Description
Overview:
This Piston Ring Set (040) is a genuine Lister Petter component for maintaining compression and oil control in Petter single‐cylinder industrial engines. Manufactured from wear‐resistant ferrous alloy and precision ground, the rings restore an effective gas seal between piston and cylinder wall, supporting efficient combustion and reliable starting. The "040" size indicates an oversize of 0.040 inch (1.02 mm), intended for use with cylinders that have been rebored to this specification. Ideal for service and overhaul work on Petter AB1 and AC1 engines used in generators, pumps, compact plant, and other industrial equipment. Supplied as unused old stock, it may show cosmetic signs of age, but remains functionally sound. OEM reference: 391823 (040). Genuine Lister Petter quality for dependable performance and long service life.
Key Features:
- Genuine Lister Petter part for assured fit and function
- OEM No. 391823 (040) for precise identification
- 0.040 inch (1.02 mm) oversize for rebored cylinders
- Helps restore compression, power, and fuel efficiency
- Reduces blow‐by and oil consumption with a tight cylinder seal
- Wear‐resistant, heat‐treated material for durability in tough duty
- Precision‐finished ring faces for consistent bedding‐in
- Suitable for routine maintenance and full overhauls
- Straightforward to install using standard workshop practices
- Unused old stock vintage item; may have minor tarnishing only
Typical Applications:
Used during engine rebuilds or scheduled maintenance on Petter single‐cylinder industrial engines to recover lost compression, stabilise idle, and control oil usage. Common in equipment such as site generators, water pumps, welders, compressors, light construction machines, and agricultural or horticultural machinery where Petter AB1/AC1 platforms are fitted.
Also known as:
Petter piston rings 040 oversize, Lister Petter ring kit 0.040 inch (1.02 mm), AB1/AC1 oversize piston ring pack, engine ring set for rebored Petter cylinders, compression and oil control rings for Petter industrial engines.
Fits Models:
Petter AB1
Petter AC1
Petter ACZ1S
Product Specifications
| L&S Part No. | 391823 (040) |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Lister Petter |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Lister Petter part ensures correct fit and function - 0.040 inch (1.02 mm) oversize for rebored cylinders - Suitable for Petter AB1 and AC1 engines - Wear-resistant ferrous alloy for durability - Reduces blow-by and oil consumption with tight seal |
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