Description
Overview:
The Big End Shells Std MK20/25 are genuine Villiers bearing shells for the connecting rod big end on MK20 and MK25 industrial engines. Marked EM305 STD, they are the standard size for unground crankpins. Made with a steel backing and an anti-friction bearing layer, they support the crankshaft journal, maintain the correct oil film, and reduce wear and friction under load. These shells help restore smooth, efficient running and are suitable for routine maintenance or full rebuilds of Villiers stationary and industrial engines. As new old stock vintage parts, they may show light tarnish or storage marks but remain unused and fully serviceable. Designed to OEM tolerances for a precise fit, they install cleanly when following the service manual's lubrication and torque settings.
Key Features:
- Genuine Villiers part for assured compatibility and longevity (OEM No. EM305 STD)
- Standard size (STD) for use with standard, unground crankpins
- Steel-backed shells with an anti-friction lining for dependable load support and wear resistance
- Manufactured to OEM tolerances to maintain correct oil clearance and stable oil film
- Helps reduce big-end knock, vibration, and friction for smoother, quieter running
- Suitable for workshop rebuilds and preventative maintenance on Villiers industrial engines
- New old stock: may show cosmetic tarnish or storage dirt; function and fit unaffected
- Straightforward fitting with basic tools when following the engine manual
Typical Applications:
Used during engine rebuilds or servicing to replace worn big-end bearings on Villiers industrial engines, helping to restore oil pressure, reduce friction, and prevent crankpin scoring. Suitable for mixers, pumps, generators, mowers, and other plant powered by Villiers MK-series engines in trade, agricultural, and domestic settings.
Also known as:
Big end bearings, connecting rod bearings, con-rod shells, big-end shell bearings, crankpin bearings, engine shell bearings.
Fits Models:
MK20
Product Specifications
| L&S Part No. | EM305 STD |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Villiers part for MK20/25 engines - Standard size for unground crankpins - Steel-backed with anti-friction lining - OEM tolerances ensure precise fit - Suitable for engine rebuilds and maintenance |
| Fits Models | MK20 |
