PSI
PSI 22L
PSI 22L is a 21.93 L V12 spark-ignition natural-gas generator engine. Natural-gas ratings: 50 Hz prime 280 kWe / 340 kWm; 50 Hz standby 320 kWe / 378 kWm; 60 Hz prime 375 kWe / 434 kWm; 60 Hz standby 450 kWe / 510 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
- 400 kVA
- Electrical Output
- 320 kWe
- Cylinders
- V12
- Displacement
- 21.93 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 | |
|---|---|---|---|
| Prime Power | 340 | 280 | 350 |
| Standby Power | 378 | 320 | 400 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 434 | 375 | 468.8 |
| Standby Power | 510 | 450 | 562.5 |
Ask about PSI 22L
Choose parts / service or sourcing. Your message includes this model and page link.
PSI 22L overhaul & repair parts
Already running a PSI 22L? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.
Start with engine identification
We do not have a reviewed public parts preview for this model yet. Send the engine details and tell us what needs repair.
Let’s identify the right parts.
The model is the starting point. Serial numbers and build configurations can change which parts fit.
- Take a clear photo of the engine nameplate.
- Tell us what needs repair or replacement.
- Send both in WhatsApp to start a fitment check.
Opens WhatsApp with 22L and your selected categories included. Attach your photos there.
PSI 22L generator set context
The PSI 22L is listed here as a natural gas generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 400 kVA / 320 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.
Also searched as
Technical Specifications
| Brand | PSI |
| Model | 22L |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 21.93 L |
| Compression Ratio | 10.5:1 |
| Dry Weight | 1650 kg |
| 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 22L?
The PSI 22L is rated at 400 kVA standby / 350 kVA prime at 50 Hz (1,500 rpm); and 563 kVA standby / 469 kVA prime at 60 Hz (1,800 rpm).
Does the 22L run at 50 Hz or 60 Hz?
The PSI 22L is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the PSI 22L use?
The PSI 22L is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the 22L?
The PSI 22L is a V12 (12-cylinder) engine with a displacement of 21.93 L.
What emissions information is listed for the 22L?
This record lists U.S. EPA Stationary for the PSI 22L. 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 22L?
The PSI 22L 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 22L?
This page links reference documents for the PSI 22L. Check each document's title, model coverage, revision and rating conditions before using it for selection.