John Deere
John Deere 4039
4000 Series
John Deere 4039 3.941 L L4 Turbocharged Intercooled diesel engine. EPA annual certification data lists 86-126 kWm at 1800 RPM. U.S. EPA Final Tier 4.
- Electrical Output
- 126 kW
- Cylinders
- L4
- Displacement
- 3.941 L
- Rated Speed
- 1,500 RPM
John Deere 4039 generator set context
The John Deere 4039 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 126 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 | John Deere |
| Model | 4039 |
| Series | 4000 Series |
| Configuration | L4 Turbocharged Intercooled |
| Cylinders | 4 |
| Displacement | 3.941 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 | United States |
Frequently asked questions
What fuel does the John Deere 4039 use?
The John Deere 4039 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 4039?
The John Deere 4039 is an inline-4 (4-cylinder) engine with a displacement of 3.941 L.
What emissions standard does the 4039 meet?
The John Deere 4039 is certified to U.S. EPA Final Tier 4 emissions standards.
Is the John Deere 4039 still in production?
Yes — the John Deere 4039 is a current production model.
Reference
- Canonical page
- /engines/john-deere-4039
- Last database update
- 2026-07-25
- Manufacturer files
- No datasheet linked yet
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