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Caterpillar CM46DF Engine

The Caterpillar CM46DF is a 101.4 L 12-cylinder turbocharged and after-cooled engine, producing up to 10800 kW. It powers generator sets from Caterpillar, including the 12CM46DF and 16CM46DF.

Also known as: Caterpillar CM46DF

Part of the Caterpillar CM46 engine family — 12 variants share parts & fitment.

101.4 L
Displacement
12
Cylinders
10800 kW
Gross power

Engine specifications

Displacement101.4 L
Cylinders12
AspirationTurbocharged and after-cooled
Gross power10800 kW

Generator sets powered by this engine

2
Caterpillar 12CM46DFCaterpillar 16CM46DF

How to read your Caterpillar engine serial & model number →

Service specifications

9
TypeItemValueUnitCondition
OtherGross Input Torque (TH55-E70)12 667N•m (9350 lb-ft)
OtherGross Input Torque (TH55-E90)12 677N•m (9350 lb-ft)
OtherStall Torque Ratio (TH55-E70)2.23
OtherStall Torque Ratio (TH55-E90)2.23
PressureWS255 pump plunger load238,000lb (107,960 kg)
PressureWS273XD pump plunger load275,000lb (124 738 kg)
PressureWS305XD pump plunger load250,000lb (113 398 kg)
SpeedMaximum Input Speed (TH55-E70/TH55-E90 transmissions)1970rpm
SpeedRated Input Speed (TH55-E70/TH55-E90 transmissions)1900rpm

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the displacement of the Caterpillar CM46DF?

The Caterpillar CM46DF has a displacement of 101.4 liters with 12 cylinders.

Which generators use the Caterpillar CM46DF engine?

The Caterpillar CM46DF powers 2 generator set(s), including Caterpillar 12CM46DF, Caterpillar 16CM46DF.