Description
Overview:
This Sump Plug is a Genuine Part for JAP petrol engines, designed to seal the oil sump and prevent leaks that can harm engine performance. Made from durable metal, it uses a threaded design with a hex head for easy tightening and removal during servicing. It is intended for classic JAP engines found across older plant, garden, and industrial machinery. Suitable for JAP 3 and JAP 4 models, it keeps the crankcase oil-tight during operation and maintenance. Supplied as unused vintage stock, it may show light marks from age but remains fully functional. A correct-fit sump plug helps maintain stable oil levels, reduces mess during oil changes, and supports long-term reliability in well-kept vintage engines. Manufacturer Part Number (MPN): 3730.
Key Features:
- Genuine JAP OEM part for correct fit and reliable sealing
- Compatible with JAP 3 and JAP 4 petrol engines
- Robust metal construction for longevity in workshop and field use
- Oil-tight seal helps prevent drips and contamination of working surfaces
- Threaded plug with hex head for straightforward fitting using a standard spanner or socket
- Suitable for routine servicing, repairs, and full restorations of vintage engines
- Unused vintage stock with potential minor cosmetic age marks
- Works with the specified sealing washer where required (check your engine manual)
- Helps maintain sump integrity and stable oil levels over service intervals
- Direct replacement for MPN 3730
Typical Applications:
Used during oil changes, leak repairs, and engine rebuilds on vintage JAP petrol engines commonly fitted to small plant, generators, pumps, mowers, cultivators, and similar machinery. Ideal for workshops and restorers needing a correct-fit drain plug to restore sump sealing and keep engines running cleanly and efficiently.
Also known as:
Oil drain plug, sump drain plug, drain bung, oil pan plug, oil pan bolt, crankcase drain plug, engine drain screw, sump bolt.
Fits Models:
JAP 3
JAP 4
JAP3
JAP4
Alternate Part Numbers:
3730
Product Specifications
| L&S Part No. | 3730 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JAP |
| Unit of Sale | 1 |
| Size | OD: 15mm |
| Machine Type | Engines |
| Fits Brands | JAP |
| Key Features | - Genuine JAP OEM part ensures correct fit and reliable sealing - Compatible with JAP 3 and JAP 4 petrol engines - Threaded plug with hex head for easy fitting - Robust metal construction for longevity - Helps maintain sump integrity and stable oil levels |
| Fits Models | JAP 4, 3 |
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