Description
Overview:
The Valve Spring Collar (MPN 12855) is a genuine Jap component designed for the valve train of Jap Model 5 and Model 6 industrial engines. Made from durable steel, it locates the top of the valve spring and maintains the correct tension and alignment, helping to keep valve timing stable and engine performance consistent. This collar is suitable for stationary and small plant engines commonly found in construction and horticultural machinery. As unused old stock, it is a vintage Genuine Part that may show minor tarnish or cosmetic marks from storage, which do not affect function. It is a practical replacement during servicing or a rebuild, restoring reliable valve spring seating and preventing uneven wear on valves, guides, and seats in JAP engines.
Key Features:
- Genuine Jap Part for assured fit and compatibility with JAP industrial engines
- Steel construction for long service life in demanding conditions
- Maintains correct valve spring preload and alignment to support stable valve timing
- Direct replacement for MPN 12855 with OEM geometry
- Helps reduce wear on valve train components and prevent misalignment
- Suitable for refurbishment and maintenance of vintage JAP engines
- Straightforward to install with standard engine service tools
- Reliable choice for preventative maintenance and long-term engine care
- Unused old stock; cosmetic ageing may be visible but does not affect performance
Typical Applications:
Used in the top-end assembly of Jap industrial engines powering small plant and equipment such as mixers, pumps, generators, and compactors. Ideal during routine top-end refreshes, full rebuilds, or when replacing damaged or fatigued valve train hardware to maintain smooth running, consistent compression, and dependable operation in workshop, site, and agricultural settings.
Also known as:
Valve spring retainer, valve spring collar, spring collar, valve spring cap, valve spring top retainer. These terms are often used interchangeably by mechanics and parts catalogues when referring to the component that seats and locates the valve spring at the top of the assembly.
Fits Models:
JAP 5
JAP 6
Product Specifications
| L&S Part No. | 12855 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Jap Part for JAP Model 5 and 6 engines - Steel construction ensures durability in demanding conditions - Maintains valve spring preload and alignment - Direct replacement with OEM geometry - Suitable for vintage JAP engine maintenance and refurbishment |
| Fits Models | JAP 5 |
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