Description
Overview:
The Valve Collar Bottom for JAP Model 4F engines (OEM No. 16043) is a small, precision-machined metal component that sits beneath the valve spring to locate and support it. By keeping the spring correctly seated, it helps the valve train run true, supports stable timing, and reduces wear on adjoining parts. This genuine JAP part is unused vintage stock, so it may show light tarnish or storage marks, but it remains fully serviceable. It is designed as a direct replacement to OEM specification, ensuring proper fit and alignment in JAP 4F engines used on compact plant, garden, and general-purpose machinery. Built for reliability and long life, it is a practical choice for restorations, routine top-end overhauls, and keeping classic engines running smoothly.
Key Features:
- Genuine JAP OEM part for Model 4F (OEM No. 16043) for assured compatibility and performance
- Durable machined metal construction for long service life under engine vibration and heat
- Precisely formed seating face to centre and support the valve spring correctly
- Direct replacement that maintains original clearances and geometry in the valve assembly
- Unused old stock; cosmetic ageing such as light tarnish does not affect function
- Straightforward to fit during a valve service or top-end rebuild with standard tools
- Helps maintain stable valve timing and smooth running by preventing spring wander
- Suitable for restoration and maintenance of vintage machinery powered by JAP 4F engines
Typical Applications:
Used during valve gear service, rebuilds, or full restorations of JAP 4F engines on older equipment such as small mixers, pumps, generators, and mowers. Ideal when replacing worn or missing bottom spring collars to restore proper valve spring location, preserve compression and starting, and extend the life of tappets, guides, and retainers in vintage engines.
Also known as:
Valve spring seat, lower valve spring retainer, bottom spring collar, valve spring base, lower spring seat. These terms refer to the same lower support that sits beneath the valve spring to keep it correctly positioned in the cylinder head.
Fits Models:
4F
Alternate Part Numbers:
16043
Product Specifications
| L&S Part No. | 16043 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| Unit of Sale | 1 |
| Applications | 4F |
| Machine Type | Engines |
| Fits Brands | JAP |
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