Yanmar YEG170DTLC/DTLS – specifications
Series: YEG Series
Build year not documented · Data origin: Manufacturer information · sources
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The YEG170DTLC/DTLS is an industrial diesel engine from Yanmar’s YEG series, a long‑standing Japanese manufacturer of diesel and motor solutions. It belongs to the industrial engines group and is listed as a standalone generator drive motor. The unit is designed for operation on 50 Hz or 60 Hz mains frequency and uses a three‑phase power supply. Cooling is provided by water, ensuring stable temperature control during continuous operation.
The engine delivers a prime (continuous) power of 12.6 kW at 50 Hz and 15.2 kW at 60 Hz, sufficient for medium‑size generator or drive applications. Its rated speed is 1500 rpm at 50 Hz and 1800 rpm at 60 Hz, offering a balanced combination of torque and speed. Stand‑by apparent power is 13.8 kVA (50 Hz) or 16.7 kVA (60 Hz) with a voltage of 380 V (50 Hz) or 380/220 V (60 Hz). These figures indicate reliable power output for off‑grid use, while three‑phase supply ensures even load distribution.
As no direct comparisons are provided within the YEG series, the YEG170DTLC/DTLS can be regarded as a typical mid‑range model in the lineup. It bridges the gap between smaller variants such as the YEG150 and larger ones like the YEG200, making it suitable for tasks that require moderate but continuous power, for example in smaller industrial plants or as a drive for portable generators.
Yanmar YEG – generator-set engines: the collective page of the generator engine range with 22 versions, model designations from YEG140 to YEG750
Yanmar of Osaka, founded in 1912, is one of the long-established Japanese diesel-engine makers and, alongside its farm-machinery and construction-equipment division, also runs its own range of generator-set engines. This page gathers the YEG-range engines listed in the register as a separate generator-drive engine line, from YEG140 to YEG750.
Read on 3 more paragraphs
The register lists here 22 versions of the YEG range. The model designations run from YEG140 through the intermediate steps YEG150, YEG170, YEG200, YEG230, YEG300, YEG400 and YEG450 to the largest versions YEG500, YEG650 and YEG750, each with variants of the suffixes DSHS, DTHS, DSLC, DTLC, DSHC and other combinations. Apparent power ranges from 8.8 to 74.0 kVA (prime power 8.0 to 67.2 kW) at mains voltages of 220 to 415 V, single- or three-phase, and mains frequencies of 50 or 60 Hz; the engines are water-cooled with 3 or 4 cylinders, and set dry weight lies between 305 and 1,230 kg.
Engines of this range drive diesel generator sets used for construction-site power, standby installations and decentralised energy supply; the wide YEG model range lets Yanmar cover both smaller and large sets, competing with other Japanese and European engine makers in the genset market.
When buying a used generator set with a YEG engine, operating hours and the previous load profile (continuous duty or standby use only) count, along with the condition of the injection and cooling system, the tightness of crankshaft seals and valve cover, and the function of the generator side with its control electronics; spares and service run through the Yanmar dealer network.
Sources: SpecCodex register, model data: Yanmar YEG (Industriemotoren, Stromerzeuger-Baureihe), Yanmar (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Cooling | water-cooledcorrect |
Other data
| Apparent power | 13.8 (Stand-by, 50Hz) / 16.7 (Stand-by, 60Hz)correct |
|---|---|
| Frequency | 50/60correct |
| Phases | threecorrect |
| Prime power | 12.6 (50Hz) / 15.2 (60Hz)correct |
| Speed | 1500 (50Hz) / 1800 (60Hz)correct |
| Voltage | 380 (50Hz) / 380/220 (60Hz)correct |
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 8 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: Manufacturer documentation, yanmar.com (retrieved August 2026) · Data sources and cross-checks
Diesel engine in 3D section
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