Description
Overview:
The Villiers MK20/MK25 Engine Sump Base BM191 is a genuine lower crankcase component for classic Villiers single-cylinder petrol engines used in garden and light construction machinery. Built from robust cast metal for long service life, it forms the bottom section of the engine, enclosing and protecting the oil reservoir while supporting stable lubrication. A sound sump helps prevent oil leaks and provides a true sealing face for the crankcase gasket. Supplied as unused old stock, it retains original specification for dependable alignment and fit during rebuilds. Designed specifically for the MK20 and MK25, this BM191 sump base is ideal when replacing a cracked, distorted, or heavily worn original to restore reliability and preserve the authenticity of vintage Villiers-powered equipment.
Key Features:
- Genuine Villiers part BM191 for assured compatibility and fit with MK20/MK25 engines
- Unused old stock (NOS); may show minor storage marks without affecting performance
- Durable cast-metal construction suited to heat, load, and vibration in regular operation
- Machined sealing faces to help reduce oil seepage when installed with the correct gasket
- Correct internal oil pathways and drain features to support consistent lubrication
- Direct replacement design; typically installs using standard fixings and procedures
- Helps restore engine integrity after damage, warping, or stripped threads in the old sump
- Preserves originality and value in restorations of classic Villiers-powered machinery
- Suitable where specified for related Villiers variants, including C25
Typical Applications:
Engine rebuilds, restorations, and leak repairs on vintage Villiers units powering cylinder mowers, rotavators, small generators, pumps, and compact site equipment. Useful when an existing sump is cracked, corroded, or sealing surfaces are worn, and during preventative maintenance to improve oil retention and service reliability in working or display engines.
Also known as:
Oil sump, oil pan, lower crankcase, crankcase base, engine base, bottom end cover, crankcase pan, engine lower housing, oil tray, base plate.
Fits Models:
MK20, MK25, C25
Product Specifications
| L&S Part No. | BM191 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | BM191 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Key Features | - Genuine Villiers part for MK20/MK25 engines - Durable cast-metal construction for heat and vibration resistance - Machined sealing faces reduce oil seepage - Correct internal oil pathways support lubrication - Direct replacement design for standard installation procedures |
| Fits Models | MK20 | MK25 / C25 |
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