Description
Overview:
These Con Rod Liners Standard (Pair) are genuine BSA components for the BSA 420CC industrial engine. Supplied as a matched pair, they form the big-end bearing surfaces between the connecting rod and the crankshaft, helping to maintain correct oil film and smooth rotation. Made from durable bearing-grade metal and precision finished, they reduce friction and wear in demanding operating conditions. As unused old stock, they may show light tarnish or storage marks, but this does not affect performance. Designed to the original BSA specification, these standard-size liners are a direct service replacement for engines built to factory dimensions, supporting reliable running and extended engine life. OEM reference: 86 858. Suitable for routine maintenance, rebuilds, and restoration of BSA 420CC-powered equipment.
Key Features:
- Genuine BSA part for assured fit and compatibility
- Standard size pair for one connecting rod big end (no oversize machining required)
- Precision-machined for correct oil clearance when used with an in-spec crankpin
- Durable bearing construction for long service life under industrial loads
- Helps reduce wear, vibration, and operating noise by stabilising the big end
- Supports smooth starting and consistent oil pressure
- Straightforward to install during routine servicing or engine rebuilds
- Unused vintage stock; cosmetic tarnish from storage does not affect function
- Suitable for generators, pumps, compressors and other plant using the BSA 420CC engine
- OEM reference 86 858 for easy identification and parts matching
Typical Applications:
Used when rebuilding or servicing the big-end bearing on BSA 420CC industrial engines found in site generators, water pumps, compressors, agricultural and light plant machinery. Ideal for restoring oil clearance, improving smoothness, and preventing premature crankpin and con-rod wear.
Also known as:
Connecting rod liners, big-end bearing shells, con-rod shells, crankpin shells, big-end liners, standard-size big-end inserts, con-rod big-end bearings for BSA 420CC.
Fits Models:
BSA 420CC
Alternate Part Numbers:
86 858, 86858
Product Specifications
| L&S Part No. | 86 858 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | BSA |
| OEM No. | 86 858 |
| Unit of Sale | 1 |
| Applications | BSA 420CC |
| Machine Type | Engines |
| Fits Brands | Villiers |
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