Isuzu
Isuzu KJ-4JJ1X
J Series
Isuzu KJ-4JJ1X 2.999 L L4 Turbocharged Intercooled diesel engine. The latest EPA certification record lists up to 73 kWm at 1800 RPM. U.S. EPA Tier 3.
- Electrical Output
- 73 kW
- Cylinders
- L4
- Displacement
- 2.999 L
- Rated Speed
- 1,500 RPM
Isuzu KJ-4JJ1X generator set context
The Isuzu KJ-4JJ1X is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 73 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 | Isuzu |
| Model | KJ-4JJ1X |
| Series | J Series |
| Configuration | L4 Turbocharged Intercooled |
| Cylinders | 4 |
| Displacement | 2.999 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 3 |
| Certifications | U.S. EPA Tier 3 |
| Country of Origin | Japan |
Frequently asked questions
What fuel does the Isuzu KJ-4JJ1X use?
The Isuzu KJ-4JJ1X is a diesel generator-set engine.
What is the displacement and cylinder configuration of the KJ-4JJ1X?
The Isuzu KJ-4JJ1X is an inline-4 (4-cylinder) engine with a displacement of 2.999 L.
What emissions standard does the KJ-4JJ1X meet?
The Isuzu KJ-4JJ1X is certified to U.S. EPA Tier 3 emissions standards.
Is the Isuzu KJ-4JJ1X still in production?
Yes — the Isuzu KJ-4JJ1X is a current production model.
Is a datasheet available for the KJ-4JJ1X?
Yes — an official Isuzu datasheet for the Isuzu KJ-4JJ1X can be downloaded from this page.
Reference
- Canonical page
- /engines/isuzu-kj-4jj1x
- Last database update
- 2026-07-25
- Manufacturer files
- 1 datasheet linked
Need this engine?
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