The Caterpillar G3412C LE is a 27 L turbocharged-aftercooled engine rated at 1500 rpm, producing up to 475 kW. It powers generator sets from Caterpillar, including the DM5450. It holds 170.3 L (45.0 gal) of oil and 54.9 L (14.5 gal) of coolant.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | Air cleaner — single element with service indicator, Air inlet adapter, Precleaner, Air cleaner rain cap | | — | | |
| Fuel filter | Fuel filter | | — | | |
| Oil filter | Oil filter — RH | | — | | |
| Battery | Battery chargers, Charging alternators, Ammeter gauge, Ammeter gauge and wiring, Control mounting | | — | | |
| Belt | Crankshaft vibration damper and pulleys, Lifting eyes | | — | | |
| Coolant | Thermostats and housing, Jacket water pump, Aftercooler water pump, Aftercooler core | 54.9 L | — | | |
| Oil | Crankcase breather — top mounted, Oil cooler, Oil filter — RH, Oil pan — deep sump, Oil filler — RH in valve cover and RH dipstick | 170.3 L | — | 750 hr | |
| Spark plug | Cat Electronic Ignition System (EIS) with detonation sensitive timing | | — | | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Parts cataloged across the Caterpillar G3412C family
4| Part # | Description | Category |
|---|
| 1W-3637 | Air Primary | Air filter |
| 108-3515 | Gasket | Gasket |
| 104-3170 | Spark Plug | Spark plug |
| 128-6238 | Spark Plug | Spark 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 oil capacity of the Caterpillar G3412C LE?
The Caterpillar G3412C LE engine has an oil capacity of 170.3 liters.
What is the displacement of the Caterpillar G3412C LE?
The Caterpillar G3412C LE has a displacement of 27.0 liters.
Which generators use the Caterpillar G3412C LE engine?
The Caterpillar G3412C LE powers 2 generator set(s), including Caterpillar DM5450, Caterpillar G3412C LE.
How often should you change the oil in the Caterpillar G3412C LE?
The Caterpillar G3412C LE oil change interval is every 750 hours.