Perkins
Perkins 402J-05G
Source-checked against user-supplied Perkins manufacturer datasheets: 1500 rpm: gross mechanical prime 3.6 kW / standby 4 kW. Sources: 402J-05G_Tech Data Sheet_Mar 19' TPD2215_E2.pdf p.2. Catalogue power_kw is the highest documented standby rating; individual frequency/duty fields preserve the source ratings. Electrical genset output and emissions certification have not been inferred. Production status is unknown. Discontinued is the user-authorized catalogue classification (2026-10-21 import), not manufacturer-confirmed cessation; no production-end year is asserted.
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- 1 document · 1 datasheet
- Last updated
- 2026-10-21
- Package route
- diesel generator sets
- Mechanical Output
- 4 kW
- Cylinders
- L2
- Displacement
- 0.51 L
- Rated Speed
- 1,500 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 3.6 | — | — |
| Standby Power | 4 | — | — |
Estimated rating: 3.6 kWe (4 kW × 0.90) · 50 Hz · standby
Estimated rating: 3.2 kWe (3.6 kW × 0.90) · 50 Hz · prime
Planning estimate, not a manufacturer generator rating. Confirm the alternator, engine speed and operating conditions.
Perkins 402J-05G overhaul & repair parts
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Perkins 402J-05G generator set context
The Perkins 402J-05G is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 4 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.
Model name formats
Technical Specifications
| Brand | Perkins |
| Model | 402J-05G |
| Configuration | L2 |
| Cylinders | 2 |
| Displacement | 0.51 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
Frequently asked questions
Does the 402J-05G run at 50 Hz or 60 Hz?
The Perkins 402J-05G is rated for 50 Hz (1,500 rpm).
What fuel does the Perkins 402J-05G use?
The Perkins 402J-05G is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 402J-05G?
The Perkins 402J-05G is an inline-2 (2-cylinder) engine with a displacement of 0.51 L.
Is the 402J-05G still in production?
No — the Perkins 402J-05G is discontinued. Its specifications and datasheets remain archived here for reference.
Are reference documents available for the 402J-05G?
This page links reference documents for the Perkins 402J-05G. Check each document's title, model coverage, revision and rating conditions before using it for selection.