Standard Ignition RY-1787 Accessory Power Relay
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Standard Ignition

Standard Ignition RY-1787 Accessory Power Relay

Brand Standard Ignition RY-1787
Connector Gender Male
Connector Shape Rectangular
Functions Accessory Relay
Mounting Bracket(s) Included No
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits Honda · 2 vehicles

Accessory relay. Provides reliable switching for 12-volt accessory circuits.

4-blade terminals. Rectangular male connector for straightforward electrical hookup.

Cross-references Carlson 16203, Standard Ignition RY-1787 and 39794S1AG01 for the same application. See all 5.

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Accessory Power Relay for Honda Civic

Standard Ignition RY-1787 is a 12-volt accessory power relay with a rectangular 4-pin male connector and blade terminals. It is built for direct replacement use in select Honda Civic applications, including 2004-2005 Honda Civic models with a male connector.

Key Features

  • Accessory relay function for electrical power switching
  • 12-volt relay for automotive electrical systems
  • 4-terminal, 4-connector male configuration
  • Rectangular connector shape for application-specific fitment
  • Blade terminal design for standard relay connections
  • Fits 2004-2005 Honda Civic, w/ Male Connector

Detailed Description

Standard Ignition RY-1787 is an accessory power relay used in vehicle electrical circuits that control accessory power delivery. The 4-pin male connector and blade terminal layout support a direct-fit replacement in the listed Honda Civic applications. If you are searching for a Honda Civic accessory relay, RY-1787 provides the correct electrical format for the confirmed fitment shown here. This part cross-references Carlson 16203 for the same application.

Common Problems This Relay May Address

  • Accessory power not switching on or off correctly
  • Intermittent electrical operation in the accessory circuit
  • Relay-related loss of power to controlled accessories
  • Faulty relay contact behavior in the vehicle electrical system
  • Replacement needs for a worn or failed Honda Civic accessory relay

Installation Notes and Tips

Verify the connector style, terminal layout, and voltage rating before installation. This relay is specified for 2004-2005 Honda Civic applications with a male connector, so confirm the vehicle’s relay socket matches the rectangular 4-pin configuration. Standard Ignition RY-1787 should be installed in the correct accessory relay location for the circuit being serviced.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical replacement parts. RY-1787 is specified with the listed connector and terminal configuration to support accurate fitment for the confirmed Honda Civic applications.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2005HondaCivicN/Aw/ Male Connector
2004HondaCivicN/Aw/ Male Connector
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Carlson — 16203Standard Ignition — RY-178739794S1AG01AR7291R7290