Standard Ignition RY-171 HVAC Relay

HVAC Relay for Honda and Acura Applications

Standard Ignition RY-171 is a 12 V HVAC relay built for select Honda and Acura vehicles that use a 4-blade terminal layout. With a 20 A amperage rating, a female rectangular connector, and a mounting bracket included, it matches the electrical and physical requirements of many OE-style HVAC relay replacements.

Use this relay when servicing HVAC relay circuits on applications such as 1988-1991 Honda Accord, 1988-1991 Honda Civic, and 1995-1998 Acura TL. The Standard Ignition RY-171 is also listed for Acura Integra, Acura CL, Honda CR-V, Honda CRX, Acura Legend, and Acura NSX applications where the OE relay specification matches.

Key Features

• 12 V HVAC relay for automotive climate control circuits
• 20 A amperage rating for relay-controlled HVAC operation
• Female rectangular connector with 1 connector interface
• 4 male blade terminals for OE-style electrical connection
• Mounting bracket included for secure installation
• Standard Ignition RY-171 part number for direct catalog lookup

Detailed Product Description

Standard Ignition RY-171 is an HVAC relay designed around common OE relay specifications used across Honda and Acura platforms. It features a rectangular connector, male blade terminals, and a 12 V electrical design, making it a practical replacement for relay-controlled HVAC functions in vehicles that call for the listed OE numbers and connector style. This part cross-references DENSO Auto Parts 567-0052 for the same application. The RY-171 part number is also commonly referenced in catalog searches for Acura Integra and Honda Civic HVAC relay service.

Fitment includes 2000-2001 Acura Integra, 1994 Acura Integra, 1997-1998 Acura CL, 1995-1998 Acura Integra, 1995-1998 Acura TL, 1997-1998 Honda CR-V, 1996-1997 Honda Civic, 1995-1996 Acura NSX, 1992-1993 Acura Integra, 1988-1991 Honda Accord, 1988-1991 Honda Civic, 1988-1991 Honda CRX, 1986-1990 Acura Legend, and 1986 Honda Accord. Verify OE number, connector shape, and terminal count before installation.

What It Helps Address

• HVAC relay failure that prevents blower or climate-control circuit operation
• Intermittent relay engagement in Honda and Acura HVAC systems
• Electrical mismatch caused by incorrect terminal or connector style
• Replacement needs for OE relay numbers listed in the fitment notes
• Service issues on vehicles using a 4-blade, 12 V HVAC relay layout

Installation Notes and Tips

Confirm the OE number in the vehicle service information before replacing the relay. Match the 4-terminal blade layout, female connector shape, and mounting bracket location to the original part. For 1995-1998 Acura Integra applications, note the fitment restriction that it is not compatible with a rubber boot. On 1995-1996 Acura NSX applications, the relay is listed for in-dash use with Denso-style identification.

Quality Assurance

Standard Ignition supplies this HVAC relay as an OE-style electrical replacement for listed Honda and Acura applications. The part is cataloged under Standard Ignition RY-171 and is referenced against multiple OE and aftermarket interchange numbers for application matching.