Description
Overview:
This Piston Ring Set +030 is a genuine Villiers component for the MK25 and C25 engines. It is designed to restore cylinder sealing and maintain correct oil control in vintage single-cylinder engines commonly found in garden and light construction machinery. The +030 size denotes an oversize of +0.030 inch (approximately 0.76 mm), intended for use after a cylinder rebore to that dimension. Manufactured from durable cast iron for stability at operating temperatures, the rings help recover compression, reduce blow-by, and support smooth running. As unused old stock, the set offers authentic fitment for original engines. Minor tarnishing from age may be present, which does not affect performance once installed. Suitable for maintenance, repair, or full top-end overhaul on period Villiers equipment.
Key Features:
- Genuine Villiers part for correct fit and reliable performance on MK25 and C25 engines
- +0.030 in (0.76 mm) oversize to suit cylinders re-bored to the matching specification
- Durable cast iron construction to maintain ring tension and wear resistance over time
- Restores compression and reduces oil consumption by improving cylinder sealing
- Precision-machined ring faces for consistent bedding-in and smooth operation
- Suitable for vintage restorations using original specifications and tolerances
- Unused old stock; may show light storage tarnish typical of vintage parts
- Straightforward replacement during a top-end service; check ring end gaps during assembly
- Helps stabilise idle, improve starting, and maintain power output in older engines
- Supports longer engine life when combined with correct honing and lubrication
Typical Applications:
Used during engine rebuilds, decokes, and top-end overhauls of Villiers MK25/C25 units in vintage garden machinery and light plant. Suitable where cylinders have been re-bored to +0.030 in (0.76 mm), to recover compression and oil control for regular use or preservation of classic equipment.
Also known as:
Oversize piston rings +0.030 in, 0.76 mm oversize rings, compression rings, oil-control rings, ring set, cylinder ring pack, top-end rings, engine ring kit for vintage Villiers engines.
Fits Models:
MK25
C25
Product Specifications
| L&S Part No. | MK25RS30 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | MK25RS30 |
| Unit of Sale | 1 |
| Applications | C25, MK25 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | MK25 / C25 |
