Kohler
Kohler KDI2504ESM
KDI Mechanical
Rehlko/Kohler KDI2504ESM 2.482 L naturally aspirated inline-4 diesel engine for 60 Hz stationary emergency generator sets. The official 20REOZK specification publishes up to 21 kWe prime and 24 kWe standby at 1800 RPM. EPA annual data includes current Tier 4 Final families; older certification families must not be assumed to share the same emissions configuration.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-24
- Package route
- diesel generator sets
- Standby Power · 60 Hz
- 30 kVA
- Electrical Output
- 24 kWe
- Cylinders
- L4
- Displacement
- 2.482 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 | — | 21 | 26.3 |
| Standby Power | — | 24 | 30 |
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Kohler KDI2504ESM overhaul & repair parts
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Kohler KDI2504ESM generator set context
The Kohler KDI2504ESM is listed here as a diesel/hvo generator-drive engine for 60 Hz generator sets, with a headline 30 kVA / 24 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 | KDI2504ESM |
| Series | KDI Mechanical |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 2.482 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 KDI2504ESM?
The Kohler KDI2504ESM is rated at 30 kVA standby / 26 kVA prime at 60 Hz (1,800 rpm).
Does the KDI2504ESM run at 50 Hz or 60 Hz?
The Kohler KDI2504ESM is rated for 60 Hz (1,800 rpm).
What fuel does the Kohler KDI2504ESM use?
The Kohler KDI2504ESM is a diesel generator-set engine.
What is the displacement and cylinder configuration of the KDI2504ESM?
The Kohler KDI2504ESM is an inline-4 (4-cylinder) engine with a displacement of 2.482 L.
What emissions information is listed for the KDI2504ESM?
This record lists U.S. EPA Final Tier 4 for the Kohler KDI2504ESM. 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 KDI2504ESM?
The Kohler KDI2504ESM 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 KDI2504ESM?
This page links reference documents for the Kohler KDI2504ESM. Check each document's title, model coverage, revision and rating conditions before using it for selection.