Description
Overview:
The Valve Cover Plate for JAP 6 petrol engines is a genuine part (OEM No. 18455) made by Villiers for reliable fit and function. Manufactured from durable metal, it closes the valve chest to help keep dirt out and oil in, protecting the valve gear and maintaining stable engine operation. It is intended for classic JAP 6 engines found in site equipment and stationary machinery. The plate features a central mounting hole for straightforward fastening using existing hardware. Approximate size is 4 inches x 4 inches (about 100 mm x 100 mm), making it a tidy, low-profile replacement that matches the original footprint. This is a practical service item for routine maintenance or restoration of JAP 6 and JAP6 engines.
Key Features:
- Genuine part for JAP 6 petrol engines (Villiers OEM No. 18455) for assured compatibility and fitment
- Robust metal construction designed to withstand regular use and site conditions
- Protects valve gear by sealing the valve chest against debris ingress and oil loss
- Central mounting hole for secure attachment with original fastener
- Approx. 4 in x 4 in (about 100 mm x 100 mm) to match original cover plate footprint
- Simple replacement during service with no modifications typically required
- Helps support consistent engine running and longevity when paired with routine maintenance
- Suitable for both working machines and restored engines where authenticity matters
Typical Applications:
Used when servicing or rebuilding JAP 6 petrol engines fitted to compactors, mixers, generators, pumps, and other site or agricultural machinery. Ideal for replacing damaged, corroded, or missing covers to restore proper sealing and protect internal valve components.
Also known as:
Valve chest cover, tappet chest cover, valve cover plate, inspection cover, engine valve plate, JAP 6 cover, engine service cover.
Fits Models:
JAP 6, JAP6
Alternate Part Numbers:
87309 STD, 87309STD, 87309, 48546
Product Specifications
| L&S Part No. | 18455 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| OEM No. | 18455 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | JAP |
| Key Features | - Genuine part for JAP 6 petrol engines (OEM No. 18455) - Durable metal construction for regular use - Seals valve chest to prevent debris ingress - Central mounting hole for easy fastening - Approx. 100 mm x 100 mm matches original footprint |
| Fits Models | JAP 6 |

