Description
Overview:
This cylinder head is a finned, cast-metal head for Villiers industrial petrol engines. It seals the combustion chamber and helps dissipate heat for reliable running. Supplied as a Genuine Villiers part to OEM specification BM163/18mm, it is intended for the MK20 and MK25 engines used across small plant and machinery. The part is unused old stock from the period, so you may see minor storage marks or tarnishing. There is slight damage to one cooling fin, but the sealing faces and mounting points remain serviceable, so function is not affected. Designed as a direct replacement for worn, cracked, or corroded heads, it restores correct compression and thermal performance while retaining period-correct fit and appearance for vintage equipment.
Key Features:
- Genuine Villiers part for assured compatibility and quality (OEM BM163/18mm)
- Correct fit for MK20 and MK25 industrial engines
- Robust finned casting aids heat dissipation and engine efficiency
- Unused old stock; cosmetic tarnish from storage does not affect use
- Slight damage to a single fin; sealing and fitment unaffected
- Machined mating surfaces for proper gasket sealing
- Direct replacement using original studs, nuts, and standard head gasket
- Supports reliable starting, compression retention, and smooth running
- Suitable for restorations and ongoing maintenance of vintage plant
Typical Applications:
Used when servicing or restoring Villiers MK-series engines in compact construction, horticultural, and industrial machinery. Ideal for engines fitted to equipment such as small cement mixers, plate compactors, generators, pumps, and light plant where a sound head is required to cure issues from head warping, corrosion, or damaged fins, and to maintain correct heat management and compression.
Also known as:
Cylinder head casting, finned engine head, engine head assembly for Villiers industrial engines, BM163 head, 18 mm specification head, vintage Villiers top end head, replacement head for Villiers single-cylinder air‐cooled units.
Fits Models:
MK20, MK25
Product Specifications
| L&S Part No. | BM163/18mm |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | MK20/25 |
| Key Features | - Genuine Villiers part for MK20 and MK25 engines - Finned cast-metal design aids heat dissipation - Direct replacement using original studs and gasket - Unused old stock with minor cosmetic tarnish - Machined surfaces ensure proper gasket sealing |
| Fits Models | MK20 |

