Caterpillar 3412C TA V-12 Engine Engine
The Caterpillar 3412C TA V-12 is a 27.02 L 12-cylinder ta engine rated at 1500 rpm. It powers generator sets from Caterpillar, including the SR4B. It holds 139 L (36.7 gal) of oil and 59 L (15.6 gal) of coolant.
Also known as: CAT 3412C TA V-12
Part of the Caterpillar 3412C engine family — 3 variants share parts & fitment.
Engine specifications
| Oil capacity | 139.0 L |
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| Coolant capacity | 59.0 L |
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| Displacement | 27.02 L |
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| Cylinders | 12 |
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| Aspiration | TA |
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| Rated speed | 1500 rpm |
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Generator sets powered by this engine
1Common problems
15- When the engine oil pressure is increased beyond the low oil pressure setpoint, the GSC will inform the governor that the engine speed should be increased from IDLE to RATED rpm. 2301A Control
- The GSC+ detects an alarm fault
Fix: Fault alarm indicator (26) is accompanied by an alarm fault code that is shown on the upper display (29) when the alarm codes key (30) is pressed. - The GSC+ detects a shutdown fault
Fix: The engine will shut down if the engine is running. The engine will not be allowed to start. - The fault alarm indicator (3) flashes when the GSC detects an alarm fault. g00604607
- Overcrank
Cause: Engine does not start within the setpoint for overcrank. - Low oil pressure indicator flashes, and the engine is shut down.
Cause: The engine oil pressure drops below the setpoints for low oil pressure shutdown that are programmed into the GSC. There are two low oil pressure setpoints. One setpoint is used when the engine is at idle speed. The other setpoint is used when the engine is at rated speed. - Low oil pressure
Cause: Engine oil pressure drops below the setpoints for low oil pressure shutdown that are programmed into the GSC+.
Fix: The tow oil pressure indicator FLASHES, and the engine is shut down. The engine is not allowed to start until the fault is corrected. - High water temperature indicator flashes, and the engine is shut down.
Cause: The engine coolant temperature rises above the setpoint for high water temperature shutdown that is programmed into the GSC. - High water temperature
Cause: Engine coolant temperature rises above the setpoint for high water temperature shutdown that is programmed into the GSC+.
Fix: The engine is shutdown and the engine is not allowed to start until the fault is corrected. - Generator parameters are not matched to the bus
Fix: If the generator and bus voltages, frequencies and phases are in sync, the lamps will light continuously. If not, the associated lamp will flash. - Fault shutdown 21
- Fault alarm 22
- Engine overspeed indicator flashes, and the engine is shut down.
Cause: The engine speed exceeds a certain threshold set in the GSC+.
Fix: Correct the condition by addressing any issues that caused the engine to overspeed. - Engine overspeed
Cause: Engine speed exceeds the setpoint for engine overspeed that is programmed into the GSC+.
Fix: The engine is shutdown and the engine is not allowed to start until the fault is corrected. - Engine overcrank indicator flashes, and the engine is shut down.
Cause: The engine has been cranked for an extended period without starting.
Fix: Correct the condition by ensuring proper start-up procedures are followed.
Compiled from service & troubleshooting documentation across every generator set that uses the Caterpillar 3412C TA V-12.
Parts cataloged across the Caterpillar 3412C family
13| Part # | Description | Category |
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| 3412C | Engine | engine |
| 8N1728 | Connecting rod | other_service |
| g00104545 | Illustration 4 | other_service |
| g00107406 | Illustration 1: Safety message for the clutch located on the clutch housing (if equipped). | other_service |
| g00107407 | Illustration 2: Safety message for rotating gears that can cause entanglement of the fingers and hands. | other_service |
| g00294510 | Improper jumper cable connections can cause an explosion resulting in personal injury. | other_service |
| i01359666 | Crushing Prevention and Cutting Prevention | other_service |
| i01372247 | Mounting and Dismounting | other_service |
| i01372262 | Illustration 4: Safety message for flammable fluids and hot surfaces. | other_service |
| i01480768 | Burn Prevention | other_service |
| i01658146 | Important Safety Information | other_service |
| i01805780 | Before Starting Engine | other_service |
| i02345910 | Do not allow unauthorized personnel on the engine or around the engine when the engine is serviced. | other_service |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Also used in
5- Caterpillar 992C — Loader Wheeled
- Caterpillar 992D — Loader Wheeled
- Caterpillar D10N — Tractor Tracked
- Caterpillar D9L — Tractor Tracked
- Manitowoc 4599 SERIES 4 — Dragline
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
Common questions
What is the oil capacity of the Caterpillar 3412C TA V-12?
The Caterpillar 3412C TA V-12 engine has an oil capacity of 139.0 liters.
What is the displacement of the Caterpillar 3412C TA V-12?
The Caterpillar 3412C TA V-12 has a displacement of 27.02 liters with 12 cylinders.
Which generators use the Caterpillar 3412C TA V-12 engine?
The Caterpillar 3412C TA V-12 powers 1 generator set(s), including Caterpillar SR4B.
What is a common problem with the Caterpillar 3412C TA V-12 engine?
A commonly reported issue on generators using the Caterpillar 3412C TA V-12 is: When the engine oil pressure is increased beyond the low oil pressure setpoint, the GSC will inform the governor that the engine speed should be increased from IDLE to RATED rpm..