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Standard Ignition RY-939 Horn Relay
Reliable Horn Relay for Land Rover Discovery
The Standard Ignition RY-939 horn relay is designed specifically for Land Rover Discovery models requiring a dependable 12-volt relay solution. This relay features a rectangular connector shape and five male blade terminals to ensure secure and consistent electrical connections.
- Compatible with Land Rover Discovery vehicles
- 12-volt operating voltage for standard automotive electrical systems
- Rectangular connector shape for precise fitment
- Five male blade terminals for reliable connectivity
- Functions as a horn relay to control horn activation
- Mounting bracket not included
Product Details and Specifications
The Standard Ignition RY-939 horn relay operates at 12 volts and is engineered to meet the electrical requirements of Land Rover Discovery models. It features a rectangular connector shape that aligns with the vehicle’s wiring harness, providing a secure and stable connection. The relay includes five male blade terminals, which are standard in automotive electrical systems, allowing for straightforward installation and compatibility with existing wiring. This relay functions to control the horn circuit, enabling the horn to sound when activated by the driver.
Common Applications and Problem Resolution
- Restores horn functionality in Land Rover Discovery vehicles
- Replaces faulty or intermittent horn relays causing horn failure
- Solves issues related to horn not sounding or sounding weak
- Addresses electrical relay failures due to wear or corrosion
- Ensures consistent horn operation for safety and compliance
Installation Notes and Tips
Installation of the Standard Ignition RY-939 horn relay requires matching the rectangular connector shape and blade terminals to the vehicle’s wiring harness. Since the mounting bracket is not included, use the existing bracket or secure the relay in a suitable location within the engine compartment. Verify the relay’s orientation and terminal connections before finalizing installation to prevent electrical issues. Always disconnect the vehicle battery before replacing electrical components to ensure safety.
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance in Land Rover Discovery vehicles. The RY-939 horn relay undergoes rigorous quality control testing to maintain consistent electrical function. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.
| Brand | Standard Ignition |
| Part Number | RY-939 |
| Connector Shape | Rectangular |
| Functions | Relay |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
This part fits 22 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 2004 | Land Rover | Discovery | N/A | |
| 2003 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 2003 | Land Rover | Discovery | N/A | |
| 2002 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 2002 | Land Rover | Discovery | N/A | |
| 2001 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 2001 | Land Rover | Discovery | N/A | |
| 2000 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 2000 | Land Rover | Discovery | N/A | |
| 1999 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1999 | Land Rover | Discovery | N/A | |
| 1998 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1998 | Land Rover | Discovery | N/A | |
| 1997 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1997 | Land Rover | Discovery | N/A | |
| 1996 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1996 | Land Rover | Discovery | N/A | |
| 1995 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1995 | Land Rover | Discovery | N/A | |
| 1994 | Land Rover | Discovery | N/A | Black Finish; 5 Term. |
| 1994 | Land Rover | Discovery | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.