Mitsubishi
Mitsubishi S4L2-61SDH-NP2
S4L2 Series
Mitsubishi S4L2-61SDH-NP2 1.758L L4 constant-speed diesel engine for generator applications. Official MHI output without fan - 50 Hz: standby 25.1 kWm at 2970 rpm, prime 21.6 kWm at 2970 rpm. Emissions: Unregulated.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-23
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 27 kVA
- Electrical Output
- 21 kWe
- Cylinders
- L4
- Displacement
- 1.758 L
- Rated Speed
- 2,970 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf · kWe estimated — see note below
50 Hz2970 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 21.6 | 18.4 | 23 |
| Standby Power | 25.1 | 21.3 | 26.6 |
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.
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Mitsubishi S4L2-61SDH-NP2 overhaul & repair parts
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Mitsubishi S4L2-61SDH-NP2 generator set context
The Mitsubishi S4L2-61SDH-NP2 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 27 kVA / 21 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 | Mitsubishi |
| Model | S4L2-61SDH-NP2 |
| Series | S4L2 Series |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 1.758 L |
| Dry Weight | 155 kg |
| Dimensions (L×W×H) | 645 × 433 × 572 mm |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Japan |
Frequently asked questions
What is the power output of the Mitsubishi S4L2-61SDH-NP2?
The Mitsubishi S4L2-61SDH-NP2 is rated at 27 kVA standby / 23 kVA prime at 50 Hz (2,970 rpm).
Does the S4L2-61SDH-NP2 run at 50 Hz or 60 Hz?
The Mitsubishi S4L2-61SDH-NP2 is rated for 50 Hz (2,970 rpm).
What fuel does the Mitsubishi S4L2-61SDH-NP2 use?
The Mitsubishi S4L2-61SDH-NP2 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the S4L2-61SDH-NP2?
The Mitsubishi S4L2-61SDH-NP2 is an inline-4 (4-cylinder) engine with a displacement of 1.758 L.
What is the catalog status of the Mitsubishi S4L2-61SDH-NP2?
The Mitsubishi S4L2-61SDH-NP2 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 S4L2-61SDH-NP2?
This page links reference documents for the Mitsubishi S4L2-61SDH-NP2. Check each document's title, model coverage, revision and rating conditions before using it for selection.