Description
Overview:
This Valve End Cap is a genuine Jap OEM component designed for the valve train of JAP 4 and JAP4 industrial engines. It closes and protects the end of the valve assembly to help maintain correct operation and sealing under load. Made from robust metal with a precision-machined form, it is built to handle the heat, vibration and oil exposure typical of stationary industrial engines. Supplied as unused old stock, the part remains serviceable and is suited to restoring original function on classic JAP power units used on construction and agricultural machinery. OEM No. 16721 confirms correct specification and fit. As a direct-fit item, it replaces a worn, damaged or missing cap to support reliable running and long-term durability in service.
Key Features:
- Genuine Jap part for assured fit and function on JAP 4 and JAP4 engines (OEM No. 16721)
- Durable metal construction to withstand heat, vibration and oil contamination
- Precision-machined seating surfaces for consistent alignment and valve operation
- Direct-fit replacement requiring no modifications to compatible engines
- Suitable for vintage engine restoration and repair where authenticity matters
- Supplied as unused old stock; may show tarnishing or storage marks that do not affect use
- Helps maintain stable engine performance by correctly capping the valve assembly
- Compact, service-grade design for straightforward installation with standard hand tools
- Supports longevity by replacing fatigued or missing original components
- Trusted OEM specification for dependable compatibility and performance
Typical Applications:
Used on JAP industrial engines commonly found driving mixers, pumps, generators and agricultural equipment. Ideal for workshop overhauls, heritage restorations, and keeping legacy plant operational. Replaces damaged or perished caps to restore stable running, reduce leaks and protect internal valve components in regular service or display engines.
Also known as:
JAP engine valve cap, JAP 4/3 valve end cap, valve end cover, valve closure cap, valve cap for JAP industrial engines.
Fits Models:
JAP 4
JAP4
Product Specifications
| L&S Part No. | 16721 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| OEM No. | 16721 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Jap part for JAP 4 and JAP4 engines - Durable metal construction withstands heat and vibration - Precision-machined for consistent valve operation - Direct-fit replacement, no modifications needed - Suitable for vintage engine restoration and repair |
| Fits Models | JAP 4, 3 |
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