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El Motor Diesel Industrial C3.4 se ofrece en las siguientes clasificaciones: 47 y 55 bkW (63 y 73,7 bhp) a 2.500 rpm. Estas clasificaciones cumplen con los estándares de emisiones Tier 4 Interim de la EPA de EE.UU. y Stage IIIA de la Unión Europea.

Power Rating

Minimum Power 63.0 bhp 47.0 bkW Less
Maximum Power 73.7 bhp 55.0 bkW Less
Frequency 2500 rpm 2500 rpm Less

Emission Standards

Emissions U.S. EPA Tier 4 Interim, EU Stage IIIA U.S. EPA Tier 4 Interim, EU Stage IIIA Less


Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel Less
Bore 94 mm (3.7 in) 94 mm (3.7 in) Less
Stroke 120 mm (4.72 in) 120 mm (4.72 in) Less
Displacement 3.3 L (201 in³) 3.3 L (201 in³) Less
Aspiration Naturally Aspirated (NA) or Turbocharged (T) Naturally Aspirated (NA) or Turbocharged (T) Less
Compression Ratio 19.5:1 (NA), 22.0:1 (T) 19.5:1 (NA), 22.0:1 (T) Less
Combustion System Indirect Injection (NA), Direct Injection (T) Indirect Injection (NA), Direct Injection (T) Less
Rotation (from flywheel end) Counterclockwise Counterclockwise Less
Cooling System Capacity 5-5.5 L (5.3-5.8 qt) 5-5.5 L (5.3-5.8 qt) Less
Lube System (refill) 9 L (9.5 qt) 9 L (9.5 qt) Less

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

Length 781-784 mm (30.7-30.9 in) 781-784 mm (30.7-30.9 in) Less
Width 590-649 mm (23.2-25.5 in) 590-649 mm (23.2-25.5 in) Less
Height 722-821.3 mm (28.4-32.3 in) 722-821.3 mm (28.4-32.3 in) Less
Weight - Net Dry (Basic Operating Engine Without Optional Attachments) 245-265 kg (540-584 lb) 245-265 kg (540-584 lb) Less


Meets U.S. EPA Tier 4 Interim, EU Stage IIIA emission standards.

Reliable, Quiet and Durable Power

World-class manufacturing capability and processescoupled with proven core engine designs assurereliability, quiet operation, and many hours ofproductive life.

High Performance

With maximum torque levels maintained, this engine provides class-leading power take-off capability.

Broad Application Range

Industry leading range of factory configurable ratingsand options for agricultural, material handling,construction, mining, aircraft ground support, and otherindustrial applications.

Low Cost Maintenance

Single-side servicing improves ease of maintenance and simplifies the servicing routine. Standard 500 hour service intervals.


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

  • Mantenimiento programado, incluida una muestra S•O•SSM< /li>
  • Convenios de respaldo al cliente (CSA, Customer Support Agreements)< /li>
  • Cobertura de servicio extendido (ESC, Extended Service Coverage) Caterpillar
  • Red de servicio superior del distribuidor
  • Red de servicio extendido del distribuidor a través del programaDistribuidor de servicio industrial (ISD, Industrial Service Distributor) Cat

C3.4 Equipos estándar

Air Inlet System
  • Inlet manifold with choice of inlets.

Control System
  • Alternator 12 volt
  • Starter motor 12 volt
  • Glow plug starting aid

Cooling System
  • Belt-driven coolant pump
  • Choice of cooling fans

Flywheels and Flywheel Housing
  • SAE No. 8 or SAE No. 10 flywheel
  • SAE No. 4 flywheel housing

Fuel System
  • Electronic Shut-off Solenoid (ESOS)

Lube System
  • Lube oil pressure switch
  • Two oil fill positions, front and top cover

  • Cast iron, engine block
  • Cast iron exhaust manifold--side outlet
  • Cold start capability to -20° C (-4° F)
  • Closed circuit breather
  • Paint: Cat yellow, with optional colors available at request

Cat® Dealer Service

Buy any piece of Cat® equipment and also get the full support and commitment of your local Cat Dealer.

Contact your local dealer