Description
Overview:
The Piston Ring Set +020 for the Villiers MK40 engine is a genuine replacement ring pack designed to restore sealing performance in reconditioned cylinders. Manufactured from durable, wear‐resistant materials to OEM standards, it helps recover compression, control oil, and reduce blow‐by in classic MK40 applications. Supplied as new old stock (unused), it retains Villiers authenticity; minor tarnishing or storage dust may be present but does not affect function. The oversize specification is +0.020 in (+0.50 mm), intended for engines that have been re-bored and honed to the corresponding oversize. Ideal for owners and workshops maintaining vintage machinery powered by the Villiers MK40, this set supports reliable starting, steady idle, and consistent power. Genuine Villiers MPN: MK40RS20.
Key Features:
- Genuine Villiers part for assured fit and compatibility with MK40 (MPN: MK40RS20)
- Oversize +0.020 in (+0.50 mm) to suit re-bored cylinders
- Restores compression and improves oil control to reduce smoke and blow‐by
- Made to OEM tolerances for dependable sealing and long service life
- New old stock: unused original item; may show minor storage-related tarnish
- Direct replacement for worn rings; straightforward fit with standard workshop practice
- Helps improve starting, throttle response, and overall engine efficiency
- Suitable for preserving originality and performance in vintage Villiers-powered equipment
Typical Applications:
Used during engine overhauls, repairs, or restorations of Villiers MK40 engines where the cylinder has been re-bored to +0.020 in (+0.50 mm). Suitable for classic garden and light industrial machinery powered by the MK40, helping resolve low compression, excessive oil consumption, and poor starting caused by worn rings.
Also known as:
Piston rings, ring set, ring pack, compression rings, oil control rings, engine rings, oversize rings +0.020 in (+0.50 mm), MK40 piston ring kit.
Fits Models:
MK40
Product Specifications
| L&S Part No. | MK40RS20 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | MK40RS20 |
| Unit of Sale | 1 |
| Applications | MK40 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | MK40 |
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