Lister Petter INDUSTRIAL ENGINES
DiscontinuedLister Petter Lister 21/2 (JP2)
JP Series
Lister Petter Lister 21/2 (JP2) discontinued legacy engine. Small legacy Lister/Petter diesel with continuing owner searches for parts, manuals, and off-grid or marine auxiliary service.
Cylinders / Config
L2, naturally aspirated
Displacement
2.9 L
Mechanical & Electrical Specifications
| Brand | Lister Petter |
| Model | Lister 21/2 (JP2) |
| Series | JP Series |
| Configuration | L2, naturally aspirated |
| Cylinders | 2 |
| Displacement | 2.9 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Water-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United Kingdom |
| Year Introduced | 1930 |
| Year Discontinued | 1952 |
Frequently Asked Questions
What is the maximum power output of the Lister Petter Lister 21/2 (JP2)?
The Lister Petter Lister 21/2 (JP2) has a maximum mechanical output of 15.7 kW at 1,200 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.
What fuel does the Lister Petter Lister 21/2 (JP2) use?
The Lister Petter Lister 21/2 (JP2) is a diesel variable-speed industrial engine.
What is the displacement and cylinder configuration of the Lister 21/2 (JP2)?
The Lister Petter Lister 21/2 (JP2) is an inline-2 (2-cylinder) engine with a displacement of 2.9 L.
Is the Lister 21/2 (JP2) still in production?
No — the Lister Petter Lister 21/2 (JP2) is discontinued (production ended around 1952). Its specifications and datasheets remain archived here for reference.
Is a datasheet available for the Lister 21/2 (JP2)?
Yes — an official Lister Petter datasheet for the Lister Petter Lister 21/2 (JP2) can be downloaded from this page.