Description
Overview:
The Cylinder Head Pillar Nut is a genuine Villiers spare for the C12 engine, used to clamp the cylinder head securely to the block via the head studs. Made from robust steel for strength and heat resistance, it is suitable for vintage machinery powered by the Villiers C12, including workshop rebuilds and restorations of classic garden or construction equipment. This is unused old stock that retains original factory quality, with possible light tarnish from storage. It is a direct-fit replacement for the original hardware, ensuring correct engagement and reliable clamping under engine vibration and temperature cycles. Genuine Villiers part, Manufacturer Part Number (MPN): EM1798.
Key Features:
- Genuine Villiers OEM part for accurate fit and reliable service life
- Steel construction for strength, heat tolerance, and resistance to deformation
- Pillar nut design provides the correct stand-off height for the C12 head
- Clean hex faces for positive grip with standard spanners during torqueing
- Unused old stock (NOS) preserves original manufacturing tolerances
- Suitable for engines subject to vibration and thermal cycling
- Direct replacement to restore original specification and clamping force
- Helps prevent head movement and gasket leaks when fitted correctly
- May show minor storage tarnish or dust with no effect on function
- Clearly identified by MPN EM1798 for easy matching in restorations
Typical Applications:
Used when refitting the cylinder head after gasket replacement, decarbonising, or a full engine rebuild. Ideal for restorers, workshops, and collectors maintaining Villiers-powered machinery. Helps ensure stable head clamping for smooth running and longevity when tightened to the manufacturer's specification.
Also known as:
Head pillar nut, cylinder head nut, engine head nut, long nut, spacer nut, pillar fastener for head studs.
Fits Models:
C12
Product Specifications
| L&S Part No. | EM1798 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | EM1798 |
| Unit of Sale | 1 |
| Applications | C12 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | C12 |
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