Description
Overview:
This valve end cap is a metal closure plug designed for vintage JAP engines, sealing the valve or tappet access on the cylinder head or valve chest. It helps retain oil, keeps dirt and moisture out of the valve train area, and supports smooth running on older engines. Built from durable metal with a machined finish, it is suitable for the heat and oil exposure typical of classic engines. Supplied as unused old stock, the part may show light tarnishing from storage but remains serviceable. Ideal for maintenance and restoration work on JAP Model 5 and JAP Model 6 engines. For easy identification, the manufacturer's part number is 16001.
Key Features:
- Made from durable metal to withstand heat, vibration, and oil exposure
- Correct form factor to seal the valve/tappet access on JAP Model 5/6 engines
- Helps reduce oil weeps and prevents ingress of dust and debris
- Machined seating surfaces for consistent sealing when fitted with the appropriate joint or washer
- Unused old stock: functional part with possible cosmetic tarnish only
- Straightforward installation using standard hand tools
- Period-correct appearance suitable for authentic restorations
- Useful as a direct replacement during routine service or rebuilds
- MPN 16001 for quick part verification
Typical Applications:
Used during engine rebuilds, servicing, or leak repairs on JAP Model 5/6 engines found in classic machinery and stationary equipment. Suitable for restoring reliable sealing of the valve or tappet access point, preventing contamination and maintaining oil control on vintage engines that see occasional or regular use.
Also known as:
Valve chest cap, tappet cover, inspection cap, valve plug, valve access plug, engine end cap, service plug, maintenance cap.
Fits Models:
JAP Model 5, JAP Model 6, JAP 5, JAP 6
Alternate Part Numbers:
16001
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