Lister Petter
Lister Petter LPWS4
Alpha LPW Series
Lister Petter LPWS4 is a 1.859 L inline-4 naturally aspirated water-cooled diesel engine. EPA annual certification data lists 20 kWm at 1800 RPM under Interim Tier 4.
Overhaul & repair parts- Manufacturer files
- No datasheet
- Last updated
- 2026-07-25
- Package route
- diesel generator sets
- Mechanical Output
- 20 kW
- Cylinders
- L4
- Displacement
- 1.859 L
- Rated Speed
- 1,500 RPM
Ask about Lister Petter LPWS4
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Lister Petter LPWS4 overhaul & repair parts
Already running a Lister Petter LPWS4? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.
Reviewed part-number references
A starting point for identification. Fitment must be confirmed before ordering.
- Overhaul gasket kit657-34281
LPWS4 overhaul joint set
Fitment check: Match the exact engine designation; confirm the complete engine serial number and build code before ordering
Source: Lister-Petter LPW, LPWT and LPWS Master Parts Manual, Edition 11
- Cylinder head gasket754-40891
LPWS4 1.47 mm cylinder head gasket
Fitment check: Match the exact engine designation; confirm the complete engine serial number and build code before ordering
Source: Lister-Petter LPW, LPWT and LPWS Master Parts Manual, Edition 11
- Crankshaft750-11461
LPWS4 crankshaft kit
Fitment check: Match the exact engine designation; confirm the complete engine serial number and build code before ordering
Source: Lister-Petter LPW, LPWT and LPWS Master Parts Manual, Edition 11
Selected references only; this is not a complete overhaul list or a stock listing.
Let’s identify the right parts.
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Lister Petter LPWS4 generator set context
The Lister Petter LPWS4 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 20 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.
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Technical Specifications
| Brand | Lister Petter |
| Model | LPWS4 |
| Series | Alpha LPW Series |
| Configuration | L4 Naturally Aspirated |
| Cylinders | 4 |
| Displacement | 1.859 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Interim Tier 4 |
| Certifications | U.S. EPA Interim Tier 4 |
| Country of Origin | United Kingdom |
Frequently asked questions
What fuel does the Lister Petter LPWS4 use?
The Lister Petter LPWS4 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the LPWS4?
The Lister Petter LPWS4 is an inline-4 (4-cylinder) engine with a displacement of 1.859 L.
What emissions information is listed for the LPWS4?
This record lists U.S. EPA Interim Tier 4 for the Lister Petter LPWS4. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Lister Petter LPWS4?
The Lister Petter LPWS4 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.