Description
Overview:
The Villiers MK40 Con Rod Bush Small End (EM903) is a genuine replacement bush for the small end of the connecting rod on Villiers MK40 petrol engines. Manufactured from a robust bearing-grade metal with a bronze finish, it provides a smooth, durable running surface at the piston pin interface to minimise friction and wear. Fitted correctly, it helps maintain accurate alignment of the piston and rod, reducing noise and improving engine efficiency. Supplied as unused old stock, it retains original Villiers quality and is suitable for owners maintaining, rebuilding or restoring classic machinery powered by the MK40. It is a practical choice for keeping vintage engines in reliable service across small plant, stationary equipment and garden machinery.
Key Features:
- Genuine Villiers part EM903 for correct fit and reliable operation on MK40 engines
- Hard-wearing bearing metal with a bronze running surface for low friction and long service life
- OEM geometry to support the piston pin accurately and minimise small-end play
- Press-fit design; standard workshop practice may include final sizing/reaming after installation for correct clearance
- Unused old stock; cosmetic tarnishing may be present but does not affect performance
- Helps cure small-end knock, reduces wear on the connecting rod, and restores smooth running
- Straightforward to install with appropriate tools and alignment
- Suitable for routine overhauls and authentic restorations where original specification matters
- Genuine status clearly identified for peace of mind and parts compatibility
Typical Applications:
Used during engine rebuilds, top-end overhauls and restorations of Villiers MK40-powered equipment. Ideal when refurbishing worn small ends, addressing piston pin noise, or returning a vintage engine to reliable service in mowers, cultivators, light plant, pumps or generators that employed the MK40 unit.
Also known as:
Often referred to as a wrist pin bush, piston pin bushing, little-end bush, small-end bearing, con-rod eye bush, or small-end sleeve bearing within workshop and parts catalogues.
Fits Models:
MK40
Product Specifications
| L&S Part No. | EM903 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | EM903 |
| Unit of Sale | 1 |
| Applications | MK40 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | MK40 |
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