Description
Overview:
This Governor Spring is a genuine Villiers component designed for the C45 petrol engine (OEM/MPN 31138). Made from durable steel, it connects within the governor linkage to regulate engine speed under changing loads. By maintaining steady RPM, it supports smooth running, stable idle, and protects the engine from over-speeding. It is a direct, like-for-like replacement for worn or stretched springs and is suitable for owners maintaining Villiers-powered machinery. The part is built to original specification for consistent fit and performance on the Villiers C45, helping tradespeople and DIY users keep engines reliable and efficient with minimal downtime.
Key Features:
- Genuine Villiers part for correct fit and reliable operation (OEM/MPN 31138)
- Controls governor tension to maintain consistent engine speed under load
- Helps reduce hunting, surging, and over-revving for smoother running
- Durable steel construction for long service life in workshop and site conditions
- Direct replacement for tired or stretched springs to restore performance
- Engineered to original specification for the Villiers C45 petrol engine
- Assists with stable idle, cleaner acceleration, and predictable throttle response
- Straightforward to fit during routine servicing with basic hand tools
- Suitable for preventative maintenance to minimise downtime and call-backs
Typical Applications:
Used on Villiers C45 engines fitted to a range of small plant and garden machinery. Typical applications include older mowers, rotavators, generators, pumps, concrete mixers, and similar equipment where steady engine speed is important. Ideal as a service item when addressing poor idle, speed instability, or erratic governor behaviour.
Also known as:
Speed control spring, throttle governor spring, governor return spring, regulator spring, governor tension spring, control spring, engine governor tensioner. These terms are often used by mechanics and parts catalogues when referring to the same governor linkage spring on Villiers single-cylinder petrol engines.
Fits Models:
C45
Product Specifications
| L&S Part No. | 31138 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Villiers |
| OEM No. | 31138 |
| Unit of Sale | 1 |
| Applications | C45 |
| Machine Type | Engines |
| Fits Brands | Villiers |
| Fits Models | C45 |
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