Kohler
Kohler KDI1903M
KDI Mechanical
Rehlko/Kohler KDI1903M 1.861 L naturally aspirated inline-3 diesel engine for 60 Hz stationary emergency generator sets. The official 15REOZK specification publishes up to 15 kWe prime and 17 kWe standby at 1800 RPM. EPA annual certification data identifies current Tier 4 Final KDI1903M families.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-24
- Package route
- diesel generator sets
- Standby Power · 60 Hz
- 21 kVA
- Electrical Output
- 17 kWe
- Cylinders
- L3
- Displacement
- 1.861 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | — | 15 | 18.8 |
| Standby Power | — | 17 | 21.3 |
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Kohler KDI1903M overhaul & repair parts
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Kohler KDI1903M generator set context
The Kohler KDI1903M is listed here as a diesel/hvo generator-drive engine for 60 Hz generator sets, with a headline 21 kVA / 17 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
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Technical Specifications
| Brand | Kohler |
| Model | KDI1903M |
| Series | KDI Mechanical |
| Configuration | L3 |
| Cylinders | 3 |
| Displacement | 1.861 L |
| Compression Ratio | 18:1 |
| Fuel Type | Diesel/HVO |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Final Tier 4 |
| Certifications | U.S. EPA Tier 4 Final, EPA Stationary Emergency |
| Country of Origin | Italy |
| Year Introduced | 2014 |
Frequently asked questions
What is the power output of the Kohler KDI1903M?
The Kohler KDI1903M is rated at 21 kVA standby / 19 kVA prime at 60 Hz (1,800 rpm).
Does the KDI1903M run at 50 Hz or 60 Hz?
The Kohler KDI1903M is rated for 60 Hz (1,800 rpm).
What fuel does the Kohler KDI1903M use?
The Kohler KDI1903M is a diesel generator-set engine.
What is the displacement and cylinder configuration of the KDI1903M?
The Kohler KDI1903M is an inline-3 (3-cylinder) engine with a displacement of 1.861 L.
What emissions information is listed for the KDI1903M?
This record lists U.S. EPA Final Tier 4 for the Kohler KDI1903M. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Kohler KDI1903M?
The Kohler KDI1903M is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the KDI1903M?
This page links reference documents for the Kohler KDI1903M. Check each document's title, model coverage, revision and rating conditions before using it for selection.