Standard Ignition RY-301 Horn Relay

Brand Standard Ignition RY-301
Fits Mazda · 21 vehicles

Direct relay replacement. 12-volt, 3-blade design with a rectangular female connector.

Mounting bracket included. Simplifies installation with the bracket already provided.

Standard Ignition quality. Trusted electrical replacement from a long-standing brand.

Cross-references Eastern Catalytic 20431, Standard Ignition RY-301 and 1R1779 for the same application. See all 11.

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Standard Ignition RY-301 Horn Relay

The Standard Ignition RY-301 is a 12-volt horn relay built with a rectangular female connector, three male blade terminals, and an included mounting bracket for a secure electrical replacement. It is a direct-fit style relay for select Mazda applications, including Mazda 323, B2200, B2600, 626, B2000, and RX-7 models.

Key Features

  • 12-volt horn relay for automotive electrical systems
  • Rectangular connector with 1 female connector interface
  • 3 male blade terminals for straightforward circuit connection
  • Mounting bracket included for stable installation
  • Standard Ignition RY-301 replacement part number
  • Fits select Mazda horn relay applications from 1982-1989

Detailed Description

Standard Ignition RY-301 is a horn relay designed for vehicles that use a 12-volt relay with a rectangular connector and blade-style terminals. The relay configuration includes one female connector and three male terminals, matching the electrical layout used in the listed Mazda applications. This part number, RY-301, is also referenced under several cross-number listings for the same application, including 1R1779 and 25-0174.

Compatible With 1986-1989 Mazda 323, 1987-1989 Mazda B2200, 1987-1989 Mazda B2600, 1983-1987 Mazda 626, 1986-1987 Mazda B2000, and 1982-1985 Mazda RX-7 horn relay applications. If you are replacing a failed horn relay on a Mazda 626 or sourcing a horn relay for a Mazda RX-7, this Standard Ignition RY-301 provides the specified connector and terminal layout for the listed vehicles.

What It Helps Fix

  • Horn inoperative due to relay failure
  • Intermittent horn operation caused by worn relay contacts
  • No-click relay response in the horn circuit
  • Electrical connection issues at the relay interface
  • Replacement needs for aging Mazda horn relay assemblies

Installation Notes and Tips

Verify the connector shape, terminal count, and voltage rating before installation. Match the existing relay bracket location and confirm the vehicle uses a 12-volt horn relay with a rectangular female connector and three male blade terminals. For best results, compare the original part number and connector layout on the vehicle before replacement.

Quality Assurance

Standard Ignition is a recognized aftermarket electrical parts brand, and the RY-301 is built to match the listed application requirements for fit and connector style. This part cross-references Eastern Catalytic 20431 for the same application.

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989Mazda323N/A—
1989MazdaB2200N/A—
1989MazdaB2600N/A—
1988Mazda323N/A—
1988MazdaB2200N/A—
1988MazdaB2600N/A—
1987Mazda323N/A—
1987Mazda626N/A—
1987MazdaB2000N/A—
1987MazdaB2200N/A—
1987MazdaB2600N/A—
1986Mazda323N/A—
1986Mazda626N/A—
1986MazdaB2000N/A—
1985Mazda626N/A—
1985MazdaRX-7N/A—
1984Mazda626N/A—
1984MazdaRX-7N/A—
1983Mazda626N/A—
1983MazdaRX-7N/A—
1982MazdaRX-7N/A—
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Eastern Catalytic — 20431Standard Ignition — RY-3011R177925-017456-211889057598AR407AR490FA0166810R4166RAA1573