YC12VC2270-D31 Yuchai Diesel Engine
YC12VC Series · YC12VC系列
The YC12VC2270-D31 is a 12-cylinder V-12 diesel engine from Yuchai's YC12VC series, rated at 1520 kW prime power for generator-drive applications. With 79.17 L displacement and turbocharged, intercooled aspiration, it delivers reliable power for diesel gensets in the 1380–1850 kW range.
This is a generator-drive (G-drive) rating, not a truck rating: the block, the governor and the cooling package are set up to hold a steady speed under a steady load, which is what a 50 Hz or 60 Hz alternator needs. The electronic unit pump (eup) fuel system on this model is what keeps the frequency steady when a large motor starts across the line.
We couple it to our own TFW brushless alternator, mount it on a common base frame and run the finished set on our load bank to 110% before it is packed. If you are comparing an engine, compare the prime figure, the torque at the alternator's rated speed, and the after-sales cover for wear parts — the Yuchai vs Cummins vs Perkins comparison walks through that comparison.
Specifications
| Model | YC12VC2270-D31 |
|---|---|
| Series | YC12VC Series |
| Prime Power | 1520 kW |
| Standby Power (ESP) | 1670 kW |
| Cylinders | 12 · V-12 |
| Displacement | 79.17 L |
| Bore × Stroke | — |
| Aspiration | Turbocharged, Intercooled |
| Rated Speed | 1500 RPM |
| Fuel System | Electronic Unit Pump (EUP) |
| Emission Standard | Non-road T3 |
| Compression Ratio | — |
| Dry Weight | — |
| Dimensions | — |
| Oil Capacity | — |
| Cooling Type | Water-cooled |
| Start Method | Electric start |
| Rotation | CCW (facing power output end) |
Gensets Using This Engine
The YC12VC2270-D31 powers the following Yuchai diesel generator sets:
Recommended Spare Parts
Maintenance Intervals
Overhaul Interval
5000 hours
Frequently Asked Questions
What is the power rating of the YC12VC2270-D31 Yuchai engine?▼
1520 kW prime and 1670 kW standby (ESP) at 1500 rpm, from a 12-cylinder V-12 block of 79.17 L. Prime is the continuous duty figure; standby is for outage backup only. Both come from Yuchai's own rating table for this model, and we confirm which one your load needs before matching an alternator.
Which Zhiqiang generator sets use the YC12VC2270-D31 engine?▼
In the current catalogue the YC12VC2270-D31 powers TFW-1500 (1500 kW), TFW-1600 (1600 kW). Other ratings are built to order on the same block — send the load profile and we will size the set around this engine or the next size in the YC12VC family.
What emission standard does the YC12VC2270-D31 meet?▼
This engine is declared Non-road T3 under China GB 20891. The tier follows the model suffix: a -D2x engine is non-road T2, -D3x is non-road T3 and -D4x is non-road T4. The emission declaration and the engine test file are issued per order, so your customs broker or consultant can review them against the destination market before the set ships.
Get a technical quotation for your project
Send your load, country and frequency requirements — an engineer will confirm configuration, pricing and shipping.