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Maximum Power134 HP (100 kW)
Maximum Torque391 lb-ft @ 1500 rpm (530 Nm @ 1500 rpm)
EmissionsU.S. EPA & CARB Tier 4 Final, EU Stage V
Rated Speed2000-2400 rpm
The Cat® C3.6 agricultural tractor engine offers the perfect balance of compact size, reliability, and performance. This engine is offered in ratings ranging up to 100 kW (134 hp) @ 2200 rpm.

The C3.6 is designed to meet the specific requirements of agricultural tractors including structural sump with integral twin balancer shafts.

The C3.6 meets EU Stage V, U.S. EPA Tier 4 Final, and Japan 2014 emission standards.


Maximum Power134 HP (100 kW)
Maximum Torque391 lb-ft @ 1500 rpm (530 Nm @ 1500 rpm)
EmissionsU.S. EPA & CARB Tier 4 Final, EU Stage V
Rated Speed2000-2400 rpm
Minimum Power74 HP (55 kW)
Engine ConfigurationIn-Line 4
Bore3.9 in (98 mm)
Stroke4.7 in (120 mm)
Displacement220 in³ (3.6 l)
Compression Ratio17.0:1
AspirationTurbocharged-Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
AftertreatmentDOC+DPF or DOC+DPF+SCR
Length26.8 in (667 mm)
Width22.2 in (564 mm)
Height33.7 in (855 mm)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments840 lb (381 kg)

Benefits and Features

Meets U.S. EPA Tier 4 Final, EU Stage V and Japan 2014 emission standards.

World-class manufacturing capability and processes coupled with proven technologies and extensive field validation assure reliability and durability in tough nonroad applications.

Leading edge fuel systems and turbocharging provide high torque even at lower engine speeds.

Fuel consumption optimized to match the measured operating cycles of agricultural tractors.

U.S. EPA Tier 4 Final, and EU Stage V engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 10 ppm sulfur (EU) and 15 ppm sulfur (U.S.), and new oil formulations to support the new technology. Your Cat dealer can provide more information regarding fuel and oil.

Industry-leading range of factory configurable ratings and options to enable a solution for your machine.

Worldwide service delivers ease of maintenance and simplifies the servicing routine. Capable of optimal oil change intervals of 500 hours. The S•O•S℠ program is available from your Cat dealer to determine oil change intervals and provide optimal performance.

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

  • Scheduled maintenance, including SOS℠ sample
  • Customer Support Agreements (CSA)
  • Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Technology – The DOC, DPF and SCR technology provides customers with a solution which meets the emissions standards while providing optimal fuel consumption and transient response. For power ratings below 56 bkW (75 bhp), the SCR is not required. Mounting – On engine aftertreatment offered for best value and simplest OEM design and manufacturing processes. Remote mount alternatives are also available.

Standard Equipment

  • Starter motor (12V)
  • Alternator (12V)
  • Electronic Control Unit (chassis mounted)
  • Engine control sensors and robust wiring harness
  • Data interface via CANbus SAE J1939
  • Agricultural back plate for transmission mounting
  • Choice of flywheel to match industry common hydraulic pumps and transmissions
  • Side PTO with SAE A or SAE B interface
  • Fuel filter – chassis mounted
  • With water sensor
  • Lubricating oil filters
  • High incline oil pan – 25° continuous in all directions
  • Cold start capability to -25° C (-13° F) with standard equipment
  • Paint: Caterpillar yellow, with optional colors available at request
  • Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF)
  • Selective Catalytic Reduction (SCR) (not required <56 kW)