Description
Overview:
This is a genuine JAP governor cover gasket, OEM number 12840, for industrial engines. It sits between the governor cover and the housing to create an oil-tight, air-tight seal, helping the governor maintain stable engine speed under load. Made from durable, oil-resistant gasket fibre designed for small industrial engines, it provides a reliable replacement for worn or damaged seals. Suitable for refurbishment and routine maintenance, it keeps oil inside the governor assembly and prevents air leaks that can affect governing accuracy. Ideal for older machinery still powered by JAP engines, including construction and garden equipment. Designed to fit JAP 4 and JAP 5 models, this unused vintage part offers an authentic fit and finish for original-spec repairs on classic plant and machinery.
Key Features:
- Genuine JAP part (OEM 12840) for correct fit and compatibility on Model 4 and Model 5 governors
- Forms a secure, oil-tight seal to prevent leaks and maintain consistent governor control
- Robust, heat- and oil-resistant fibre gasket material suited to industrial engine environments
- Accurate hole pattern and profile for the original governor cover, aiding straightforward installation
- Helps restore stable idle and running speed, supporting overall engine efficiency
- Suitable for maintenance and restorations of vintage JAP-powered equipment
- Unused old stock; may show minor storage ageing that does not affect function or sealing
- No special tools typically required; fit as per standard gasket practice with clean mating faces
Typical Applications:
Used when servicing or rebuilding JAP 4 and 5 industrial engines found in cement mixers, plate compactors, generators, water pumps, saw benches, and horticultural machinery. Suitable for stopping oil seepage and air ingress at the governor cover to keep governing smooth and reliable during daily use.
Also known as:
Governor housing gasket, governor case gasket, governor cover seal, engine governor gasket, JAP 12840 gasket, governor lid seal.
Fits Models:
JAP 4
JAP 5
Product Specifications
| L&S Part No. | 12840 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine JAP part, OEM number 12840 - Fits JAP 4 and JAP 5 models - Oil-resistant fibre for industrial engines - Ensures oil-tight, air-tight seal - Suitable for vintage machinery maintenance |
| Fits Models | JAP 4, 3 |
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