HomeElectrical, Lighting and Body > RelaysStandard Ignition RY-939 Horn Relay
Part #: RY-939

Standard Ignition RY-939 Horn Relay

⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Land Rover, Discovery
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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.

BrandStandard Ignition
Part NumberRY-939
Connector ShapeRectangular
FunctionsRelay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 22 vehicles. Search below:

YearMakeModelPositionNotes
2004Land RoverDiscoveryN/ABlack Finish; 5 Term.
2004Land RoverDiscoveryN/A
2003Land RoverDiscoveryN/ABlack Finish; 5 Term.
2003Land RoverDiscoveryN/A
2002Land RoverDiscoveryN/ABlack Finish; 5 Term.
2002Land RoverDiscoveryN/A
2001Land RoverDiscoveryN/ABlack Finish; 5 Term.
2001Land RoverDiscoveryN/A
2000Land RoverDiscoveryN/ABlack Finish; 5 Term.
2000Land RoverDiscoveryN/A
1999Land RoverDiscoveryN/ABlack Finish; 5 Term.
1999Land RoverDiscoveryN/A
1998Land RoverDiscoveryN/ABlack Finish; 5 Term.
1998Land RoverDiscoveryN/A
1997Land RoverDiscoveryN/ABlack Finish; 5 Term.
1997Land RoverDiscoveryN/A
1996Land RoverDiscoveryN/ABlack Finish; 5 Term.
1996Land RoverDiscoveryN/A
1995Land RoverDiscoveryN/ABlack Finish; 5 Term.
1995Land RoverDiscoveryN/A
1994Land RoverDiscoveryN/ABlack Finish; 5 Term.
1994Land RoverDiscoveryN/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:

1R23592096325-052556-2612AR6445R6445RAA2376YWB101210L

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.