The Generator EngineEncyclopedia
PSI logo

PSI

PSI 40L-D

In Production

PSI 40L-D — 39.24 L V12 (150 × 185 mm bore × stroke) turbocharged & intercooled diesel generator engine, 15:1 compression, 3390 kg dry. From the official PSI 40L-D spec sheet.

PSI 40L-D 39.24L V12 diesel generator engine — 1,250 kVA standby specifications
PSI 40L-D 39.24L V12 diesel generator engine — 1,250 kVA standby specifications
Standby Power · 60 Hz
1,250 kVA
Electrical Output
1,000 kWe
Cylinders
V12
Displacement
39.24 L
Rated Speed
1,800 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf

60 Hz1800 RPM

kWmkWekVA
Standby Power1111.110001250

PSI 40L-D generator set context

The PSI 40L-D is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 1,250 kVA / 1,000 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

40ld40L DPSI 40L-D

Technical Specifications

BrandPSI
Model40L-D
ConfigurationV12
Cylinders12
Displacement39.24 L
Compression Ratio15:1
Dry Weight3390 kg
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardU.S. EPA Tier 3
Country of OriginUnited States

Frequently asked questions

What is the power output of the PSI 40L-D?

The PSI 40L-D is rated at 1,250 kVA standby at 60 Hz (1,800 rpm).

Does the 40L-D run at 50 Hz or 60 Hz?

The PSI 40L-D is rated for 60 Hz (1,800 rpm).

What fuel does the PSI 40L-D use?

The PSI 40L-D is a diesel generator-set engine.

What is the displacement and cylinder configuration of the 40L-D?

The PSI 40L-D is a V12 (12-cylinder) engine with a displacement of 39.24 L.

What emissions standard does the 40L-D meet?

The PSI 40L-D is certified to U.S. EPA Tier 3 emissions standards.

Is the PSI 40L-D still in production?

Yes — the PSI 40L-D is a current production model.

Is a datasheet available for the 40L-D?

Yes — an official PSI datasheet for the PSI 40L-D can be downloaded from this page.

Reference

Last database update
2026-06-29
Manufacturer files
1 datasheet linked

Need this engine?

Need a generator package using this engine? Haifeng Machinery can help with sizing, alternator selection, controller, enclosure, voltage, and compliance support.

Get a Quote ↗

Or browse Haifeng's diesel generator sets