Description
Overview:
The Piston Ring Set +030 for Villiers MK40 engines is a genuine replacement ring pack designed to restore correct sealing and oil control in vintage single-cylinder engines. Manufactured from durable, heat-resistant metal for long service life, the set renews compression and reduces blow-by, helping the MK40 run smoothly and start reliably. Marked +030 to suit a rebored cylinder, it equates to +0.030 in (0.76 mm) oversize. This is ideal for engine rebuilds where the bore has been machined and honed to the next service size. Supplied as unused old stock, the parts are new and serviceable but may show age-related tarnish or storage marks. Suitable for maintenance and restoration of heritage machinery powered by Villiers MK40. Manufacturer reference: MK40RS30. Genuine Villiers part.
Key Features:
- Genuine Villiers part for assured fit and compatibility with MK40 engines
- Correct oversize: +0.030 in (0.76 mm) for use after rebore and hone
- Restores compression for easier starting and stable idle
- Reduces blow-by and oil consumption for cleaner, more efficient running
- Precision-ground ring faces and controlled side clearances for reliable sealing
- Durable construction for sustained performance under vintage operating conditions
- Straightforward to fit with standard engine tools and correct ring orientation
- Unused old stock (NOS): fully functional, with possible cosmetic ageing only
- Helps protect the piston and cylinder by maintaining proper oil control film
- Suitable for collectors, restorers, and workshops maintaining classic equipment
Typical Applications:
Used during rebuilds and overhauls of Villiers MK40 engines in vintage horticultural, agricultural, and light construction equipment. Common in restorations following cylinder reboring, to return engines to serviceable compression and dependable running for mowers, small plant, pumps, generators, and similar machinery.
Also known as:
Piston rings +030, oversize ring set +0.030 in (0.76 mm), ring pack, engine rings, compression rings, oil control rings, MK40 +030 ring set, rebuild rings, overhaul ring set, vintage Villiers rings.
Fits Models:
MK40
Product Specifications
| L&S Part No. | MK40RS30 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | MK40RS30 |
| Unit of Sale | 1 |
| Applications | MK40 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | MK40 |
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