Cat® C3.6 Industrial Diesel Engine for Tractors

Cat® C3.6 Industrial Diesel Engine for Tractors

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 90 kW (121 hp) @ 2400 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 UN ECE R96 Stage IIIA and Brazil MAR-1 emission standards.

  • Maximum Power 121 HP

  • Maximum Torque 369 lb-ft @ 1500 rpm

  • Emissions UN ECE R96 Stage IIIA, Brazil MAR-1

  • Rated Speed 2200-2400 rpm

Request a quote

Product Specifications


Power Rating

  • Maximum Power 121HP

  • Maximum Torque 369lb-ft @ 1500 rpm

  • Minimum Power 74HP

  • Rated Speed 2200-2400 rpm

Emission Standards

  • Emissions UN ECE R96 Stage IIIA, Brazil MAR-1

Engine Dimensions - Approximate

  • Height 33.7in

  • Length 26.8in

  • Weight - Net Dry - Basic Operating Engine Without Optional Attachments 840lb

  • Width 22.2in


  • Aftertreatment -

  • Aspiration Turbocharged Aftercooled (TA)

  • Bore 3.9in

  • Combustion System Direct Injection

  • Compression Ratio 17.0:1

  • Displacement 220in³

  • Engine Configuration Inline 4, 4-Stroke-Cycle Diesel

  • Rotation from Flywheel End Counterclockwise

  • Stroke 4.7in



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 degrees continuous in all directions

  • Cold start capability to -25° C (-13° F)

  • Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment