Description
Overview:
The Magneto Driving Gear 18t is a Genuine Villiers component for BSA industrial engines, engineered to drive the magneto and help maintain correct ignition timing. Manufactured from robust machined steel, this straight-cut spur gear is designed for dependable engagement with the timing train. It is a precise replacement for engines that use a magneto ignition system, including the BSA 420CC and BSA 320CC models. Supplied as unused old stock, it may show light tarnishing or age-related marks, which do not affect functionality. Identified by OEM No. 86 25, this gear offers the correct form and fit for vintage rebuilds and routine servicing, supporting smooth starting and consistent running on older plant and machinery where reliability of the ignition drive is essential.
Key Features:
- Genuine Villiers part for assured compatibility and build quality
- OEM reference: 86 25 for accurate identification and replacement
- 18-tooth spur gear for stable, consistent magneto drive
- Durable steel construction for long service life under industrial use
- Helps maintain correct ignition timing and smooth engine performance
- Direct-fit replacement for specified BSA 420CC and 320CC engines
- Suitable for restoration projects and ongoing maintenance of vintage equipment
- Unused old stock; cosmetic ageing such as tarnish may be present
- Compact, simple design for straightforward handling during timing work
- Supports reliable spark generation by ensuring steady magneto rotation
Typical Applications:
Used on BSA industrial engines to drive the magneto within the timing chest. Commonly found on stationary engines powering site mixers, pumps, generators, compressors, and horticultural or agricultural machinery. Ideal where maintaining original ignition components improves reliability, authenticity, and serviceability of vintage plant.
Also known as:
Magneto drive gear, magneto timing gear, ignition drive gear, 18T timing gear, drive gear for magneto, engine timing gear (magneto), gear wheel for magneto drive.
Fits Models:
BSA 420CC, BSA 320CC
Product Specifications
| L&S Part No. | 86 25 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| Unit of Sale | 1 |
| Machine Type | Engines |
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