Description
Overview:
The Main Bearing 020 Pair for Lister ST engines is a genuine Lister Petter component designed to support the crankshaft and maintain correct oil-clearance under load. Supplied as a matched pair of half-shells, it replaces a single main bearing position in the crankcase. The /020 size denotes an undersize bearing for a reground crankshaft, typically 0.020 in (0.51 mm). Manufactured to OEM specification from robust, wear-resistant bearing materials with a steel-backed construction, it provides stable running, reduces friction and helps extend engine life. This item is unused old stock and may show light tarnishing or storage marks, which do not affect function. OEM No. 570 12970/020. Suitable for Lister ST series engines used in generators, pumps, welders and industrial plant.
Key Features:
- Genuine Lister Petter part for assured fit and compatibility with ST engines
- OEM No. 570 12970/020 for accurate specification matching
- Supplied as a paired set of half-shells for one main bearing journal
- /020 undersize for reground crankshafts: 0.020 in (0.51 mm)
- Durable, steel-backed bearing construction for long service life
- Maintains correct oil film and crankshaft alignment under load
- Precision-machined surfaces for consistent clearances and smooth operation
- Supports efficient cold starts and steady running at working temperatures
- Suitable for routine overhauls, preventative maintenance and full rebuilds
- Unused old stock; may display cosmetic tarnish from storage only
Typical Applications:
Used during engine rebuilds or repairs where the crankshaft has been reground by 0.020 in (0.51 mm). Common in Lister ST-powered generators, compressors, pumps, welders and site equipment. Helps restore correct main bearing clearances, reduce vibration and noise, and prevent premature wear of the crankshaft and associated components.
Also known as:
Main bearing shells, crankshaft main bearing pair, ST series main shells, Lister Petter main bearing 0.020 in undersize (0.51 mm), engine main journal bearing set.
Fits Models:
ST
Product Specifications
| L&S Part No. | 570 12970/020 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Lister Petter |
| OEM No. | 570 12970/020 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Lister Petter |
| Key Features | - Genuine Lister Petter part for ST engines - OEM No. 570 12970/020 for precise fit - /020 undersize for reground crankshafts: 0.020 in (0.51 mm) - Steel-backed construction for durability - Supplied as a matched pair of half-shells |
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