Yanmar YTG15T
Series: YTG Series
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Yanmar YTG Series – industrial generator-set engines of the register: from YTG5.0S to YTG15T, diesels from Yanmar's Japanese engine production
The Yanmar YTG Series brings together on this collective page seven diesel engines for generator sets: YTG10S, YTG12.5T, YTG15T, YTG5.0S, YTG6.5S, YTG6.5T and YTG9.0T. Yanmar was founded in 1912 in Osaka and builds its diesel engines partly at its plant by Lake Biwa in Shiga Prefecture; the YTG range is designed specifically to drive generators, while other Yanmar ranges are intended for agricultural machinery, construction equipment or marine propulsion.
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The register lists here 7 versions: YTG10S, YTG12.5T, YTG15T, YTG5.0S, YTG6.5S, YTG6.5T and YTG9.0T. Engine output ranges from 8.5 to 19 hp (continuous to rated) at displacements of 493 to 1,007 cm³ and rated speeds of 3,000 or 3,600 rpm; set apparent power lies between 5 and 15 kVA (prime power 5 to 12 kW) at 220 V or 220/380 V and 50/60 Hz, dry weight ranges from 170 to 388 kg, cooling is via a water radiator.
Diesel-powered generator sets built on compact industrial engines like the YTG range serve as backup power for buildings, building sites and ships, as well as a self-sufficient power source in areas without a continuous grid; alongside makers such as Kubota and Isuzu, Yanmar ranks among the established Japanese suppliers of such generator engines.
When buying used, what counts on these generator engines is operating hours, the condition of the injection pump and cooling system, and the condition of the attached generator end, since engine and generator are usually traded as one unit; corrosion on the fuel tank and exhaust system is a common weak point on stationary-operated sets. Spare parts run through Yanmar's industrial engine distribution.
Sources: SpecCodex register, model data: Yanmar YTG Series, Yanmar (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 19 hpcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Dry weight | 388 kgcorrect |
|---|
Other data
| Apparent power | 15correct |
|---|---|
| Dimensions | 1444 x 650 x 764correct |
| Displacement | 1,007 lcorrect |
| Frequency | 50/60correct |
| Fuel tank capacity | 13.7 lcorrect |
| Phases | threecorrect |
| Prime power | 12correct |
| Speed | 3000 (50Hz) / 3600 (60Hz)correct |
| Voltage | 220/380correct |
Frequently asked questions
How much power does the Yanmar YTG15T have?
The Yanmar YTG15T delivers 19 hp.
What to check before buying
- Match the data plate against the order: frame size, mounting and rating have to agree.
- For used units, ask about winding condition and bearing play.
- Ask about parts availability for this series — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 13 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: [1]
Diesel engine in 3D section
Turn the model, look inside and click an assembly — each one is explained.