Description
Overview:
The Switch, Relay for Kohler Engines (OEM No. 25 099 05-S) is a genuine Kohler electrical component used to control higher-current circuits in small engine equipment. It typically features a durable plastic housing with metal terminals and internal contacts engineered for consistent switching under engine bay conditions. Fitted in the wiring loom of Kohler-powered machines, it supports key functions such as starter engagement, ignition-enabled circuits, and powered accessories. Suitable for a wide range of Kohler horizontal and vertical shaft engines found in ride-on lawn mowers and compact machinery, including popular series like Command and Courage, this relay helps maintain reliable starting and operation. Being a genuine part, it offers the correct form and fit for straightforward replacement and long service life.
Key Features:
- Genuine Kohler part for assured compatibility and quality
- OEM reference 25 099 05-S for accurate identification and replacement
- Robust construction to withstand vibration, heat, and exposure in engine bays
- Stable switching performance to protect and control key electrical circuits
- Direct-fit design for clean, tidy installation with existing connectors
- Helps restore reliable starting and accessory power delivery
- Suitable for routine maintenance and preventative replacement to reduce downtime
- Consistent performance aligned with Kohler factory specifications
- Compact, lightweight form factor for easy placement in crowded compartments
- Supports efficient troubleshooting by replacing a common electrical wear item
Typical Applications:
Used in the electrical systems of Kohler-powered equipment such as ride-on mowers, garden tractors, generators, compressors, and pumps. Common roles include switching the starter solenoid feed, energising ignition-on circuits, or controlling fuel shut-off and accessory loads, helping ensure smooth starting and dependable operation.
Also known as:
Engine relay, starter relay, power relay, control relay, Kohler relay switch, electrical switch relay, equipment relay, small engine relay.
Alternate Part Numbers:
25 099 05S, 2509905-S, 2509905S
Product Specifications
| L&S Part No. | 25 099 05-S |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Kohler |
| Key Features | - Genuine Kohler part ensures compatibility with Kohler engines - OEM reference 25 099 05-S for precise replacement - Durable plastic housing withstands engine bay conditions - Direct-fit design for easy installation with existing connectors - Suitable for Kohler Command and Courage engine series |

