C27

Emission Standards
Emissions	U.S. EPA Tier 2 Equivalent

General
Engine Configuration	V-12, 4-Stroke-Cycle Diesel
Bore	5.4 in / 137 mm
Stroke	6 in / 152 mm
Displacement	1649.5 in³ / 27.03 l
Compression Ratio	16.5:1
Aspiration	Turbocharged Aftercooled (TA)
Combustion System	Direct Injection
Rotation from Flywheel End	Counterclockwise
Aftertreatment	-

Engine Dimensions - Approximate
Length	75.5 in / 1917 mm
Width	57.6 in / 1464 mm
Height	51.9 in / 1319 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments	6495 lb / 2946 kg

Air Inlet System
- Twin Turbocharged Aftercooled
- Air-to-Air Aftercooled
Control System
- Electronic governing, PTO speed control
- Programmable ratings
- Automatic altitude compensation
- Power compensation for fuel temperature
- Programmable low and high idle and total engine limit
- Electronic diagnostics and fault logging
- Engine monitoring system SAE J1939 broadcast and control
- ADEM™ A4 Electronic Control Unit (ECU)
Cooling System
- Thermostats and housing, vertical outlet
- Jacket water pump, centrifugal
- Water pump, inlet
Exhaust System
- Exhaust manifold, dry
- Optional exhaust outlet
Flywheels and Flywheel Housing
- SAE No. 1 flywheel housing
Fuel System
- MEUI injection
- Fuel filter, secondary (2 micron)
- ACERT™ Technology
- Fuel transfer pump
- Fuel priming pump
Lube System
- Crankcase breather
- Oil cooler
- Oil filler
- Lube oil filter
- Front sump oil pan
- Oil dipstick
- Gear driven oil pump
General
- Vibration damper
- Lifting eyes
- Cold start capability to -20° C (-4° F)
- Paint: Caterpillar yellow, with optional colors available at request