Cat® C3.4B Diesel Engine

C3.4B Tier 4 Diesel Engines - Highly Regulated

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 45-55.4 bkW (60-74.3 bhp) @ 2200-2500 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IIIB 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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Product Specs

Power Rating

Minimum Power
60.3BHP
Maximum Power
74.3BHP
Rated Speed
2200 & 2500 rpm

Emission Standards

Emissions
U.S. EPA Tier 4 Final, EU Stage IIIB Nonroad Emission Standards

General

Aspiration
Turbocharged (T)
Compression Ratio
17:1
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise
Engine Configuration
In-Line 4, 4-Stroke-Cycle Diesel
Stroke
110 mm (4.3 in)
Cooling System - Capacity
6 L (6.3 qt)
Bore
99 mm (3.9 in)
Displacement
3.4 L (207.5 in³)

Engine Dimensions - Approximate

Weight - Net Dry - Basic Operating Engine Without Optional Attachments
251 kg (553.4 lb)
Length
610 mm (24 in)
Width
653 mm (25.7 in)
Height
829.5 mm (32.6 in)

Aftertreatment Dimensions - Approximate

Diameter
Wall-Flow: 180 mm (7.1 in). Through Flow: 149 mm (5.8 in)
Weight
Wall Flow: 20 kg (44 lb). Through Flow: 14 kg (30.8 lb)
Length
Wall Flow: 541 mm (21.3 in). Through Flow: 509 mm (20 in)

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 Iiib Aftertreatment/clean Emissions Control Equipment
    • Diesel Particulate Filter (DPF)
    • Diesel Oxidation Catalyst (DOC)
    • Flex pipe connection kit with straight and 90° options for flexibility

Optional Equipment

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