Delphi GN10323 Ignition Coil

Ignition Coil for Toyota and Lexus Applications

The Delphi GN10323 ignition coil is a coil-on-plug replacement built for direct ignition service on select Toyota, Lexus, and Scion vehicles. It uses a blade terminal design with a 4-terminal male connection and includes an ignition coil plus instruction sheet for service work.

Built from Delphi’s OE heritage and supplier experience, this ignition coil reflects the company’s background supporting major automakers with aftermarket parts informed by original equipment knowledge. The GN10323 is a practical choice for drivers and technicians servicing Toyota Tacoma, Lexus IS F, and related applications.

Key Features

• Coil-on-plug ignition coil for direct spark delivery
• Blade terminal type with 4 male terminals
• Includes ignition coil and instruction sheet
• OE-informed design from Delphi’s long automotive supply history
• Cross-references Beck/Arnley 178-8339 and Standard Ignition UF-495 for the same application

Vehicle Fitment

• Fits 2022-2024 Lexus IS500, N/A
• Fits 2018-2024 Lexus LC500, N/A
• Fits 2015-2024 Lexus RC F, N/A
• Fits 2005-2023 Toyota Tacoma, N/A
• Fits 2016-2020 Lexus GS F, N/A
• Fits 2013-2015 Scion xB, N/A, Engine # #CXXXXXX-GXXXXXX
• Fits 2008-2014 Lexus IS F, N/A
• Fits 2008-2012 Scion xB, N/A
• Fits 2011-2012 Toyota Matrix, N/A
• Fits 2007-2011 Toyota Camry, N/A, Except Japan Built
• Fits 2011 Toyota Tundra, N/A, To 10/2010
• Fits 2003-2010 Toyota 4Runner, N/A
• Fits 2009-2010 Toyota Corolla, N/A, Engine # #7XXXXXX-9XXXXXX; Engine # #AXXXXXX-A9XXXXX
• Fits 2009-2010 Toyota Matrix, N/A, Engine # #7XXXXXX-9XXXXXX; Engine # #AXXXXXX-A9XXXXX
• Fits 2005-2010 Toyota Tundra, N/A
• Fits 2008-2009 Toyota Camry, N/A
• Fits 2007-2009 Toyota FJ Cruiser, N/A
• Fits 2008 Toyota Solara, N/A
• Fits 2007 Toyota Camry, N/A, From Engine Serial Number 7XXXXXX; From Engine Serial Number AXXXXXX
• Fits 2007 Toyota Solara, N/A, From 05/2006
• Fits 2006 Toyota Camry, N/A, Japan Built; To Engine # 6XXXXXX; To 11/2005
• Fits 2006 Toyota Highlander, N/A, From 09/2005

Common Replacement Uses

• Misfire diagnosis on Toyota Tacoma, Lexus IS F, and similar coil-on-plug engines
• Restoring weak or inconsistent spark output
• Addressing rough idle or hesitation tied to ignition coil wear
• Replacing a failed coil during engine tune-up or drivability repair
• Correcting ignition-related fault codes on supported Toyota and Lexus models

Installation Notes and Tips

Verify engine serial number notes, build-date restrictions, and Japan-built exclusions before ordering. This part is listed for N/A position applications, so confirm the original coil style and connector match the vehicle before installation. Inspect the spark plug, boot area, and connector terminals during service to help prevent repeat ignition issues.

Quality Assurance

Delphi builds this ignition coil using OE experience developed through decades of supplying original equipment to major automakers. The GN10323 is engineered with that background in mind for service on Toyota, Lexus, and Scion ignition systems.