Kohler
Kohler KSD1403NA
KSD Series
Rehlko/Kohler KSD1403NA 1.391 L naturally aspirated inline-3 diesel engine with electronically managed indirect common-rail injection. Rehlko publishes 18.9 kW Stage V output and 18.4 kW Tier 4 Final output at 3000 RPM. EPA annual certification data separately lists the KSD-NATG 1403/18 generator trim at 17 kW and 1800 RPM; no generator electrical output is inferred from that mechanical rating.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-24
- Package route
- diesel generator sets
- Maximum Mechanical Power
- 19 kW
- Cylinders
- L3
- Displacement
- 1.391 L
- Rated Speed
- 2,200 RPM
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Kohler KSD1403NA overhaul & repair parts
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Kohler KSD1403NA industrial power context
The Kohler KSD1403NA is a high-speed industrial diesel/hvo engine rated at 18.9 kW mechanical output at 2,200 RPM. It is used in off-road equipment and can support engineered variable-speed power systems, but its maximum power is not a direct 50/60 Hz alternator rating. Verify the drivetrain, power electronics, cooling, and emissions installation with Volvo Penta before specifying a generator package.
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Technical Specifications
| Brand | Kohler |
| Model | KSD1403NA |
| Series | KSD Series |
| Configuration | L3 |
| Cylinders | 3 |
| Displacement | 1.391 L |
| Dry Weight | 121 kg |
| Dimensions (L×W×H) | 482 × 418 × 552 mm |
| Fuel Type | Diesel/HVO |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Euro Stage V / U.S. EPA Final Tier 4 |
| Certifications | EU Stage V, U.S. EPA Tier 4 Final, CARB, China IV |
| Country of Origin | Italy |
| Year Introduced | 2023 |
Frequently asked questions
What is the maximum power output of the Kohler KSD1403NA?
The Kohler KSD1403NA has a maximum mechanical output of 18.9 kW at 2,200 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.
What fuel does the Kohler KSD1403NA use?
The Kohler KSD1403NA is a diesel variable-speed industrial engine.
What is the displacement and cylinder configuration of the KSD1403NA?
The Kohler KSD1403NA is an inline-3 (3-cylinder) engine with a displacement of 1.391 L.
What emissions information is listed for the KSD1403NA?
This record lists Euro Stage V / U.S. EPA Final Tier 4 for the Kohler KSD1403NA. 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 KSD1403NA?
The Kohler KSD1403NA 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 KSD1403NA?
This page links reference documents for the Kohler KSD1403NA. Check each document's title, model coverage, revision and rating conditions before using it for selection.