Hatz
Hatz 4M42
M Series
Hatz 4M42 is a 3.432 L inline-4 naturally aspirated air-cooled diesel engine. EPA annual certification data lists 39 kWm at 1800 RPM under Interim Tier 4.
- Electrical Output
- 39 kW
- Cylinders
- L4
- Displacement
- 3.432 L
- Rated Speed
- 1,500 RPM
Hatz 4M42 generator set context
The Hatz 4M42 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 39 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 | Hatz |
| Model | 4M42 |
| Series | M Series |
| Configuration | L4 Naturally Aspirated |
| Cylinders | 4 |
| Displacement | 3.432 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Air-Cooled |
| Emissions Standard | U.S. EPA Interim Tier 4 |
| Certifications | U.S. EPA Interim Tier 4 |
| Country of Origin | Germany |
Frequently asked questions
What fuel does the Hatz 4M42 use?
The Hatz 4M42 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 4M42?
The Hatz 4M42 is an inline-4 (4-cylinder) engine with a displacement of 3.432 L.
What emissions standard does the 4M42 meet?
The Hatz 4M42 is certified to U.S. EPA Interim Tier 4 emissions standards.
Is the Hatz 4M42 still in production?
Yes — the Hatz 4M42 is a current production model.
Related Engines
Reference
- Canonical page
- /engines/hatz-4m42
- Last database update
- 2026-07-25
- Manufacturer files
- No datasheet linked yet
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