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In the 47-205 bkW (63-274.9 bhp) power range, Cat engines offer the perfect balance of durability, fuel efficiency and low emissions.  Extensively tested on the job, these engines use a range of mechanical or Cat Common Rail fuel systems and advanced control systems to deliver maximum uptime in the harshest environment. Tier 4 Interim/Stage IIIB engines offer single or series Smart Wastegate Turbocharging. They have proven they can handle the toughest applications and deliver superior performance that exceeds the expectations of the most demanding users.

Applications powered by Cat® Industrial Engines include:

  • Agriculture Tractors, Combines and Harvesters
  • Aircraft Ground Support
  • Bore/Drill Rigs
  • Chippers & Grinders
  • Compactors & Rollers
  • Compressors
  • Construction
  • Irrigation and Pumps
  • Turf and Landscaping
  • Mobile Earthmoving
  • Trenchers
  • Underground Mining
  • Material Handling 

Below are ratings or spec sheets for Cat engines in the 47-205 bkW (63-274.9 bhp) power range. Information below about Emissions describes the particular rating’s emissions technology. For more information about emissions certification, please contact your local Cat dealer.

   C3.4
   
Naturally Aspirated (NA), Turbocharged (T)
Model (Aspiration)
bkW (bhp) @ rpm
Emissions
» • C3.4 (NA)47 bkW (63 bhp) @ 2500EPA Tier 4 Interim
EU Stage IIIA
» • C3.4 (T)55 bkW (73.7 bhp) @ 2500EPA Tier 4 Interim
EU Stage IIIA
» • C3.4 (T)62 bkW (83 bhp) @ 2500EPA Tier 3
EU Stage IIIA
   C3.4B
   
Turbocharged (T), Turbo Aftercooled (TA)
Model (Aspiration)
bkW (bhp) @ rpm
Emissions
» • C3.4B (T)45-55.4 (60.3-74.3) @ 2200-2500 EPA Tier 4 Final
EU Stage IIIB
» • C3.4B (TA)62-86 bkW (83.1-115.3 bhp) @ 2200-2500C3.4B
EPA Tier 4 Interim
EU Stage IIIB
   C4.4
   
Naturally Aspirated (NA), Turbocharged (T), Turbo Aftercooled (TA)
Model (Aspiration)
bkW (bhp) @ rpm
Emissions
» • C4.4 (NA)54-56 bkW (72-75 bhp) @ 2200EU Stage IIIA
» • C4.4 (T)55.5-74.5 bkW (75-99.9 bhp) @ 2200-2400EPA Tier 3
EU Stage IIIA
» • C4.4 (TA)74.5-83 bkW (99.9-111.3 bhp) @ 2200-2400 EPA Tier 3
EU Stage IIIA
   C4.4 ACERT
   
Turbocharged (T), Turbo Aftercooled (TA)
Model (Aspiration)
bkW (bhp) @ rpm
Emissions
» • C4.4 ACERT (TA, TTA)61.5-129.4 bkW (82.5-173.5 bhp) @ 2200EPA Tier 4 Interim
EU Stage IIIB
» • C4.4 ACERT (T)61.5-74.5 bkW (82.5-99.9 bhp) @ 2200EPA Tier 3
EU Stage IIIA
» • C4.4 ACERT (TA, TTA)70-129.4 bkW (93.9-173.5 bhp) @ 2200EPA Tier 4 Final
EU Stage IV
» • C4.4 ACERT (TA)74.5-106 bkW (99.5-142 bhp) @ 2200EPA Tier 3
EU Stage IIIA
   C6.6 ACERT
   
Turbocharged (T), Turbo Aftercooled (TA)
Model (Aspiration)
bkW (bhp) @ rpm
Emissions
» • C6.6 ACERT (TA)89-129.4 bkW (119.3-173.5 bhp) @ 2200EPA Tier 4 Interim
EU Stage IIIB
» • C6.6 ACERT (TA)89-205 bkW (119-275 bhp) @ 2200-2500EPA Tier 3
EU Stage IIIA
 

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The Cat equipment product line, consists of more than 300 products for the construction and mining equipment, diesel and natural gas engines, industrial gas turbines, and has a wide offering of related services.

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