Jenbacher
Jenbacher J420
Type 4
Jenbacher J420 — 61.2 L V20 (70° V) lean-burn gas engine (Type 4), multi-fuel: natural gas, biogas, landfill/sewage gas and special gases. Up to 1562 kWe (1411–1562 kWe across versions) at 1500 rpm / 50 Hz, electrical efficiency up to 44%; for power generation / CHP.
- Prime Power · 50 Hz
- 1,953 kVA
- Electrical Output
- 1,562 kWe
- Cylinders
- V20
- Displacement
- 61.2 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 | — | 1562 | 1952.5 |
Jenbacher J420 generator set context
The Jenbacher J420 is listed here as a natural gas generator-drive engine for 50 Hz generator sets, with a headline 1,953 kVA / 1,562 kWe / prime 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 | Jenbacher |
| Model | J420 |
| Series | Type 4 |
| Configuration | V20 |
| Cylinders | 20 |
| Displacement | 61.2 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Austria |
Frequently asked questions
What is the power output of the Jenbacher J420?
The Jenbacher J420 is rated at 1,953 kVA prime at 50 Hz (1,500 rpm).
Does the J420 run at 50 Hz or 60 Hz?
The Jenbacher J420 is rated for 50 Hz (1,500 rpm).
What fuel does the Jenbacher J420 use?
The Jenbacher J420 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the J420?
The Jenbacher J420 is a V20 (20-cylinder) engine with a displacement of 61.2 L.
Is the Jenbacher J420 still in production?
Yes — the Jenbacher J420 is a current production model.
Is a datasheet available for the J420?
Yes — an official Jenbacher datasheet for the Jenbacher J420 can be downloaded from this page.
Related Engines
Compare Jenbacher J420
Reference
- Canonical page
- /engines/jenbacher-j420
- Last database update
- 2026-06-08
- Manufacturer files
- 1 datasheet linked
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