Description
Overview:
The Head Bolt for JAP industrial engines is a durable steel fastener that secures the cylinder head firmly to the engine block, maintaining the head gasket seal and correct compression. This Genuine JAP part is designed for reliable fitment on classic JAP power units used across construction and garden machinery, helping engines run efficiently under heat, vibration, and load. Suitable for models such as JAP 3 and JAP 4/3, it supports accurate clamping of the head to prevent oil and coolant leaks and to protect against warping. Supplied as unused old stock, it may show light tarnishing or age-related marks from storage, but remains unused and original. A practical choice for maintenance, rebuilds, or restoration of JAP industrial engines where authenticity and compatibility matter.
Key Features:
- Genuine JAP part for assured compatibility and correct fit on listed engines
- Tough steel construction provides consistent clamping force under heat and vibration
- Supports proper sealing of the head gasket to maintain compression and prevent leaks
- Hex-head design for straightforward installation with standard spanners or sockets
- Made to original specification for thread engagement and alignment
- Suitable for service work, rebuilds, and restorations of vintage JAP engines
- Unused old stock; may show cosmetic ageing from storage only
Typical Applications:
Used when refitting or replacing a cylinder head during gasket changes, decarbonising, top-end overhauls, or full engine restorations. Common on JAP-powered construction and garden machinery, helping keep engines reliable after routine maintenance or repair work.
Also known as:
Cylinder head screw, head fixing bolt, head retaining bolt, cylinder cover bolt, top-end bolt, head securing fastener.
Fits Models:
2a, 2s, 4/3, 43, 4f, JAP 2, JAP 3, JAP 4, JAP 5, JAP 6
Alternate Part Numbers:
16193
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