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.
SPECIFICATIONS
Minimum Power63 bkW
Maximum Power90.0 bkW
Rated Speed2200
power rating
Minimum Power63 bkW
Maximum Power90.0 bkW
Rated Speed2200
2500 rpm
Emission StandardsEmissions
us epa tier 4 final eu stage iv nonroad emission standards us epa tier 4 interim equivalent and eu stage iiib equivalent ratings available using epa or eu flex provisions
GeneralEngine Configuration
inline 4 4strokecycle diesel
GeneralBore
99 mm 39 in
GeneralStroke
110 mm 43 in
GeneralDisplacement
34 l 2075 in³
GeneralAspiration
turbochargedaftercooled ta
GeneralCompression Ratio
171
GeneralCombustion System
direct injection
GeneralRotation (from flywheel end)
counterclockwise
GeneralCooling System Capacity
6 l 63 qt
Engine Dimensions (Approximate. Final dimensions dependent on selected options)Length
610 mm 24 in
Engine Dimensions (Approximate. Final dimensions dependent on selected options)Width
623 mm 245 in
Engine Dimensions (Approximate. Final dimensions dependent on selected options)Height
8055 mm 317 in
Engine Dimensions (Approximate. Final dimensions dependent on selected options)Dry Weight (Basic Operating Engine Without Optional Attachments)
270 kg 5952 lbs
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)DOC Length
320 mm 126 in
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)DOC Weight
15 kg 33 lb
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)DOC Diameter
196 mm 77 in
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)SCR Weight
20 kg 44 lb
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)SCR Diameter
251 mm 988 in
Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)SCR Length
520 mm 2047 in
C3.4B, Greater than 56 kW (75 hp) 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 - us epa tier 4 final eu stage iv aftertreatment clean emissions control equipment
Diesel Oxidation Catalyst (DOC)
Selective Catalytic Reduction (SCR)
SCR Auxiliaries