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Industrial

Cat® C3.4B Industrial Power Unit

  • Minimum Power
    74 bhp
  • Maximum Power
    74 HP
  • Maximum Power
    74 bhp
  • Maximum Torque
    234.5 lb-ft @ 1600 rpm
Power Rating
Minimum Power
74 bhp
Maximum Power
74 HP
Maximum Power
74 bhp
Maximum Torque
234.5 lb-ft @ 1600 rpm
Rated Speed
2200
Minimum Power
74 HP
Rated Speed
2200
Emission Standards
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage IIIB nonroad standards
Emissions
U.S. EPA Tier 4 Final
General
Engine Configuration
In-Line 4, 4-Stroke-Cycle Diesel
Engine Configuration
In-Line 4, 4-Stroke-Cycle Diesel
Bore
99 mm (3.9 in)
Bore
99 mm (3.9 in)
Bore
3.9 in
Stroke
4.3 in
Stroke
110 mm (4.3 in)
Stroke
110 mm (4.3 in)
Displacement
207.5 in³
Compression Ratio
17.0:1
Displacement
3.4 L (207.5 in³)
Displacement
3.4 L (207.5 in³)
Aspiration
Turbocharged
Aspiration
Turbocharged
Compression Ratio
17:1
Rotation from Flywheel End
Counterclockwise
Aftertreatment
DOC+SCR
Rotation
Counterclockwise
Power Unit Dimensions
Length
48.9 in
Width
27.7 in
Height
37.6 in
Weight
792 lb
Aftertreatment Dimensions
Length
20 in
Diameter
5.8 in
Power Unit Dimensions - Approximate
Length
1242 mm (48.9 in)
Width
705 mm (27.7 in)
Height
957 mm (37.6 in)
Weight
359 kg (791.5 lb)
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)
Diameter
149 mm (5.8 in)
Weight
509 mm (20 in)
Length
509 mm (20 in)
Aftertreatment Dimensions - Approximate
Diameter
149 mm (5.8 in)
Weight
509 mm (20 in)
Length
509 mm (20 in)
  • Air Inlet System
    • Standard air cleaners
  • Control System
    • Full electronic control system
    • Fully integrated, engine-mounted electronic control unit
    • Waterproof connectors and wiring looms
    • Flexible and configurable software features and J1939 standard communications I/O
  • Flywheels and Flywheel Housing
    • SAE3 configuration
  • Fuel System
    • Engine-mounted fuel filters
    • Electronic high pressure common rail fuel pump and injectors
  • Lube System
    • Lubricating oil filters and breathers
  • 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 IIIB Aftertreatment/Clean Emissions Control Equipment
    • Through Flow Diesel Particulate Filter (DPF)
    • Diesel Oxidation Catalyst (DOC)
    • Flex pipe connection kit with straight and 90° options for flexibility