Lister Petter
Lister Petter Lister 9/1 (JP1)
JP Series
Lister Petter Lister 9/1 (JP1) discontinued legacy engine. Small legacy Lister/Petter diesel with continuing owner searches for parts, manuals, and off-grid or marine auxiliary service.
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- Manufacturer files
- No datasheet
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Maximum Mechanical Power
- 7 kW
- Cylinders
- L1
- Displacement
- 1.4 L
- Rated Speed
- 1,000 RPM
Lister Petter Lister 9/1 (JP1) industrial power context
The Lister Petter Lister 9/1 (JP1) is a high-speed industrial diesel engine rated at 6.7 kW mechanical output at 1,000 RPM. It is used in off-road equipment and can support engineered variable-speed power systems, but its maximum power is not a direct 50/60 Hz alternator rating. Verify the drivetrain, power electronics, cooling, and emissions installation with Volvo Penta before specifying a generator package.
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Technical Specifications
| Brand | Lister Petter |
| Model | Lister 9/1 (JP1) |
| Series | JP Series |
| Configuration | Single-cylinder, naturally aspirated |
| Cylinders | 1 |
| Displacement | 1.4 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Water-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United Kingdom |
| Year Introduced | 1929 |
| Year Discontinued | 1952 |
Frequently asked questions
What is the maximum power output of the Lister Petter Lister 9/1 (JP1)?
The Lister Petter Lister 9/1 (JP1) has a maximum mechanical output of 6.7 kW at 1,000 rpm. This is a variable-speed off-road rating, not a fixed-speed generator-set rating.
What fuel does the Lister Petter Lister 9/1 (JP1) use?
The Lister Petter Lister 9/1 (JP1) is a diesel variable-speed industrial engine.
What is the displacement and cylinder configuration of the Lister 9/1 (JP1)?
The Lister Petter Lister 9/1 (JP1) is an inline-1 (1-cylinder) engine with a displacement of 1.4 L.
Is the Lister 9/1 (JP1) still in production?
No — the Lister Petter Lister 9/1 (JP1) is discontinued (production ended around 1952). Its specifications and datasheets remain archived here for reference.