Mitsubishi
Mitsubishi S4L2
SL Series
Mitsubishi S4L2 1.758 L L4 Naturally Aspirated diesel engine. The latest EPA certification record lists up to 18 kWm at 1800 RPM. U.S. EPA Final Tier 4.
- Electrical Output
- 18 kW
- Cylinders
- L4
- Displacement
- 1.758 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf · kWe estimated — see note below
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 16.7 | — | — |
| Standby Power | 18.1 | — | — |
Note: The manufacturer does not publish a separate kWe rating for this engine. kWe values shown are estimated from the rated mechanical output (kWm) using a conservative 90% alternator efficiency factor.
Mitsubishi S4L2 generator set context
The Mitsubishi S4L2 is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 18 kW / 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 | Mitsubishi |
| Model | S4L2 |
| Series | SL Series |
| Configuration | L4 Naturally Aspirated |
| Cylinders | 4 |
| Displacement | 1.758 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Final Tier 4 |
| Certifications | U.S. EPA Final Tier 4 |
| Country of Origin | Japan |
Frequently asked questions
What is the power output of the Mitsubishi S4L2?
The Mitsubishi S4L2 is rated at 23 kVA standby / 21 kVA prime at 60 Hz (1,800 rpm).
Does the S4L2 run at 50 Hz or 60 Hz?
The Mitsubishi S4L2 is rated for 60 Hz (1,800 rpm).
What fuel does the Mitsubishi S4L2 use?
The Mitsubishi S4L2 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the S4L2?
The Mitsubishi S4L2 is an inline-4 (4-cylinder) engine with a displacement of 1.758 L.
What emissions standard does the S4L2 meet?
The Mitsubishi S4L2 is certified to U.S. EPA Final Tier 4 emissions standards.
Is the Mitsubishi S4L2 still in production?
Yes — the Mitsubishi S4L2 is a current production model.
Is a datasheet available for the S4L2?
Yes — an official Mitsubishi datasheet for the Mitsubishi S4L2 can be downloaded from this page.
Reference
- Canonical page
- /engines/mitsubishi-s4l2
- Last database update
- 2026-07-25
- Manufacturer files
- 1 datasheet linked
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