PSI
PSI 18L
PSI 18L is a 18.3 L V10 spark-ignition natural-gas generator engine. Natural-gas ratings: 50 Hz standby 270 kWe / 320 kWm; 60 Hz standby 350 kWe / 422 kWm. Ratings exclude propane/LPG data and were verified from official PSI natural-gas rating tables.
Overhaul & repair parts- Manufacturer files
- 2 datasheets
- Last updated
- 2026-07-24
- Package route
- gas generator sets
- Standby Power · 50 Hz
- 338 kVA
- Electrical Output
- 270 kWe
- Cylinders
- V10
- Displacement
- 18.3 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Standby Power | 320 | 270 | 337.5 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Standby Power | 422 | 350 | 437.5 |
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PSI 18L overhaul & repair parts
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PSI 18L generator set context
The PSI 18L is listed here as a natural gas generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 338 kVA / 270 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 | PSI |
| Model | 18L |
| Configuration | V10 |
| Cylinders | 10 |
| Displacement | 18.3 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | EPA |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the PSI 18L?
The PSI 18L is rated at 338 kVA standby at 50 Hz (1,500 rpm); and 438 kVA standby at 60 Hz (1,800 rpm).
Does the 18L run at 50 Hz or 60 Hz?
The PSI 18L is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the PSI 18L use?
The PSI 18L is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the 18L?
The PSI 18L is a V10 (10-cylinder) engine with a displacement of 18.3 L.
What emissions information is listed for the 18L?
This record lists U.S. EPA Stationary for the PSI 18L. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the PSI 18L?
The PSI 18L 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 18L?
This page links reference documents for the PSI 18L. Check each document's title, model coverage, revision and rating conditions before using it for selection.