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PSI 18L

In Production

PSI 18L — 18.3 L V10 spark-ignition gas engine, turbocharged + aftercooled, running on natural gas or propane (LPG). Up to 350 kWe standby; 50/60 Hz (1500/1800 rpm). U.S. EPA factory-certified for power generation.

PSI 18L 18.3L V10 natural gas generator engine — 338 kVA standby specifications
PSI 18L 18.3L V10 natural gas generator engine — 338 kVA standby specifications
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

kWmkWekVA
Standby Power320270337.5

60 Hz1800 RPM

kWmkWekVA
Standby Power422350437.5

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.

Also searched as

PSI 18L

Technical Specifications

BrandPSI
Model18L
ConfigurationV10
Cylinders10
Displacement18.3 L
Fuel TypeNatural Gas
Ignition TypeSpark Ignition
Cooling MethodLiquid-Cooled
Emissions StandardU.S. EPA Stationary
CertificationsEPA
Country of OriginUnited 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 standard does the 18L meet?

The PSI 18L is certified to U.S. EPA Stationary emissions standards.

Is the PSI 18L still in production?

Yes — the PSI 18L is a current production model.

Is a datasheet available for the 18L?

Yes — an official PSI datasheet for the PSI 18L can be downloaded from this page.

Reference

Canonical page
/engines/psi-gas-18l
Last database update
2026-06-11
Manufacturer files
1 datasheet linked

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