Description
Overview:
This Governor Shaft Complete is a genuine Villiers part for BSA 320cc and 420cc engines, designed to regulate engine speed for steady, reliable running under changing loads. Manufactured from durable metal, it links the governor mechanism to the throttle system so the engine maintains a controlled idle and governed top speed. As an unused old-stock vintage item, it may show light tarnishing or cosmetic age-related marks, but remains fully serviceable. Marked with OEM No. 86 128, it is intended as a direct replacement to restore correct governor function on BSA 320cc and BSA 420cc engines commonly used across construction, horticultural, and industrial machinery. Suitable for maintenance, repair, and sympathetic restorations where correct fit and function are essential.
Key Features:
- Genuine Villiers component (OEM No. 86 128) for assured compatibility and fit
- Designed for BSA 320cc and 420cc engines to restore stable speed control
- Durable metal construction for long service life in harsh working environments
- Supplied as a complete shaft assembly for straightforward replacement
- Precisely machined interfaces for smooth governor movement and consistent response
- Helps maintain governed top speed and steady idle under load changes
- Suitable for routine servicing or vintage engine restoration projects
- Unused old stock; may show minor tarnish without affecting function
- Supports efficient, economical engine performance by preventing over-speeding
Typical Applications:
Used in BSA 320cc and 420cc stationary engines powering equipment such as compactors, generators, pumps, small mixers, and garden machinery. Ideal for repairs where unstable revs, hunting, or poor load response suggest worn governor linkage parts. Helps return engines to predictable speed control in both trade and DIY settings.
Also known as:
Governor spindle, governor shaft assembly, engine speed regulator shaft, throttle governor shaft, speed control shaft for BSA engines.
Fits Models:
BSA 320CC, BSA 420CC
Product Specifications
| L&S Part No. | 86 128 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| Unit of Sale | 1 |
| Machine Type | Engines |
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