Description
Overview:
This Cylinder Base Gasket is a Genuine Part for the JAP Model 5 industrial engine, OEM No. 12845. It sits between the cylinder and engine block to create a tight, reliable seal that helps maintain compression and prevents oil and gas leaks. Made from durable gasket material suited to engine temperatures and fluids, it is a precise, flat-profile component cut to the original pattern for the JAP 5. It is suitable for tradespeople, DIY users, and restorers working on vintage machinery and stationary plant powered by JAP engines. Supplied as unused old stock, the gasket may show minor tarnishing or storage marks, but remains serviceable. Use it as a direct replacement when rebuilding, re-sealing, or servicing JAP 5 engines to restore efficient operation.
Key Features:
- Genuine JAP Part for assured compatibility and fit
- OEM No. 12845 for accurate, direct replacement on JAP 5 engines
- Forms a secure seal between cylinder and block to maintain compression
- Helps prevent coolant, fuel, and oil seepage at the cylinder base joint
- Durable gasket material suitable for typical engine heat and fluids
- Pre-cut stud and passage holes to match original specification
- Flat profile for straightforward installation with standard workshop practices
- Suitable for servicing and restoring vintage industrial machinery
- Unused old stock; cosmetic ageing from storage may be present
Typical Applications:
Used during engine rebuilds, head and barrel removals, leak rectification, and routine maintenance on JAP 5 industrial engines powering generators, pumps, mixers, compressors, site equipment, and other stationary plant. Suitable when replacing a damaged or fatigued gasket to restore sealing integrity and stable running.
Also known as:
Barrel base gasket, cylinder-to-crankcase seal, cylinder foot gasket, engine block interface gasket, J.A.P. Model 5 base seal.
Fits Models:
JAP 5, JAP5
Product Specifications
| L&S Part No. | 12845 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine JAP Part ensures compatibility with JAP Model 5 engines - OEM No. 12845 for precise, direct replacement - Creates a secure seal to maintain engine compression - Prevents coolant, fuel, and oil leaks at cylinder base - Durable material withstands typical engine heat and fluids |
| Fits Models | JAP 5 |


