Discovery Energy KDW 702 (3600 Const)
Built: 2023-2026 · Series: KDW
More machines from model year 2023
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
Kohler KDW – the water-cooled Lombardini small diesels (FOCS): KDW 1003 and 1404, 6 to 18 kW, swirl chamber and naturally aspirated
KDW stands for 'Kohler Diesel Water-cooled' and denotes the small liquid-cooled diesel engines that Kohler took over from Lombardini's FOCS range after acquiring the company in 2007 – the LDW 1003 became the KDW 1003, the LDW 1404 the KDW 1404. They are naturally aspirated swirl-chamber engines without turbocharging, common rail or aftertreatment, meeting their limits in the power class below 19 kW (EPA Tier 4 final, EU Stage V for this class) through combustion alone. Since the engine division was sold, the maker trades as Rehlko; the EPA certificates are held by Discovery Energy.
Read on 3 more paragraphs
The type designation gives displacement and cylinder count: KDW 1003 is the 1.0-litre three-cylinder, KDW 1404 the 1.4-litre four-cylinder, and the smaller KDW 502 and 702 are one- and two-cylinder engines of the same family. The suffixes in brackets – 1500, 1800, 2200 to 3600 RPM, 'Const' for constant speed – denote the speed variants for which the engine is certified; 1500 or 1800 rpm typically means generator sets at 50 or 60 Hz. The register lists 38 versions with 6 to 18 kW at 1,500 to 3,600 rpm and 31 to 79.6 Nm of torque, all with indirect injection and naturally aspirated; certifications run from model year 2012 to 2026.
Applications are small generator sets, trailer refrigeration units, sweepers, lawn and municipal tractors, compact loaders and boat engines – wherever a quiet, low-vibration small diesel with a small footprint is needed.
When buying, the cooling system (liquid cooling needs a radiator and thermostat, which often clog on compact machines), the glow plug system and valve clearance count; the engines are simply built, and parts are available through Lombardini, Kohler and Rehlko dealers.
Sources: SpecCodex register, model data: KDW (EPA-Zertifizierungsdaten, Zertifikatsinhaber Discovery Energy), Kohler Betriebsanleitung KDW 502/702/1003/1404 (manufacturer), Rehlko (vormals Kohler Engines) Dieselprogramm
Technical data
Engine
| Engine family | SKHXL01.4SF1correct |
|---|---|
| Engine families | SKHXL01.4SF1; TKHXL01.4SF1; RKHXL01.4SF1; PKHXL01.4SF1correct |
| Fuel | 7-15 ppm Ultra Low Sulfur Dieselcorrect |
| Rated output | 12 kWcorrect |
| Power band | 8<=kW<19correct |
| Rated speed | 3,600 rpmcorrect |
| Maximum torque | 31 N·mcorrect |
| Speed at max. torque | 3,600 rpmcorrect |
| Cylinders | 2correct |
| Cylinder layout | in linecorrect |
| Bore | 75 mmcorrect |
| Stroke | 77.6 mmcorrect |
| Operating cycle | four-stroke dieselcorrect |
| Injection | indirect injectioncorrect |
| Aspiration | naturally aspiratedcorrect |
| Emissions stage | Tier 4 (Final or Phase In)correct |
Origin and approval
| Built from | 2023correct |
|---|---|
| Built to | 2026correct |
| Model year from | 2023correct |
| Model year to | 2026correct |
| Sales region | bothcorrect |
Frequently asked questions
How much power does the Discovery Energy KDW 702 (3600 Const) have?
The Discovery Energy KDW 702 (3600 Const) delivers 12 kW.
When was the Discovery Energy KDW 702 (3600 Const) built?
Production years: 2023-2026.
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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
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.
Missing a figure you were looking for? Report it →
Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
Other models in this series
KDW 1003 (1500 RPM)
KDW 1003 (1800 RPM)
KDW 1003 (1800Const)
KDW 1003 (2200 RPM)
KDW 1003 (2400 RPM)
KDW 1003 (2600 RPM)
KDW 1003 (2800 RPM)
KDW 1003 (2850 RPM)
KDW 1003 (2850)
KDW 1003 (3300 RPM)
KDW 1003 (3600Const)
KDW 1003/B1
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.
