Standard Ignition RY-187 HVAC Relay

HVAC Relay for Acura and Honda Applications

The Standard Ignition RY-187 is a 12-volt HVAC relay with a 15 amp rating, built with a female rectangular connector, 4 male blade terminals, and an included mounting bracket. It is used as a starter relay in select Acura and Honda vehicles, including Acura CL, Integra, Legend, NSX, RL, TL, and Honda Civic, CR-V, and CRX applications.

For buyers searching for a Standard Ignition RY-187 HVAC relay for 1997-2001 Honda CR-V or 1999-2000 Honda Civic, this part provides the connector and terminal layout needed for direct replacement in listed vehicles.

• 12 V relay with 15 A amperage rating
• Female rectangular connector with 1 connector interface
• 4 male blade terminals for OE-style electrical connection
• Mounting bracket included for bracketed applications
• Used as a starter relay in listed HVAC-related applications
• Standard Ignition RY-187 replacement part number

Application Details

This relay is listed for a wide range of Acura and Honda models, including 2001-2003 Acura CL, 2000-2001 Acura Integra, 1997-2001 Honda CR-V, 1999-2000 Honda Civic, 1997-1999 Acura CL, 1997-1998 Acura RL, 1995-1998 Acura TL, 1991-1995 Acura Legend, and 1988-1991 Honda Civic and CRX. Fitment notes include OE No. 39797-SE0-003 on several applications, along with Denso and bracketed ATC relay references where specified.

This part cross-references Four Seasons 36002 for the same application.

Common Replacement Uses

• Replacing a failed HVAC relay in Acura CL, Integra, TL, or Legend models
• Restoring relay function in Honda Civic, CR-V, or CRX electrical systems
• Addressing intermittent HVAC relay operation in bracketed ATC setups
• Replacing an OE No. 39797-SE0-003 relay in listed Acura and Honda vehicles
• Correcting starter relay circuit issues in supported applications

Installation Notes

Verify connector shape, terminal count, and bracket style before installation. Match the vehicle’s OE reference number and confirm the relay location against the application notes, especially on models with HVAC Automatic Temperature Control (ATC) or Denso-branded relay references. Use the listed fitment details for 1984-2003 Acura and Honda applications to confirm proper placement.

Quality Assurance

Standard Ignition supplies this relay as an OE-style replacement electrical component for listed Acura and Honda applications. The RY-187 is built to the stated 12 V, 15 A, 4-blade terminal specification for accurate fitment matching.