Description
Overview:
The Governor Friction Plug for Jap industrial engines is a small wear component within the governor assembly that helps stabilise engine speed under changing loads. This Genuine Jap part (MPN 14770/1) uses a durable friction material to provide the controlled resistance the governor needs to prevent hunting and surging. It is suited to vintage JAP engines found in industrial, construction, and agricultural machinery, including JAP 4 and JAP4 models. As unused old stock, it is a period-correct replacement for restorations and routine maintenance, offering the correct fit and function to OEM standards. Built for the oily, high-vibration environment of a governor housing, it supports reliable idle and governed speed, helping protect engine performance and component longevity.
Key Features:
- Genuine Jap part for assured compatibility and performance (MPN 14770/1)
- Restores correct governor friction to stabilise RPM and reduce speed hunting
- Manufactured to OEM tolerances for a precise fit in the governor assembly
- Durable friction-grade material suitable for oil exposure and heat
- Ideal for servicing and restoration of vintage industrial engines
- Unused old stock; cosmetic ageing may be present without affecting function
- Straightforward installation with basic tools to minimise downtime
- Helps maintain consistent idle and governed top speed under varying load
- Supports longevity of governor parts by providing the correct damping
- Direct replacement for the original plug to keep engines running as intended
Typical Applications:
Used during governor servicing or engine rebuilds to correct erratic revs, surging, or unstable idle on vintage Jap industrial engines. Common in workshop maintenance of older equipment used on site, in agriculture, or in small machinery fleets, where steady governed speed is important for safety, fuel efficiency, and reliable operation.
Also known as:
Governor plug, friction plug, governor friction plug, speed governor plug, governor damper plug, governor friction insert, speed control plug for Jap industrial engines.
Fits Models:
JAP 4, JAP4
Product Specifications
| L&S Part No. | 14770/1 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Jap |
| OEM No. | 147701 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Key Features | - Genuine Jap part ensures compatibility (MPN 14770/1) - Restores governor friction to stabilise engine RPM - OEM tolerances for precise fit in governor assembly - Durable material withstands oil and heat exposure - Suitable for vintage Jap industrial engine restorations |
| Fits Models | JAP 4, 3 |
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