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Caterpillar G3412 TA Engine

The Caterpillar G3412 TA is a 27 L 12-cylinder turbocharged-aftercooled engine rated at 1800 rpm. It powers generator sets from Caterpillar, including the G3412 TA GAS ENGINE, LEHW3889-00, LEHW3889-01 and LEHW3890-00. It holds 140 L (37.0 gal) of coolant.

Also known as: Caterpillar G3412 TA

Part of the Caterpillar G3412 engine family — 2 variants share parts & fitment.

27.0 L
Displacement
12
Cylinders
1800 rpm
Rated speed

Engine specifications

Coolant capacity140.0 L
Displacement27.0 L
Cylinders12
AspirationTurbocharged-Aftercooled
Rated speed1800 rpm

Generator sets powered by this engine

6
Caterpillar G3412 TA GAS ENGINECaterpillar LEHW3889-00Caterpillar LEHW3889-01Caterpillar LEHW3890-00Caterpillar LEHW3890-01Caterpillar SR4B Generator Set

How to read your Caterpillar engine serial & model number →

Parts cataloged across the Caterpillar G3412 family

10
Part #DescriptionCategory
7C-1571Air PrimaryAir filter
108-3515GasketGasket
176-7748GasketGasket
1R-0716Engine OilOil filter
256-0326Oxidation Catalyst Assembly - RoundService part / kit
256-0328Oxidation Catalyst Assembly - RoundService part / kit
LEXW2610NEW CYLINDER HEAD DESIGNService part / kit
104-3170Spark PlugSpark plug
2N-2839Spark Plug - Fine wire plugSpark plug
4W-2256Spark Plug - Fine wire plugSpark plug

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

What is the displacement of the Caterpillar G3412 TA?

The Caterpillar G3412 TA has a displacement of 27.0 liters with 12 cylinders.

Which generators use the Caterpillar G3412 TA engine?

The Caterpillar G3412 TA powers 6 generator set(s), including Caterpillar G3412 TA GAS ENGINE, Caterpillar LEHW3889-00, Caterpillar LEHW3889-01, Caterpillar LEHW3890-00, Caterpillar LEHW3890-01.