Discovery Energy 15LD440/D
Built: 2012-2017 · Series: 15LD440
More machines from model year 2012
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Discovery Energy 15LD440 – single-cylinder diesel engine of Lombardini design: 6 to 7 kW rated output, 2,750 to 3,600 rpm, 86 mm bore, Tier 4 Final, model years 2012 to 2017
Discovery Energy distributes small diesel engines in the United States that emerged from Kohler's engine business; the 15LD440 is based on a design from the Italian small-engine maker Lombardini. The five versions in the EPA certification data differ by additional designations such as 2750 RPM, B1, D and DGE.
Read on 3 more paragraphs
The register lists here five versions with 6 to 7 kW rated output at 2,750 to 3,600 rpm. The single-cylinder engine measures 86 mm bore and 76 mm stroke, maximum torque ranges from 18 to 25 Nm at 2,000 to 3,600 rpm. The engines are direct-injection, certified to Tier 4 (Final or Phase-in), in the under-8 kW power category, with model years from 2012 to 2017.
Single-cylinder diesel engines in this small power class drive portable generators, irrigation pumps, tillers and other light equipment; the Lombardini design of the 15LD440 ranks among the durable, widely used small diesel engines deployed worldwide in simple mobile and stationary applications.
On a used purchase, operating hours and the service history of the injection pump count, along with the condition of the cylinder head and cooling fins on this air-cooled single-cylinder engine, the tightness of the fuel system, and compatibility with low-sulphur diesel fuel; parts supply runs through Discovery Energy's distribution network as well as the broad, internationally established parts market for Lombardini small engines.
Sources: SpecCodex register, model data: Discovery Energy 15LD440
Technical data
Engine
| Engine family | EKHXL.442155correct |
|---|---|
| Engine families | CKHXL.442155correct |
| Fuel | 7-15 ppm Ultra Low Sulfur Dieselcorrect |
| Rated output | 7 kWcorrect |
| Power band | kW<8correct |
| Rated speed | 3,600 rpmcorrect |
| Maximum torque | 18 N·mcorrect |
| Speed at max. torque | 3,600 rpmcorrect |
| Cylinders | 1correct |
| Cylinder layout | in linecorrect |
| Bore | 86 mmcorrect |
| Stroke | 76 mmcorrect |
| Operating cycle | four-stroke dieselcorrect |
| Injection | direct injectioncorrect |
| Aspiration | naturally aspiratedcorrect |
| Emissions stage | Tier 4 (Final or Phase In)correct |
Origin and approval
| Built from | 2012correct |
|---|---|
| Built to | 2012correct |
| Model year from | 2012correct |
| Model year to | 2017correct |
| Sales region | bothcorrect |
Frequently asked questions
How much power does the Discovery Energy 15LD440/D have?
The Discovery Energy 15LD440/D delivers 7 kW.
When was the Discovery Energy 15LD440/D built?
Production years: 2012-2017.
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 23 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: US EPA — engine certification data (retrieved August 2026) · How we check the data
Diesel engine in 3D section
Turn the model, look inside and click an assembly — each one is explained.
