in)
  • Stroke
    110 mm (4.3 in)
  • Displacement
    3.4 L (207.5 in³)
  • Cooling System - Capacity
    6 L (6.3 qt)

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

  • DOC Length
    320 mm (12.6 in)
  • DOC Weight
    15 kg (33 lb)
  • DOC Diameter
    196 mm (7.7 in)
  • SCR Weight
    20 kg (44 lb)
  • SCR Diameter
    251 mm (9.88 in)

Power Rating

  • Minimum Power
    84.5 HP
  • Maximum Power
    121 HP
  • Rated Speed
    2200 & 2500 rpm

Emission Standards

  • Emissions
    U.S. EPA Tier 4 Final

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

  • Length
    610 mm (24 in)
  • Width
    623 mm (24.5 in)
  • Height
    805.5 mm (31.7 in)

Engine Dimensions - Approximate

  • Dry Weight - Basic Operating Engine Without Optional Attachments
    270 kg (595.2 lbs)
  • Height
    805.5 mm (31.7 in)
  • Length
    610 mm (24 in)
  • Width
    623 mm (24.5 in)
  • Length
    24 in
  • Width
    24.5 in
  • Height
    31.7 in
  • Weight - Net Dry - Basic Operating Engine Without Optional Attachments
    595 lb

Aftertreatment Dimensions - Approximate

  • SCR Length
    520 mm (20.47 in)
  • SCR Weight
    20 kg (44 lb)
  • DOC Diameter
    196 mm (7.7 in)
  • DOC Length
    320 mm (12.6 in)
  • DOC Weight
    15 kg (33 lb)
  • SCR Diameter
    251 mm (9.88 in)

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.

High Performance

Leading-edge technology provides significant improvements in power, torque, fuel consumption and response. Technology includes single smart wastegated turbo systems, durable high pressure common rail technology, and closed circuit breathing system.

Fuel Efficiency

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

Fuel & Oil

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

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.

Standard Equipment:

  • Air Inlet System
    • Induction manifolds
    • Exhaust manifolds
  • Control System
    • Starter motor
    • Alternator
    • Electronic Control Unit
    • Sensors for: engine speed, oil pressure, and coolant temperature
  • Cooling System
    • Cooling packs
  • Flywheels And Flywheel Housing
    • Flywheel housings
    • Flywheel and starter rings
  • Fuel System
    • Fuel filter positions
    • Common rail fuel pump and injectors
  • Lube System
    • Lubricating oil filters
  • General
    • Cold start capability to -20° C (-4° F)
    • Paint: Caterpillar yellow, with optional colors available at request
  • U.s. Epa Tier 4 Final, Eu Stage Iv Aftertreatment/ Clean Emissions Control Equipment
    • Diesel Oxidation Catalyst (DOC)
    • Selective Catalytic Reduction (SCR)
    • SCR Auxiliaries

Optional Equipment:

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