C3.6
Cat® C3.6 Diesel Engine
DESCRIPTION
The Cat® C3.6 packs big engine capability into a compact package, delivering up to 129 kW (173 hp) of power and 740 Nm (546 lb ft) of torque. Engineered to meet global emissions standards, it integrates seamlessly into your machine. With extended service intervals, flexible fuel options, and the proven durability expected from Cat engines, the C3.6 is built to keep your machines running strong, day after day.Big Engine Performance
A compact design that delivers big‑engine performance without giving up valuable space. Ideal for tight installations, it brings flexibility across machine platforms while reducing weight and complexity—giving you more usable power in a smaller footprint.
Strong, Consistent Output
With up to 129 kW (173 hp) of power and 740 Nm (546 lb ft) of torque, the engine delivers strong, consistent output with optimized fuel use. The engine‑mounted aftertreatment keeps customers installations simple while maintaining the high performance and efficiency needed for demanding work.
Long-Term Value
Service intervals of up to 1,000 hours help cut downtime and reduce operating costs. Customizable options and easy integration across platforms provide the versatility and long‑term value customers expect from Cat.
Reliable, Sustainable Performance
Built on the proven C3.6 platform, this engine is designed to perform in extreme cold, high altitudes, and tough operating conditions. Compatible with B20 biodiesel and HVO fuels, it delivers reliable, sustainable performance—without compromise.
- Specs
- Docs
Specs
Overview
Power Rating
Emission Standards
General
Engine Dimensions*
Disclaimer
General
SEE HOW C3.6 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 173 hp / 129 kW
- Maximum Torque
- 546 lb-ft @ 1500 rpm / 740 Nm @ 1500 rpm
- Rated Speed
- 2200 rpm
- Minimum Power
- 173 hp / 129 kW
- Emissions
- U.S. EPA Tier 4 Final, EU Stage V
- Displacement
- 221 in³ / 3.6 l
- Aspiration
- Twin turbocharged-aftercooled (TTA)
- Bore
- 3.9 in / 98 mm
- Stroke
- 3.9 in / 98 mm
- Combustion System
- Direct injection
- Compression Ratio
- 17.0:1
- Aftertreatment
- DOC+DPF+SCR
- Rotation from Flywheel End
- Anti-clockwise
- Length
- 33.5 in / 850 mm
- Width
- 26.8 in / 680 mm
- Height
- 41.8 in / 1060 mm
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 74 hp / 55 kW
- Maximum Torque
- 199 lb-ft @ 1600 rpm / 270 Nm @ 1600 rpm
- Rated Speed
- 2800 rpm
- Minimum Power
- 60 hp / 45 kW
- Emissions
- China Nonroad Stage IV
- Displacement
- 135 in³ / 2.2 l
- Aspiration
- Turbocharged (T) or Turbocharged-Aftercooled (TA)
- Bore
- 3.3 in / 84 mm
- Stroke
- 3.9 in / 100 mm
- Combustion System
- Direct Injection
- Compression Ratio
- 17.0:1
- Aftertreatment
- DOC+DPF
- Rotation from Flywheel End
- Counterclockwise
- Length
- 16.1 in / 408 mm
- Width
- 20.8 in / 529 mm
- Height
- 30.2 in / 766 mm
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 110 hp / 82 kW
- Maximum Torque
- 331.7 lb-ft @ 1500 rpm / 450 Nm @ 1500 rpm
- Rated Speed
- 2200 rpm
- Minimum Power
- 100 hp / 74.4 kW
- Emissions
- China Nonroad Stage IV
- Displacement
- 221 in³ / 3.6 l
- Aspiration
- Turbocharged-Aftercooled (TA)
- Bore
- 3.9 in / 98 mm
- Stroke
- 4.7 in / 120 mm
- Combustion System
- Direct Injection
- Compression Ratio
- 17.0:1
- Aftertreatment
- DOC+DPF or DOC+DPF+SCR
- Rotation from Flywheel End
- Counterclockwise
- Length
- 26.3 in / 667 mm
- Width
- 22.2 in / 564 mm
- Height
- 31 in / 787 mm