Description
Overview:
The Piston Ring Set +040 for Villiers MK15 and MK20 engines is a genuine Villiers spare designed to restore sealing performance in vintage single-cylinder petrol engines commonly found on garden and light construction machinery. Built with durable metal construction to withstand heat and friction, the rings help maintain correct cylinder pressure for easier starting, steady idling, and stronger pulling power under load. The +0.040 in oversize specification (+1.02 mm) suits engines that have been rebored to the next service size, ensuring a precise fit and consistent compression. Ideal for rebuilds and restorations, this set replaces worn rings that cause low compression and oil consumption, helping keep classic Villiers-powered equipment running reliably.
Key Features:
- Genuine Villiers part for assured compatibility and quality
- +0.040 in oversize (+1.02 mm) for rebored cylinders requiring the next service size
- Restores compression and reduces blow-by and oil consumption
- Durable metal rings engineered for stable sealing and long service life
- Precision fit for MK15 and MK20 to support reliable starting and smooth running
- Helps improve fuel efficiency and overall engine responsiveness
- Suitable for vintage restoration and routine overhaul work
- Unused old stock; cosmetic tarnishing from storage may be present but does not affect function
- Designed for straightforward fitting by competent DIY users or professionals using standard engine tools
Typical Applications:
Used during engine rebuilds or repairs on Villiers-powered lawn mowers, rotavators, pumps, generators, compact mixers, and other small plant where the MK15 or MK20 is fitted. Ideal after a rebore or when diagnosing low compression, hard starting, loss of power, or high oil use in classic equipment.
Also known as:
Piston rings, cylinder rings, engine rings, oversize rings, +0.040 rings (+1.02 mm), compression rings, oil control rings for Villiers engines.
Fits Models:
MK15, MK20
Product Specifications
| L&S Part No. | MK1520RS40 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | MK1520RS40 |
| Unit of Sale | 1 |
| Applications | MK15, MK20 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | MK15 |
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